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PictionID:44808664 - Title:Atlas Payload Component - Catalog:14_014202 - Filename:14_014202.TIF - - - Image from the Convair/General Dynamics Astronautics Atlas Negative Collection. The processing, cataloging and digitization of these images has been made possible by a generous National Historical Publications and Records grant from the National Archives and Records Administration---Please Tag these images so that the information can be permanently stored with the digital file.---Repository: San Diego Air and Space Museum
1 UNCOMPROMISING IMAGE QUALITY
2 COMPATIBILITY AS A MATTER OF PRINCIPLE
3 ENDURING PERFORMANCE AND VALUE
4 SILENCE AND DISCRETION
5 SPEED AND FLEXIBILITY
6 COMPLETE CONTROL OF ALL PICTURE PARAMETERS
With its extremely high-resolution image sensor in full-frame 35-mm format and cutting-edge image-processing system, the Leica M9 is uncompromisingly dedicated to capturing images of the very highest quality. The photographer may choose between image storage in JPEG format for fast processing, or as raw data in DNG format that supports a multitude of post-processing options. Alternatively, both formats may be stored simultaneously. In the DNG format, photo- graphers may also choose between a compressed, but faster and greater space-saving option, or an uncompressed version that preserves maximum image quality.
Of course the Leica M9 offers photographers access to the complete Leica M lens system lenses, long acclaimed by experts and users as the best in the world. Its development began in 1954, and the M-System has been continually advanced and improved ever since. The high-resolution, full-format image sensor of the M9 fully exploits the performance of legendary Leica lenses from corner to corner.
It is hardly unusual that a Leica, once owned, becomes a lifelong companion. This also applies to the digital M9: Its closed, full-metal housing, crafted from a high-strength magnesium alloy, and its top deck and bottom plate machined from large blocks of brass, provide perfect protec- tion for its precious inner mechanisms. The digital components and shutter assembly of the M9 are similarly constructed with endurance in mind. Free firmware updates ensure that the camera benefits from the latest technology. In short: The Leica M9 is an investment for a lifetime.
Discretion and unobtrusiveness are particular strengths of the M-system. In operation, the shutter of the M9 is as quiet as a whisper. An extremely low noise level when cocking the shutter is ensured by a sophisticated motor and gearing system. In discreet mode, the shutter is only cocked after the photographer‘s finger is lifted from the shutter release button when, for instance, the camera is concealed under a jacket. When shooting handheld at long exposure times, or whenever extreme steadiness is essential, slight pressure on the shutter release button in ‘soft release’ mode is sufficient to trigger the camera. In addition to these advantages, the fact that the combination of camera and lens is significantly more compact than any other full-frame camera system contributes to the fact that M photographers are frequently unnoticed and often simply blend into the background.
The Leica M9 adapts to its intended uses in a seamlessly flexible manner. Its sensitivity ranges from ISO 80 for wide-open apertures on bright days to ISO 2500 for low-light image capture. Very low noise levels and finely detailed images are achieved throughout the sensitivity range, even at the highest ISO settings. Very low image noise characteristics, an extremely bright viewfinder/rangefinder, low-vibration shutter and the availability of super fast lenses make the M9 the perfect camera for available-light photography.
The Leica M9 aids photographers with automatic functions whenever they’re required, but it never dictates how to shoot or interferes with the picture-taking process. Depending on the light level, the automatic ISO shift function increases the sensitivity of the camera as soon as the shutter speed falls below a hand-holdable value. At the same time, it also limits the shift to a maximum value determined by the photographer. This means that correct exposure without camera shake and the lowest possible sensitivity is always available to guarantee the best possible image quality in all situations. In addition, the M9 also offers automatic exposure bracketing with a user-selectable number of shots and exposure increments. This function ensures that even high-contrast subjects are perfectly captured.
Like every M camera of the past half century, the M9 is concentrated, by design, on the most photographically relevant functions. Its manual focusing – based on the combined viewfinder and rangefinder concept – and aperture priority exposure mode enable photographers to achieve maximum creative expression without imposing any limitations on their creative freedom. In combination with the 2.5-inch LCD monitor on the back, the simple, intuitive menu navigation system controlled by only a few buttons ensures rapid access to the entire range of camera functions.
7 FULL FRAME 24 × 36 MM – WITHOUT ANY COMPROMISES
8 OPTIMIZED SENSOR
9 INTUITIVE CONTROLS
10 ALL INFORMATION AT THE PUSH
OF A BUTTON
The CCD image sensor in the M9 was specifically designed and developed for this camera and offers full 35-mm film format without any compromises. All M lenses mounted on the M9 offer the same exact angle of view they had when shooting film material and therefore can now be used to an optimum effect. In other words, all the outstanding characteristics of Leica M lenses are now fully maintained for digital photography as well. In short, the high resolution and superior image quality of the M9 has the ability to fully exploit the enormous potential of M lenses.
In the case of the M9, it wasn’t a matter of modifying the lenses to match the image sensor, but rather the other way around. Our dedication to further developing the image sensor has resulted in a component perfectly matched to its intended role in the very compact M-System as well as to the performance of M lenses. The special layout of the micro lenses found in the M9 sensor makes it tolerant of oblique light rays impinging on its surface, thus assuring uniform exposure and extreme sharpness from corner to corner in every image. As a result, future Leica M lenses can be designed and optimized with uncompromising dedication to the achievement of the highest performance and compact construction. A newly developed sensor filter ensures the suppression of undesirable infrared light. The conscious decision to do without a moiré filter, a cause of image deterioration through loss of resolution, ensures maximum resolution of fine detail. The optimized signal-noise ratio of the CCD image sensor reduces the need for digital post-processing and ensures that M9 images possess an unrivaled and natural visual impact.
The key control element of the M9 is an intuitive four-way switch and dial combination used in conjunction with the 2.5-inch LCD monitor on the back. To set the ISO sensitivity, simply maintain light pressure on the ISO button while simultaneously turning the dial to select the required setting. All other functions important for everyday situations are quickly and easily accessible by pressing the set button: white balance, image-data compression, resolution, exposure correction, exposure bracketing, and programmable user profiles. The user profiles can be programmed with any combination of camera and shooting settings, stored under an assigned name, and accessed quickly whenever required for a particular situation. An additional pre-defined snapshot profile is also available. In snapshot mode, the M9 automa- tically sets as many settings as possible, thus providing a valuable aid to spontaneous and discreet photography. All other functions – from automatic lens recognition via six-bit lens- mount coding and selection of the required color space to cleaning of the sensor – are easily found in the clearly arranged main camera menu.
Pressing the “info” button in shooting mode displays the precise charge level of the battery, the remaining number of frames on the installed memory card, and the most important basic shooting settings, for example the shutter speed, on the camera’s brilliant 2.5-inch LCD monitor. In image-view mode, users can switch between an image-only view (with a zoom option up to single pixel level) or access other information by simply turning the dial. The available data includes information on the ISO sensitivity setting and shutter speed in use, plus a precise histogram display.
The Leica M9 embodies the heritage and amassed experience of more than five decades of the M-System. It is also, simultaneously, a digital system camera at the absolute pinnacle of modern technology. For Leica designers, photography has always been their prime concern – whether film or digital. The combination of an extremely efficient image sensor, the latest digital components, and the classic viewfinder/rangefinder principle – consistently optimized over many years – make the Leica M9 absolutely unique in all the world.
1
WORKFLOW SOFTWARE IS INCLUDED
The digital image processing workflow solution Adobe® Photoshop® Lightroom® is included in the M9 package.
The M9 is supplied complete with Adobe® Photoshop® Lightroom®, a professional digital work- flow solution for Apple Mac® OS X and Microsoft Windows®. The software is available as a free of charge online download for all Leica M9 customers. This also ensures that the latest release is always readily available. Adobe® Photoshop® Lightroom® offers a vast range of functions for the administration, processing, and exporting of digital images. If the images from the M9 are saved as raw data in the standardized and future-proof Adobe Digital Negative Format (DNG), then the sophisticated and precise processing options of Adobe® Photoshop® Lightroom® guarantee direct and extremely high-quality image processing with maximum image quality. At the same time, the 16-bit per channel color information captured by the image sensor is maintained throughout the processing workflow from image import to image export, ensuring that the most delicate tonal differentiations are preserved in maximum quality after completion of the post-processing sequence.
The Leica M9 can display a precise RGB tonal value histogram of the captured image after each shot, and also offers optional integration of the histogram in the automatic image view display. The clipping warning display over- and underexposed zones in each image, warning the photographer of potentially unusable images. An innovative feature is that the histogram is recalculated every time a new part of the image is viewed, thus enabling a precise quality assessment of small image areas and even the finest image details.
This alternate pusher component is designed to secure to the sliding table with a lever actuated clamping post. The bumper component has the same rubberized gasketing material along one edge to help secure stock wedged between the two plywood components that make up the system. Also shown in this photo is an alternate plywood "bumper" component.
Component parts for a model diorama of London Transport's Staines country bus garage that I am building for a customer.
PictionID:44808627 - Title:Atlas Payload Component - Catalog:14_014199 - Filename:14_014199.TIF - - - Image from the Convair/General Dynamics Astronautics Atlas Negative Collection. The processing, cataloging and digitization of these images has been made possible by a generous National Historical Publications and Records grant from the National Archives and Records Administration---Please Tag these images so that the information can be permanently stored with the digital file.---Repository: San Diego Air and Space Museum
PictionID:44723552 - Title:Atlas Program Component - Catalog:14_013260 - Filename:14_013260.TIF - - - Image from the Convair/General Dynamics Astronautics Atlas Negative Collection. The processing, cataloging and digitization of these images has been made possible by a generous National Historical Publications and Records grant from the National Archives and Records Administration---Please Tag these images so that the information can be permanently stored with the digital file.---Repository: San Diego Air and Space Museum
A technician with the John C. Stennis Space Center's Fluid Component Facility studies samples to determine cleanliness of valves and fittings used on pipes that transport liquid fuel and propellants. The clean room where the technicians work is similar to a hospital surgical room.
Credit: NASA
Image Number: 95-081-19
Date: 1995
Universal Studios Florida is a theme park located in Orlando, Florida. Opened on June 7, 1990, the park's theme is the entertainment industry, in particular movies and television. Universal Studios Florida inspires its guests to "ride the movies", and it features numerous attractions and live shows. The park is one component of the larger Universal Orlando Resort.
In 2013, the park hosted an estimated 7.06 million guests, ranking it the eighth-most visited theme park in the United States, and ranking it sixteenth worldwide.[2]
Contents [hide]
1 History 1.1 Park history
1.2 Branding
1.3 Timeline
1.4 Previous attractions
2 Park design 2.1 Production Central
2.2 New York
2.3 San Francisco
2.4 London/Diagon Alley
2.5 World Expo
2.6 Woody Woodpecker's Kidzone
2.7 Hollywood
3 Character appearances
4 Production facilities
5 Annual events 5.1 Grad Bash and Gradventure
5.2 Halloween Horror Nights
5.3 Macy's Holiday Parade
5.4 Mardi Gras
5.5 Rock the Universe
5.6 Summer Concert Series
6 Universal's Express Pass
7 Attendance
8 See also
9 References
10 External links
History[edit]
This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (August 2010)
The original entrance to the theme park.
Over the years, Universal Studios Florida has not limited itself to attractions based on its own vast film library. It has occasionally licensed popular characters from other rival studios, many of whom did not operate theme parks themselves. Some examples include Ghostbusters and Men in Black, (Sony's Columbia Pictures), The Simpsons (20th Century Fox) and Shrek (DreamWorks Animation).
Many of the park's past and present attractions were developed with the actual creators of the films they were based on, and feature the original stars as part of the experience. Steven Spielberg helped create E.T. Adventure and was a creative consultant for Back to the Future: The Ride, Twister...Ride it Out, An American Tail Theatre, Jaws, Men in Black: Alien Attack and Transformers: The Ride.
In many current rides, the original stars reprised their film roles including: Rip Torn and Will Smith in Men in Black: Alien Attack, Brendan Fraser for Revenge of the Mummy: The Ride, Bill Paxton and Helen Hunt in Twister...Ride it Out, Arnold Schwarzenegger, Edward Furlong and Linda Hamilton reprised their roles for Terminator 2: 3-D Battle Across Time, Mike Myers, Eddie Murphy, Cameron Diaz, and John Lithgow for Shrek 4D, Steve Carell, Miranda Cosgrove, Dana Gaier, and Elsie Fisher reprised their roles from Despicable Me for Despicable Me: Minion Mayhem, and Peter Cullen and Frank Welker reprised their roles as Optimus Prime and Megatron for Transformers: The Ride.
In many former rides, the many original stars were also to reprise their film roles such as: Christopher Lloyd and Thomas F. Wilson in Back to the Future: The Ride, Roy Scheider recorded a voice over for the conclusion of Jaws, Alfred Hitchcock and Anthony Perkins appeared in Alfred Hitchcock: The Art of Making Movies, additionally, various Nicktoon voice actors reprised their roles in Jimmy Neutron's Nicktoon Blast.
Park history[edit]
From its inception in 1982,[3] Universal Studios Florida was designed as a theme park and a working studio. It was also the first time that Universal Studios had constructed an amusement park "from the ground up." However, the proposed project was put on hold until 1986, when a meeting between Steven Spielberg, a co-founder for the park, and Peter N. Alexander prompted for the creation of a Back to the Future simulator ride in addition to the already planned King Kong based ride.[4]
A major component of the original park in Hollywood is its studio tour, which featured several special-effects exhibits and encounters built into the tour, such as an attack by the great white shark from the film Jaws. For its Florida park, Universal Studios took the concepts of the Hollywood tour scenes and developed them into larger, stand-alone attractions. As an example, in Hollywood, the studio tour trams travel close to a shoreline and are "attacked" by Jaws before they travel to the next part of the tour. In Florida, guests entered the "Jaws" attraction and would board a boat touring the fictitious Amity Harbor, where they encountered the shark, then exited back into the park at the conclusion of the attraction. Universal Studios Florida originally had a Studio Tour attraction that visited the production facilities, but that tour has since been discontinued.
Branding[edit]
Previous slogans for Universal Studios Florida were: See the Stars. Ride the Movies. (1990 - 1998); No one makes believe like we do! (1990 - 1998); Ride the Movies (1998 - 2008); Jump into the Action (2008–2012). The current slogan is: Experience the Movies (2012–present).
Timeline[edit]
1986: Land clearing takes place on the swamp land purchased by MCA/Universal that would hold the park.
1987: Universal Studios Florida is announced at a press conference on the Hollywood property, with a planned opening date of December 1989.
1988: Universal Studios Florida's opening date is delayed from December, 1989 to May 1, 1990. Shortly following, MCA/Universal releases a video detailing the future park, which stars Christopher Lloyd as the Universal character Doc Brown interacting with the various attractions at the Florida park.[5] Universal Studios allows guests to witness the production of television shows and motion pictures in the Florida park's soundstages in middle 1988, while the rest of the studio/park is still under construction.[6]
1989: MCA/Universal Studios claims that The Walt Disney Company and its CEO, Michael Eisner copied several concepts of the Universal Studios Florida park, and integrated them into Disney's recently opened Disney/MGM Studios park.[7]
1990: On January 31, Universal Studios Florida's opening date is again delayed from May 1, 1990 to June 7, 1990.[8] Universal Studios Florida begins soft openings for the general public in late May.[9] Many of the park's attractions are not yet open at the time, and still under testing. Universal Studios Florida is officially opened with a grand opening style ceremony on June 7.[10] The park opens with five themed areas: The Front Lot (entrance area), Production Central, New York, San Francisco/Amity, Expo Center, Hollywood as well as a Lagoon located in the center of the park. The Front Lot and Production Central areas are referred to as "In Production", the New York section is referred to as "Now Shooting", the San Francisco and Amity sections are referred to as "On Location" and the Expo Center area is referred to as "The World of CineMagic Center". Nickelodeon Studios also opened on this day where there was a grand opening ceremony hosted by Marc Summers. Due to massive technical problems with the original Kongfrontation, Earthquake: The Big One and Jaws rides, Universal begins a temporary voucher service to allow guests to re-visit the studio/park when the attractions are operating.[10] Jaws is temporarily closed by Universal on September 30 due to persistent major technical problems. During the shut-down, Universal sues the original designer of the Jaws ride,[11] Ride & Show Engineering, and hires Totally Fun Company to create a re-designed version of most of the ride.
1991: Universal adds four new attractions to the park: The Blues Brothers Show, StreetBusters, The Screen Test Home Video Adventure and How to Make a Mega Movie Deal.[12] Back to the Future: The Ride officially opens in the World Expo Center area of the park, in a grand opening ceremony.[13] The ride is considered to be a success, and receives positive reception from theme park critics.[14] Fright Nights debuts at the park. In 1992, it is renamed to Halloween Horror Nights.
1993: Jaws is re-opened, with many scenes altered. MCA/Universal announces plans to expand Universal Studios Florida into the Universal City, Florida resort complex, including a second theme park and multiple hotels.[15]
1995: Universal Studios Florida celebrates its 5th anniversary. A Day in the Park with Barney opens in the World Expo area. The Production Studio Tour is closed due to a dwindle in the studios' recent Film/TV production.
1996: Terminator 2: 3-D Battle Across Time opens in the Hollywood area.[16]
1997: Universal announces that Ghostbusters Spooktacular will be replaced by Twister...Ride it Out, with a planned opening date of Spring 1998[17] Universal Studios announces that the sole Studio park will be expanded into the Universal Studios Escape, including the Islands of Adventure park, Universal CityWalk Orlando and multiple hotels. The Islands of Adventure Preview Center opens in the New York area, replacing The Screen Test Home Video Adventure. It is meant to give guests a preview of the up-coming Islands of Adventure park, as well as expansion of the Studio park into the Universal Studios Escape resort.
1998: The expansion begins as the original open parking lot for Universal Studios Florida is demolished and replaced by CityWalk and a parking garage complex.[18] Universal delays the opening of Twister...Ride it Out from March, 1998 to May 4, 1998 out of respect for the 42 deaths caused by a recent El Nino outbreak of tornadoes in the central Florida area. Twister...Ride it Out opens in the New York area, replacing Ghostbusters Spooktacular.[19] A new area of the park, Woody Woodpecker's Kidzone, is officially opened, holding the attractions Curious George Goes to Town, StarToons and the previously opened Fievel's Playland, E.T. Adventure, Animal Actors Stage and A Day in the Park with Barney; CityWalk opens outside of the park.
1999: Woody Woodpecker's Nuthouse Coaster opens in the Woody Woodpecker's Kidzone area. Islands of Adventure opens next door to Universal Studios Florida.[20]
2000: Men in Black: Alien Attack opens in the World Expo area, on the former site of The Swamp Thing Set. Universal Studios Florida's 10th anniversary celebration.
2001: Animal Planet Live opens, replacing Animal Actors Stage.
2002: Universal Studios Escape is renamed Universal Orlando Resort. Kongfrontation closes in a closing ceremony. Halloween Horror Nights is moved to Islands of Adventure. Macy's Holiday Parade debuts at the park.
2003: Jimmy Neutron's Nicktoon Blast opens, replacing The Funtastic World of Hanna-Barbera.[21] Shrek 4-D opens with Donkey's Photo Finish, replacing Alfred Hitchcock: The Art of Making Movies and Stage 54 respectively.[22]
2004: Revenge of the Mummy: The Ride opens, replacing Kongfrontation.[23] Halloween Horror Nights takes place in both Universal Studios Florida and Islands of Adventure.
2005: Universal Express Plus is introduced, replacing Universal Express. Nickelodeon Studios closes after nearly 15 years. Fear Factor Live opens, replacing The Wild Wild Wild West Stunt Show. Universal Studios Florida celebrates its 15th anniversary.
2006: Delancey Street Preview Center opens in the New York area. Universal 360: A Cinesphere Spectacular opens, replacing Dynamite Nights Stunt Spectacular. Animal Planet Live is closed, and replaced by Animal Actors on Location. Halloween Horror Nights returns to Universal Studios Florida for its "Sweet 16".
2007: Back to the Future: The Ride closes on March 30.[24] Blue Man Group Sharp Aquos Theatre opens in CityWalk, replacing Nickelodeon Studios. Earthquake: The Big One closes in the San Francisco area on November 5.
2008: Disaster!: A Major Motion Picture Ride...Starring You! opens, replacing Earthquake: The Big One.[25] Universal announces Hollywood Rip Ride Rockit, with a planned opening of Spring 2009. The Simpsons Ride opens, replacing Back to the Future: The Ride.[26]
2009: The Universal Music Plaza Stage opens, replacing The Boneyard. Hollywood Rip Ride Rockit opens.
2010: The 20th anniversary of Universal Studios Florida in June, as well as Halloween Horror Nights in October.
2011: The 10th anniversary of Macy's Holiday Parade at the park.[27]
2012: Jaws and the surrounding Amity themed area closes, as announced on December 2, 2011.[28] Universal announces the additions of Universal’s Cinematic Spectacular: 100 Years of Movie Memories and Universal's Superstar Parade to the park, with openings on May 8, 2012.[29] Despicable Me: Minion Mayhem, opens replacing Jimmy Neutron's Nicktoon Blast; as announced on March 14, 2011 as "...one of many exciting things planned for the next couple of years".[30] Universal Orlando Resort announced Transformers: The Ride will officially open in the summer of 2013, replacing Soundstages 44 and 54, which were demolished on June 24, 2012.[31] SpongeBob StorePants,a gift shop themed after SpongeBob SquarePants opened in Woody Woodpecker's Kidzone replacing the Universal Cartoon Store
2013: The opening date for Transformers The Ride is announced for June 20, 2013. Details of The Wizarding World of Harry Potter expansion are officially announced. Details for the new Simpsons Land are announced and expected to open in the summer of 2013. Transformers: The Ride officially opens in the Production Central area replacing Soundstage 44. Simpsons Fast Food Boulevard (renamed Springfield U.S.A.) concludes its expansion as it includes one new ride: Kang and Kodos Twirl 'n' Hurl.
2014: The opening date for The Wizarding World of Harry Potter Diagon Alley is announced for July 8, 2014 amid the Diagon Alley preview red carpet premiere on June 18, 2014 with Domhnall Gleeson, Bonnie Wright, Evanna Lynch, Matthew Lewis, James and Oliver Phelps, Tom Felton, Robbie Coltrane, Warwick Davis and Helena Bonham Carter attending the premiere. King's Cross station opens on July 1, 2014 as well as the Hogwarts Express Hogsmeade station at Universal's Islands of Adventure, connecting park visitors to both theme Harry Potter theme parks via a full scale replica of the train that appears in the Harry Potter film series. Diagon Alley officially opens, replacing Jaws and the Amity section of the park.
Previous attractions[edit]
Main article: List of former Universal Studios Florida attractions
The previous icon of the Jaws ride is still a popular photo spot.
Like all theme parks, attractions are sometimes closed due to aging and replaced with more contemporary attractions. Universal has seen this happen several times. Some notable closures include Kongfrontation, Back to the Future: The Ride, The Funtastic World of Hanna-Barbera and Jaws. The closures of Kongfrontation, Back to the Future, and Jaws have been given homages by the park to honor veteran visitors who revered the former rides.
Park design[edit]
Main article: List of Universal Studios Florida attractions
Universal Studios Florida features seven themed areas all situated around a large lagoon. In 2012, this lagoon was the site of Universal’s Cinematic Spectacular: 100 Years of Movie Memories, a thematic display that showcased scenes from various Universal films, featuring lasers, projectors and fountains, and pyrotechnics.
The seven surrounding themed areas, clockwise from the entrance, are Production Central, New York, San Francisco, London/Diagon Alley, World Expo, Woody Woodpecker's Kidzone and Hollywood. Each area features a combination of rides, shows, attractions, character appearances, dining outlets and merchandise stores. A new area, based on Harry Potter's Diagon Alley was added to the park in the July of 2014.
Production Central[edit]
Ride
Year opened
Manufacturer
Despicable Me: Minion Mayhem 2012 Intamin
Shrek 4-D 2003 PDI/DreamWorks
Hollywood Rip, Ride, Rockit 2009 Maurer Söhne
Transformers: The Ride 3D 2013 Oceaneering International
The Universal Music Plaza Stage 2009
The area is also home to a variety of dining outlets and merchandise shops. Food and beverage items can be purchased from Beverly Hills Boulangerie or Universal Studios' Classic Monsters Cafe while merchandise can be bought from a variety of themed stores including Universal Studios Store, Studio Sweets, It's a Wrap!, Super Silly Stuff, Shrek's Ye Olde Souvenir Shoppe, and Transformers: Supply Vault.[32][33]
Modeling the circuit as a printed circuit board where the components are visible but the traces on the printed circuit board are not.
Part of the circuitry snacks project: Edible models of functioning electronic circuits. Designed for fun, for geeks, for kids, and for teaching and learning electronics.
PictionID:44808603 - Title:Atlas Payload Component - Catalog:14_014197 - Filename:14_014197.TIF - - - Image from the Convair/General Dynamics Astronautics Atlas Negative Collection. The processing, cataloging and digitization of these images has been made possible by a generous National Historical Publications and Records grant from the National Archives and Records Administration---Please Tag these images so that the information can be permanently stored with the digital file.---Repository: San Diego Air and Space Museum
not so grainy on larger size [all sizes]
constructive components made of paper tubes, rolls of aluminum (offset) rubber and some wire, exceeds of the press of a newspaper
sort of shigeru ban
(all the parts are grouped separately)
Includes stock, trigger, handgaurd, shotgun shell, and carry handle/sights
This diagram/ infographic was used in the One Too Many Mornings blog post 'Inbound marketing for small businesses' www.onetoomanymornings.co.uk/inbound-marketing-for-small-....
The infographic was designed and recreated by Sally King from SK Graphic Design www.skgraphicdesign.co.uk/
(CC) Gavin Llewellyn. www.onetoomanymornings.co.uk. Feel free to use this picture. Please link back to the original picture on Flickr and credit as shown above.
The International Space Station (ISS) is a space station (habitable artificial satellite) in low Earth orbit. The ISS programme is a joint project between five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA (Japan), ESA (Europe), and CSA (Canada).[6][7] The ownership and use of the space station is established by intergovernmental treaties and agreements.[8]
The ISS serves as a microgravity and space environment research laboratory in which crew members conduct experiments in biology, human biology, physics, astronomy, meteorology, and other fields.[9][10][11] The station is suited for the testing of spacecraft systems and equipment required for missions to the Moon and Mars.[12] The ISS maintains an orbit with an average altitude of 400 kilometres (250 mi) by means of reboost manoeuvres using the engines of the Zvezda module or visiting spacecraft.[13] It circles the Earth in roughly 92 minutes and completes 15.5 orbits per day.[14]
The station is divided into two sections, the Russian Orbital Segment (ROS), which is operated by Russia, and the United States Orbital Segment (USOS), which is shared by many nations. Roscosmos has endorsed the continued operation of ISS through 2024,[15] but had previously proposed using elements of the Russian segment to construct a new Russian space station called OPSEK.[16]As of December 2018, the station is expected to operate until 2030.[17]
The first ISS component was launched in 1998, with the first long-term residents arriving on 2 November 2000.[18] Since then, the station has been continuously occupied for 18 years and 359 days.[19] This is the longest continuous human presence in low Earth orbit, having surpassed the previous record of 9 years and 357 days held by Mir. The latest major pressurised module was fitted in 2011, with an experimental inflatable space habitat added in 2016. Development and assembly of the station continues, with several major new Russian elements scheduled for launch starting in 2020. The ISS is the largest human-made body in low Earth orbit and can often be seen with the naked eye from Earth.[20][21] The ISS consists of pressurised habitation modules, structural trusses, solar arrays, radiators, docking ports, experiment bays and robotic arms. Major ISS modules have been launched by Russian Proton and Soyuz rockets and US Space Shuttles.[22]
The ISS is the ninth space station to be inhabited by crews, following the Soviet and later Russian Salyut, Almaz, and Mir stations as well as Skylab from the US. The station is serviced by a variety of visiting spacecraft: the Russian Soyuz and Progress, the US Dragon and Cygnus, the Japanese H-II Transfer Vehicle,[6] and the European Automated Transfer Vehicle. The Dragon spacecraft allows the return of pressurised cargo to Earth (downmass), which is used for example to repatriate scientific experiments for further analysis. The Soyuz return capsule has minimal downmass capability next to the astronauts.
The ISS has been visited by astronauts, cosmonauts and space tourists from 18 different nations. As of 14 March 2019, 236 people from 18 countries had visited the space station, many of them multiple times. The United States sent 149 people, Russia sent 47, nine were Japanese, eight were Canadian, five were Italian, four were French, three were German, and there were one each from Belgium, Brazil, Denmark, Kazakhstan, Malaysia, the Netherlands, South Africa, United Arab Emirates, South Korea, Spain, Sweden, and the United Kingdom.[23]
Contents
1 Purpose
2 Manufacturing
3 Assembly
4 Structure
5 Systems
6 Operations
7 Mission controls
8 Fleet operations
9 Life aboard
10 Crew health and safety
11 Orbital debris threats
12 End of mission
13 Cost
14 International co-operation
15 Sightings from Earth
16 See also
17 Notes
18 References
19 Further reading
20 External links
Purpose
The ISS was originally intended to be a laboratory, observatory, and factory while providing transportation, maintenance, and a low Earth orbit staging base for possible future missions to the Moon, Mars, and asteroids. However, not all of the uses envisioned in the initial Memorandum of Understanding between NASA and Roskosmos have come to fruition.[24] In the 2010 United States National Space Policy, the ISS was given additional roles of serving commercial, diplomatic[25] and educational purposes.[26]
Scientific research
Main article: Scientific research on the International Space Station
Comet Lovejoy photographed by Expedition 30 commander Dan Burbank
Expedition 8 Commander and Science Officer Michael Foale conducts an inspection of the Microgravity Science Glovebox
Fisheye view of several labs
CubeSats are deployed by the NanoRacks CubeSat Deployer
The ISS provides a platform to conduct scientific research, with power, data, cooling, and crew available to support experiments. Small uncrewed spacecraft can also provide platforms for experiments, especially those involving zero gravity and exposure to space, but space stations offer a long-term environment where studies can be performed potentially for decades, combined with ready access by human researchers.[27][28]
The ISS simplifies individual experiments by allowing groups of experiments to share the same launches and crew time. Research is conducted in a wide variety of fields, including astrobiology, astronomy, physical sciences, materials science, space weather, meteorology, and human research including space medicine and the life sciences.[9][10][11][29][30] Scientists on Earth have timely access to the data and can suggest experimental modifications to the crew. If follow-on experiments are necessary, the routinely scheduled launches of resupply craft allows new hardware to be launched with relative ease.[28] Crews fly expeditions of several months' duration, providing approximately 160 person-hours per week of labour with a crew of 6. However, a considerable amount of crew time is taken up by station maintenance.[9][31]
Perhaps the most notable ISS experiment is the Alpha Magnetic Spectrometer (AMS), which is intended to detect dark matter and answer other fundamental questions about our universe and is as important as the Hubble Space Telescope according to NASA. Currently docked on station, it could not have been easily accommodated on a free flying satellite platform because of its power and bandwidth needs.[32][33] On 3 April 2013, scientists reported that hints of dark matter may have been detected by the AMS.[34][35][36][37][38][39] According to the scientists, "The first results from the space-borne Alpha Magnetic Spectrometer confirm an unexplained excess of high-energy positrons in Earth-bound cosmic rays."
The space environment is hostile to life. Unprotected presence in space is characterised by an intense radiation field (consisting primarily of protons and other subatomic charged particles from the solar wind, in addition to cosmic rays), high vacuum, extreme temperatures, and microgravity.[40] Some simple forms of life called extremophiles,[41] as well as small invertebrates called tardigrades[42] can survive in this environment in an extremely dry state through desiccation.
Medical research improves knowledge about the effects of long-term space exposure on the human body, including muscle atrophy, bone loss, and fluid shift. This data will be used to determine whether high duration human spaceflight and space colonisation are feasible. As of 2006, data on bone loss and muscular atrophy suggest that there would be a significant risk of fractures and movement problems if astronauts landed on a planet after a lengthy interplanetary cruise, such as the six-month interval required to travel to Mars.[43][44]
Medical studies are conducted aboard the ISS on behalf of the National Space Biomedical Research Institute (NSBRI). Prominent among these is the Advanced Diagnostic Ultrasound in Microgravity study in which astronauts perform ultrasound scans under the guidance of remote experts. The study considers the diagnosis and treatment of medical conditions in space. Usually, there is no physician on board the ISS and diagnosis of medical conditions is a challenge. It is anticipated that remotely guided ultrasound scans will have application on Earth in emergency and rural care situations where access to a trained physician is difficult.[45][46][47]
Free fall
ISS crew member storing samples
A comparison between the combustion of a candle on Earth (left) and in a free fall environment, such as that found on the ISS (right)
Gravity at the altitude of the ISS is approximately 90% as strong as at Earth's surface, but objects in orbit are in a continuous state of freefall, resulting in an apparent state of weightlessness.[48] This perceived weightlessness is disturbed by five separate effects:[49]
Drag from the residual atmosphere.
Vibration from the movements of mechanical systems and the crew.
Actuation of the on-board attitude control moment gyroscopes.
Thruster firings for attitude or orbital changes.
Gravity-gradient effects, also known as tidal effects. Items at different locations within the ISS would, if not attached to the station, follow slightly different orbits. Being mechanically interconnected these items experience small forces that keep the station moving as a rigid body.
Researchers are investigating the effect of the station's near-weightless environment on the evolution, development, growth and internal processes of plants and animals. In response to some of this data, NASA wants to investigate microgravity's effects on the growth of three-dimensional, human-like tissues, and the unusual protein crystals that can be formed in space.[10]
Investigating the physics of fluids in microgravity will provide better models of the behaviour of fluids. Because fluids can be almost completely combined in microgravity, physicists investigate fluids that do not mix well on Earth. In addition, examining reactions that are slowed by low gravity and low temperatures will improve our understanding of superconductivity.[10]
The study of materials science is an important ISS research activity, with the objective of reaping economic benefits through the improvement of techniques used on the ground.[50] Other areas of interest include the effect of the low gravity environment on combustion, through the study of the efficiency of burning and control of emissions and pollutants. These findings may improve current knowledge about energy production, and lead to economic and environmental benefits. Future plans are for the researchers aboard the ISS to examine aerosols, ozone, water vapour, and oxides in Earth's atmosphere, as well as cosmic rays, cosmic dust, antimatter, and dark matter in the universe.[10]
Exploration
A 3D plan of the Russia-based MARS-500 complex, used for ground-based experiments which complement ISS-based preparations for a human mission to Mars
The ISS provides a location in the relative safety of Low Earth Orbit to test spacecraft systems that will be required for long-duration missions to the Moon and Mars. This provides experience in operations, maintenance as well as repair and replacement activities on-orbit, which will be essential skills in operating spacecraft farther from Earth, mission risks can be reduced and the capabilities of interplanetary spacecraft advanced.[12] Referring to the MARS-500 experiment, ESA states that "Whereas the ISS is essential for answering questions concerning the possible impact of weightlessness, radiation and other space-specific factors, aspects such as the effect of long-term isolation and confinement can be more appropriately addressed via ground-based simulations".[51] Sergey Krasnov, the head of human space flight programmes for Russia's space agency, Roscosmos, in 2011 suggested a "shorter version" of MARS-500 may be carried out on the ISS.[52]
In 2009, noting the value of the partnership framework itself, Sergey Krasnov wrote, "When compared with partners acting separately, partners developing complementary abilities and resources could give us much more assurance of the success and safety of space exploration. The ISS is helping further advance near-Earth space exploration and realisation of prospective programmes of research and exploration of the Solar system, including the Moon and Mars."[53] A crewed mission to Mars may be a multinational effort involving space agencies and countries outside the current ISS partnership. In 2010, ESA Director-General Jean-Jacques Dordain stated his agency was ready to propose to the other four partners that China, India and South Korea be invited to join the ISS partnership.[54] NASA chief Charlie Bolden stated in February 2011, "Any mission to Mars is likely to be a global effort".[55] Currently, US federal legislation prevents NASA co-operation with China on space projects.[56]
Education and cultural outreach
Original Jules Verne manuscripts displayed by crew inside Jules Verne ATV
The ISS crew provides opportunities for students on Earth by running student-developed experiments, making educational demonstrations, allowing for student participation in classroom versions of ISS experiments, and directly engaging students using radio, videolink and email.[6][57] ESA offers a wide range of free teaching materials that can be downloaded for use in classrooms.[58] In one lesson, students can navigate a 3-D model of the interior and exterior of the ISS, and face spontaneous challenges to solve in real time.[59]
JAXA aims to inspire children to "pursue craftsmanship" and to heighten their "awareness of the importance of life and their responsibilities in society."[60] Through a series of education guides, a deeper understanding of the past and near-term future of crewed space flight, as well as that of Earth and life, will be learned.[61][62] In the JAXA Seeds in Space experiments, the mutation effects of spaceflight on plant seeds aboard the ISS is explored. Students grow sunflower seeds which flew on the ISS for about nine months. In the first phase of Kibō utilisation from 2008 to mid-2010, researchers from more than a dozen Japanese universities conducted experiments in diverse fields.[63]
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ESA Astronaut Paolo Nespoli's spoken voice, recorded about the ISS in November 2017, for Wikipedia
Cultural activities are another major objective. Tetsuo Tanaka, director of JAXA's Space Environment and Utilization Center, says "There is something about space that touches even people who are not interested in science."[64]
Amateur Radio on the ISS (ARISS) is a volunteer programme which encourages students worldwide to pursue careers in science, technology, engineering and mathematics through amateur radio communications opportunities with the ISS crew. ARISS is an international working group, consisting of delegations from nine countries including several countries in Europe as well as Japan, Russia, Canada, and the United States. In areas where radio equipment cannot be used, speakerphones connect students to ground stations which then connect the calls to the station.[65]
First Orbit is a feature-length documentary film about Vostok 1, the first crewed space flight around the Earth. By matching the orbit of the International Space Station to that of Vostok 1 as closely as possible, in terms of ground path and time of day, documentary filmmaker Christopher Riley and ESA astronaut Paolo Nespoli were able to film the view that Yuri Gagarin saw on his pioneering orbital space flight. This new footage was cut together with the original Vostok 1 mission audio recordings sourced from the Russian State Archive. Nespoli, during Expedition 26/27, filmed the majority of the footage for this documentary film, and as a result is credited as its director of photography.[66] The film was streamed through the website firstorbit.org in a global YouTube premiere in 2011, under a free licence.[67]
In May 2013, commander Chris Hadfield shot a music video of David Bowie's "Space Oddity" on board the station; the film was released on YouTube.[68] It was the first music video ever to be filmed in space.[69]
In November 2017, while participating in Expedition 52/53 on the ISS, Paolo Nespoli made two recordings (one in English the other in his native Italian) of his spoken voice, for use on Wikipedia articles. These were the first content made specifically for Wikipedia, in space.[70][71]
Manufacturing
Main article: Manufacturing of the International Space Station
ISS module Node 2 manufacturing and processing in the SSPF
Since the International Space Station is a multi-national collaborative project, the components for in-orbit assembly were manufactured in various countries around the world. Beginning in the mid 1990s, the U.S. components Destiny, Unity, the Integrated Truss Structure, and the solar arrays were fabricated at the Marshall Space Flight Center and the Michoud Assembly Facility. These modules were delivered to the Operations and Checkout Building and the Space Station Processing Facility for final assembly and processing for launch.[72]
The Russian modules, including Zarya and Zvezda, were manufactured at the Khrunichev State Research and Production Space Center in Moscow. Zvezda was initially manufactured in 1985 as a component for Mir-2, but was never launched and instead became the ISS Service Module.[73]
The European Space Agency Columbus module was manufactured at the European Space Research and Technology Centre (ESTEC) in the Netherlands, along with many other contractors throughout Europe.[74] The other ESA-built modules - Harmony, Tranquility, the Leonardo MPLM, and the Cupola - were initially manufactured at the Thales Alenia Space factory located at the Cannes Mandelieu Space Center. The structural steel hulls of the modules were transported by aircraft to the Kennedy Space Center SSPF for launch processing.[75]
The Japanese Experiment Module Kibō, was fabricated in various technology manufacturing facilities in Japan, at the NASDA (now JAXA) Tanegashima Space Center, and the Institute of Space and Astronautical Science. The Kibo module was transported by ship and flown by aircraft to the KSC Space Station Processing Facility.[76]
The Mobile Servicing System, consisting of the Canadarm2 and the Dextre grapple fixture, was manufactured at various factories in Canada and the United States under contract by the Canadian Space Agency. The mobile base system, a connecting framework for Canadarm2 mounted on rails, was built by Northrop Grumman.
Assembly
Main articles: Assembly of the International Space Station and List of ISS spacewalks
The assembly of the International Space Station, a major endeavour in space architecture, began in November 1998.[3] Russian modules launched and docked robotically, with the exception of Rassvet. All other modules were delivered by the Space Shuttle, which required installation by ISS and shuttle crewmembers using the Canadarm2 (SSRMS) and extra-vehicular activities (EVAs); as of 5 June 2011, they had added 159 components during more than 1,000 hours of EVA (see List of ISS spacewalks). 127 of these spacewalks originated from the station, and the remaining 32 were launched from the airlocks of docked Space Shuttles.[77] The beta angle of the station had to be considered at all times during construction.[78]
The first module of the ISS, Zarya, was launched on 20 November 1998 on an autonomous Russian Proton rocket. It provided propulsion, attitude control, communications, electrical power, but lacked long-term life support functions. Two weeks later, a passive NASA module Unity was launched aboard Space Shuttle flight STS-88 and attached to Zarya by astronauts during EVAs. This module has two Pressurised Mating Adapter (PMAs), one connects permanently to Zarya, the other allowed the Space Shuttle to dock to the space station. At that time, the Russian station Mir was still inhabited, and the ISS remained uncrewed for two years. On 12 July 2000, Zvezda was launched into orbit. Preprogrammed commands on board deployed its solar arrays and communications antenna. It then became the passive target for a rendezvous with Zarya and Unity: it maintained a station-keeping orbit while the Zarya-Unity vehicle performed the rendezvous and docking via ground control and the Russian automated rendezvous and docking system. Zarya's computer transferred control of the station to Zvezda's computer soon after docking. Zvezda added sleeping quarters, a toilet, kitchen, CO2 scrubbers, dehumidifier, oxygen generators, exercise equipment, plus data, voice and television communications with mission control. This enabled permanent habitation of the station.[79][80]
The first resident crew, Expedition 1, arrived in November 2000 on Soyuz TM-31. At the end of the first day on the station, astronaut Bill Shepherd requested the use of the radio call sign "Alpha", which he and cosmonaut Krikalev preferred to the more cumbersome "International Space Station".[81] The name "Alpha" had previously been used for the station in the early 1990s,[82] and its use was authorised for the whole of Expedition 1.[83] Shepherd had been advocating the use of a new name to project managers for some time. Referencing a naval tradition in a pre-launch news conference he had said: "For thousands of years, humans have been going to sea in ships. People have designed and built these vessels, launched them with a good feeling that a name will bring good fortune to the crew and success to their voyage."[84] Yuri Semenov, the President of Russian Space Corporation Energia at the time, disapproved of the name "Alpha" as he felt that Mir was the first modular space station, so the names "Beta" or "Mir 2" for the ISS would have been more fitting.[83][85][86]
Expedition 1 arrived midway between the flights of STS-92 and STS-97. These two Space Shuttle flights each added segments of the station's Integrated Truss Structure, which provided the station with Ku-band communication for US television, additional attitude support needed for the additional mass of the USOS, and substantial solar arrays supplementing the station's existing 4 solar arrays.[87]
Over the next two year, the station continued to expand. A Soyuz-U rocket delivered the Pirs docking compartment. The Space Shuttles Discovery, Atlantis, and Endeavour delivered the Destiny laboratory and Quest airlock, in addition to the station's main robot arm, the Canadarm2, and several more segments of the Integrated Truss Structure.
The expansion schedule was interrupted by the Space Shuttle Columbia disaster in 2003 and a resulting hiatus in flights. The Space Shuttle was grounded until 2005 with STS-114 flown by Discovery.[88]
Assembly resumed in 2006 with the arrival of STS-115 with Atlantis, which delivered the station's second set of solar arrays. Several more truss segments and a third set of arrays were delivered on STS-116, STS-117, and STS-118. As a result of the major expansion of the station's power-generating capabilities, more pressurised modules could be accommodated, and the Harmony node and Columbus European laboratory were added. These were soon followed by the first two components of Kibō. In March 2009, STS-119 completed the Integrated Truss Structure with the installation of the fourth and final set of solar arrays. The final section of Kibō was delivered in July 2009 on STS-127, followed by the Russian Poisk module. The third node, Tranquility, was delivered in February 2010 during STS-130 by the Space Shuttle Endeavour, alongside the Cupola, followed in May 2010 by the penultimate Russian module, Rassvet. Rassvet was delivered by Space Shuttle Atlantis on STS-132 in exchange for the Russian Proton delivery of the US-funded Zarya module in 1998.[89] The last pressurised module of the USOS, Leonardo, was brought to the station in February 2011 on the final flight of Discovery, STS-133.[90] The Alpha Magnetic Spectrometer was delivered by Endeavour on STS-134 the same year.[91]
As of June 2011, the station consisted of 15 pressurised modules and the Integrated Truss Structure. Five modules are still to be launched, including the Nauka with the European Robotic Arm, the Prichal module, and two power modules called NEM-1 and NEM-2.[92] As of March 2019, Russia's future primary research module Nauka is set to launch in the summer of 2020, along with the European Robotic Arm which will be able to relocate itself to different parts of the Russian modules of the station.[93]
The gross mass of the station changes over time. The total launch mass of the modules on orbit is about 417,289 kg (919,965 lb) (as of 3 September 2011).[94] The mass of experiments, spare parts, personal effects, crew, foodstuff, clothing, propellants, water supplies, gas supplies, docked spacecraft, and other items add to the total mass of the station. Hydrogen gas is constantly vented overboard by the oxygen generators.
The ISS is a third generation[95] modular space station.[96] Modular stations can allow modules to be added to or removed from the existing structure, allowing greater flexibility.
Below is a diagram of major station components. The blue areas are pressurised sections accessible by the crew without using spacesuits. The station's unpressurised superstructure is indicated in red. Other unpressurised components are yellow. The Unity node joins directly to the Destiny laboratory. For clarity, they are shown apart.
Zarya
Zarya as seen by Space Shuttle Endeavour during STS-88
Zarya (Russian: Заря́, lit. 'Dawn'), also known as the Functional Cargo Block or FGB (from the Russian: "Функционально-грузовой блок", lit. 'Funktsionalno-gruzovoy blok' or ФГБ), is the first module of the ISS to be launched.[97] The FGB provided electrical power, storage, propulsion, and guidance to the ISS during the initial stage of assembly. With the launch and assembly in orbit of other modules with more specialized functionality, Zarya is now[when?] primarily used for storage, both inside the pressurized section and in the externally mounted fuel tanks. The Zarya is a descendant of the TKS spacecraft designed for the Russian Salyut program. The name Zarya, which means sunrise,[97] was given to the FGB because it signified the dawn of a new era of international cooperation in space. Although it was built by a Russian company, it is owned by the United States.[98]
Zarya was built from December 1994 to January 1998 at the Khrunichev State Research and Production Space Center (KhSC) in Moscow.[97]
Zarya was launched on 20 November 1998 on a Russian Proton rocket from Baikonur Cosmodrome Site 81 in Kazakhstan to a 400 km (250 mi) high orbit with a designed lifetime of at least 15 years. After Zarya reached orbit, STS-88 launched on 4 December 1998 to attach the Unity module.
Unity
Unity as seen by Space Shuttle Endeavour during STS-88
Main article: Unity (ISS module)
The Unity connecting module, also known as Node 1, is the first U.S.-built component of the ISS. It connects the Russian and United States segments of the station, and is where crew eat meals together.
The module is cylindrical in shape, with six berthing locations (forward, aft, port, starboard, zenith, and nadir) facilitating connections to other modules. Unity measures 4.57 metres (15.0 ft) in diameter, is 5.47 metres (17.9 ft) long, made of steel, and was built for NASA by Boeing in a manufacturing facility at the Marshall Space Flight Center in Huntsville, Alabama. Unity is the first of the three connecting modules; the other two are Harmony and Tranquility.
Unity was carried into orbit as the primary cargo of the Space Shuttle Endeavour on STS-88, the first Space Shuttle mission dedicated to assembly of the station. On 6 December 1998, the STS-88 crew mated the aft berthing port of Unity with the forward hatch of the already orbiting Zarya module. This was the first connection made between two station modules.
Zvezda
Zvezda as seen by Space Shuttle Endeavour during STS-97
Main article: Zvezda (ISS module)
Zvezda (Russian: Звезда́, meaning "star"), Salyut DOS-8, also known as the Zvezda Service Module, is a module of the ISS. It was the third module launched to the station, and provides all of the station's life support systems, some of which are supplemented in the USOS, as well as living quarters for two crew members. It is the structural and functional center of the Russian Orbital Segment, which is the Russian part of the ISS. Crew assemble here to deal with emergencies on the station.[99][100][101]
The basic structural frame of Zvezda, known as "DOS-8", was initially built in the mid-1980s to be the core of the Mir-2 space station. This means that Zvezda is similar in layout to the core module (DOS-7) of the Mir space station. It was in fact labeled as Mir-2 for quite some time in the factory. Its design lineage thus extends back to the original Salyut stations. The space frame was completed in February 1985 and major internal equipment was installed by October 1986.
The rocket used for launch to the ISS carried advertising; it was emblazoned with the logo of Pizza Hut restaurants,[102][103][104] for which they are reported to have paid more than US$1 million.[105] The money helped support Khrunichev State Research and Production Space Center and the Russian advertising agencies that orchestrated the event.[106]
On 26 July 2000, Zvezda became the third component of the ISS when it docked at the aft port of Zarya. (U.S. Unity module had already been attached to the Zarya.) Later in July, the computers aboard Zarya handed over ISS commanding functions to computers on Zvezda.[107]
Destiny
The Destiny module being installed on the ISS
Main article: Destiny (ISS module)
The Destiny module, also known as the U.S. Lab, is the primary operating facility for U.S. research payloads aboard the International Space Station (ISS).[108][109] It was berthed to the Unity module and activated over a period of five days in February, 2001.[110] Destiny is NASA's first permanent operating orbital research station since Skylab was vacated in February 1974.
The Boeing Company began construction of the 14.5-tonne (32,000 lb) research laboratory in 1995 at the Michoud Assembly Facility and then the Marshall Space Flight Center in Huntsville, Alabama.[108] Destiny was shipped to the Kennedy Space Center in Florida in 1998, and was turned over to NASA for pre-launch preparations in August 2000. It launched on 7 February 2001 aboard the Space Shuttle Atlantis on STS-98.[110]
Quest
Quest Joint Airlock Module
Main article: Quest Joint Airlock
The Quest Joint Airlock, previously known as the Joint Airlock Module, is the primary airlock for the ISS. Quest was designed to host spacewalks with both Extravehicular Mobility Unit (EMU) spacesuits and Orlan space suits. The airlock was launched on STS-104 on 14 July 2001. Before Quest was attached, Russian spacewalks using Orlan suits could only be done from the Zvezda service module, and American spacewalks using EMUs were only possible when a Space Shuttle was docked. The arrival of Pirs docking compartment on September 16, 2001 provided another airlock from which Orlan spacewalks can be conducted.[citation needed]
Pirs and Poisk
The Pirs module attached to the ISS.
Poisk after arriving at the ISS on 12 November 2009.
Main articles: Pirs (ISS module) and Poisk (ISS module)
Pirs (Russian: Пирс, lit. 'pier') and Poisk (Russian: По́иск, lit. 'search') are Russian airlock modules, each having 2 identical hatches. An outward-opening hatch on the Mir space station failed after it swung open too fast after unlatching, because of a small amount of air pressure remaining in the airlock.[111] All EVA hatches on the ISS open inwards and are pressure-sealing. Pirs was used to store, service, and refurbish Russian Orlan suits and provided contingency entry for crew using the slightly bulkier American suits. The outermost docking ports on both airlocks allow docking of Soyuz and Progress spacecraft, and the automatic transfer of propellants to and from storage on the ROS.[112]
Pirs was launched on 14 September 2001, as ISS Assembly Mission 4R, on a Russian Soyuz-U rocket, using a modified Progress spacecraft, Progress M-SO1, as an upper stage. Poisk was launched on 10 November 2009[113][114] attached to a modified Progress spacecraft, called Progress M-MIM2, on a Soyuz-U rocket from Launch Pad 1 at the Baikonur Cosmodrome in Kazakhstan.
Harmony
Harmony shown connected to Columbus, Kibo, and Destiny. PMA-2 faces. The nadir and zenith locations are open.
Main article: Harmony (ISS module)
Harmony, also known as Node 2, is the "utility hub" of the ISS. It connects the laboratory modules of the United States, Europe and Japan, as well as providing electrical power and electronic data. Sleeping cabins for four of the six crew are housed here.[115]
Harmony was successfully launched into space aboard Space Shuttle flight STS-120 on October 23, 2007.[116][117] After temporarily being attached to the port side of the Unity node,[118][119] it was moved to its permanent location on the forward end of the Destiny laboratory on November 14, 2007.[120] Harmony added 2,666 cubic feet (75.5 m3) to the station's living volume, an increase of almost 20 percent, from 15,000 cu ft (420 m3) to 17,666 cu ft (500.2 m3). Its successful installation meant that from NASA's perspective, the station was "U.S. Core Complete".
Tranquility
Tranquility in 2011
Main article: Tranquility (ISS module)
Tranquility, also known as Node 3, is a module of the ISS. It contains environmental control systems, life support systems, a toilet, exercise equipment, and an observation cupola.
ESA and the Italian Space Agency had Tranquility built by Thales Alenia Space. A ceremony on November 20, 2009 transferred ownership of the module to NASA.[121] On February 8, 2010, NASA launched the module on the Space Shuttle's STS-130 mission.
Columbus
The Columbus module on the ISS
Main article: Columbus (ISS module)
Columbus is a science laboratory that is part of the ISS and is the largest single contribution to the ISS made by the European Space Agency (ESA).
Like the Harmony and Tranquility modules, the Columbus laboratory was constructed in Turin, Italy by Thales Alenia Space. The functional equipment and software of the lab was designed by EADS in Bremen, Germany. It was also integrated in Bremen before being flown to the Kennedy Space Center (KSC) in Florida in an Airbus Beluga. It was launched aboard Space Shuttle Atlantis on 7 February 2008 on flight STS-122. It is designed for ten years of operation. The module is controlled by the Columbus Control Centre, located at the German Space Operations Centre, part of the German Aerospace Center in Oberpfaffenhofen near Munich, Germany.
The European Space Agency has spent €1.4 billion (about US$2 billion) on building Columbus, including the experiments that will fly in it and the ground control infrastructure necessary to operate them.[122]
Kibō
Kibō Exposed Facility on the right
Main article: Kibo (ISS module)
The Japanese Experiment Module (JEM), nicknamed Kibo (きぼう Kibō, Hope), is a Japanese science module for the ISS developed by JAXA. It is the largest single ISS module, and is attached to the Harmony module. The first two pieces of the module were launched on Space Shuttle missions STS-123 and STS-124. The third and final components were launched on STS-127.[123]
Pressurised Module
Experiment Logistics Module
Exposed Facility
Experiment Logistics Module
Remote Manipulator System
Cupola
The Cupola's windows with shutters open.
Main article: Cupola (ISS module)
The Cupola is an ESA-built observatory module of the ISS. Its name derives from the Italian word cupola, which means "dome". Its seven windows are used to conduct experiments, dockings and observations of Earth. It was launched aboard Space Shuttle mission STS-130 on 8 February 2010 and attached to the Tranquility (Node 3) module. With the Cupola attached, ISS assembly reached 85 percent completion. The Cupola's central window has a diameter of 80 cm (31 in).[124]
Rassvet
Rassvet as seen from the Cupola module during STS-132 with a Progress in the lower right
Main article: Rassvet (ISS module)
Rassvet (Russian: Рассве́т; lit. "dawn"), also known as the Mini-Research Module 1 (MRM-1) (Russian: Малый исследовательский модуль, МИМ 1) and formerly known as the Docking Cargo Module (DCM), is a component of the ISS. The module's design is similar to the Mir Docking Module launched on STS-74 in 1995. Rassvet is primarily used for cargo storage and as a docking port for visiting spacecraft. It was flown to the ISS aboard Space Shuttle Atlantis on the STS-132 mission on May 14, 2010,[125] and was connected to the ISS on May 18.[126] The hatch connecting Rassvet with the ISS was first opened on May 20.[127] On 28 June 2010, the Soyuz TMA-19 spacecraft performed the first docking with the module.[128]
Leonardo
Leonardo Permanent Multipurpose Module
Main article: Leonardo (ISS module)
The Leonardo Permanent Multipurpose Module (PMM) is a module of the ISS. It was flown into space aboard the Space Shuttle on STS-133 on 24 February 2011 and installed on 1 March. Leonardo is primarily used for storage of spares, supplies and waste on the ISS, which was until then stored in many different places within the space station. The Leonardo PMM was a Multi-Purpose Logistics Module (MPLM) before 2011, but was modified into its current configuration. It was formerly one of three MPLM used for bringing cargo to and from the ISS with the Space Shuttle. The module was named for Italian polymath Leonardo da Vinci.
Bigelow Expandable Activity Module
Progression of expansion of BEAM
Main article: Bigelow Expandable Activity Module
The Bigelow Expandable Activity Module (BEAM) is an experimental expandable space station module developed by Bigelow Aerospace, under contract to NASA, for testing as a temporary module on the ISS from 2016 to at least 2020. It arrived at the ISS on 10 April 2016,[129] was berthed to the station on 16 April, and was expanded and pressurized on 28 May 2016.
International Docking Adapter
IDA-1 upright
Main article: International Docking Adapter
The International Docking Adapter (IDA) is a spacecraft docking system adapter developed to convert APAS-95 to the NASA Docking System (NDS)/International Docking System Standard (IDSS). An IDA is placed on each of the ISS' two open Pressurized Mating Adapters (PMAs), both of which are connected to the Harmony module.
IDA-1 was lost during the launch failure of SpaceX CRS-7 on 28 June 2015.[130][131][132]
IDA-2 was launched on SpaceX CRS-9 on 18 July 2016.[133] It was attached and connected to PMA-2 during a spacewalk on 19 August 2016.[134] First docking was achieved with the arrival of Crew Dragon Demo-1 on 3 March 2019. [135]
IDA-3 was launched on the SpaceX CRS-18 mission in July 2019.[136] IDA-3 is constructed mostly from spare parts to speed construction.[137] It was attached and connected to PMA-3 during a spacewalk on 21 August 2019. [138]
Unpressurised elements
ISS Truss Components breakdown showing Trusses and all ORUs in situ
The ISS has a large number of external components that do not require pressurisation. The largest of these is the Integrated Truss Structure (ITS), to which the station's main solar arrays and thermal radiators are mounted.[139] The ITS consists of ten separate segments forming a structure 108.5 m (356 ft) long.[3]
The station was intended to have several smaller external components, such as six robotic arms, three External Stowage Platforms (ESPs) and four ExPRESS Logistics Carriers (ELCs).[140][141] While these platforms allow experiments (including MISSE, the STP-H3 and the Robotic Refueling Mission) to be deployed and conducted in the vacuum of space by providing electricity and processing experimental data locally, their primary function is to store spare Orbital Replacement Units (ORUs). ORUs are parts that can be replaced when they fail or pass their design life, including pumps, storage tanks, antennas, and battery units. Such units are replaced either by astronauts during EVA or by robotic arms.[142] Several shuttle missions were dedicated to the delivery of ORUs, including STS-129,[143] STS-133[144] and STS-134.[145] As of January 2011, only one other mode of transportation of ORUs had been utilised – the Japanese cargo vessel HTV-2 – which delivered an FHRC and CTC-2 via its Exposed Pallet (EP).[146][needs update]
Construction of the Integrated Truss Structure over New Zealand.
There are also smaller exposure facilities mounted directly to laboratory modules; the Kibō Exposed Facility serves as an external 'porch' for the Kibō complex,[147] and a facility on the European Columbus laboratory provides power and data connections for experiments such as the European Technology Exposure Facility[148][149] and the Atomic Clock Ensemble in Space.[150] A remote sensing instrument, SAGE III-ISS, was delivered to the station in February 2017 aboard CRS-10,[151] and the NICER experiment was delivered aboard CRS-11 in June 2017.[152] The largest scientific payload externally mounted to the ISS is the Alpha Magnetic Spectrometer (AMS), a particle physics experiment launched on STS-134 in May 2011, and mounted externally on the ITS. The AMS measures cosmic rays to look for evidence of dark matter and antimatter.[153][154]
The commercial Bartolomeo External Payload Hosting Platform, manufactured by Airbus, is due to launch in May 2019 aboard a commercial ISS resupply vehicle and be attached to the European Columbus module. It will provide a further 12 external payload slots, supplementing the eight on the ExPRESS Logistics Carriers, ten on Kibō, and four on Columbus. The system is designed to be robotically serviced and will require no astronaut intervention. It is named after Christopher Columbus's younger brother.[155][156][157]
Robotic arms and cargo cranes
Commander Volkov stands on Pirs with his back to the Soyuz whilst operating the manual Strela crane holding photographer Kononenko.
Dextre, like many of the station's experiments and robotic arms, can be operated from Earth and perform tasks while the crew sleeps.
The Integrated Truss Structure serves as a base for the station's primary remote manipulator system, called the Mobile Servicing System (MSS), which is composed of three main components. Canadarm2, the largest robotic arm on the ISS, has a mass of 1,800 kilograms (4,000 lb) and is used to dock and manipulate spacecraft and modules on the USOS, hold crew members and equipment in place during EVAs and move Dextre around to perform tasks.[158] Dextre is a 1,560 kg (3,440 lb) robotic manipulator with two arms, a rotating torso and has power tools, lights and video for replacing orbital replacement units (ORUs) and performing other tasks requiring fine control.[159] The Mobile Base System (MBS) is a platform which rides on rails along the length of the station's main truss. It serves as a mobile base for Canadarm2 and Dextre, allowing the robotic arms to reach all parts of the USOS.[160] To gain access to the Russian Segment a grapple fixture was added to Zarya on STS-134, so that Canadarm2 can inchworm itself onto the ROS.[161] Also installed during STS-134 was the 15 m (50 ft) Orbiter Boom Sensor System (OBSS), which had been used to inspect heat shield tiles on Space Shuttle missions and can be used on station to increase the reach of the MSS.[161] Staff on Earth or the station can operate the MSS components via remote control, performing work outside the station without space walks.
Japan's Remote Manipulator System, which services the Kibō Exposed Facility,[162] was launched on STS-124 and is attached to the Kibō Pressurised Module.[163] The arm is similar to the Space Shuttle arm as it is permanently attached at one end and has a latching end effector for standard grapple fixtures at the other.
The European Robotic Arm, which will service the Russian Orbital Segment, will be launched alongside the Multipurpose Laboratory Module in 2017.[164] The ROS does not require spacecraft or modules to be manipulated, as all spacecraft and modules dock automatically and may be discarded the same way. Crew use the two Strela (Russian: Стрела́; lit. Arrow) cargo cranes during EVAs for moving crew and equipment around the ROS. Each Strela crane has a mass of 45 kg (99 lb).
Planned componments
Nauka
Artist's rendering of the Nauka module docked to Zvezda.
Main article: Nauka (ISS module)
Nauka (Russian: Нау́ка; lit. Science), also known as the Multipurpose Laboratory Module (MLM), (Russian: Многофункциональный лабораторный модуль, or МЛМ), is a component of the ISS which has not yet been launched into space. The MLM is funded by the Roscosmos State Corporation. In the original ISS plans, Nauka was to use the location of the Docking and Stowage Module. Later, the DSM was replaced by the Rassvet module and it was moved to Zarya's nadir port. Planners anticipate Nauka will dock at Zvezda's nadir port, replacing Pirs.[165]
The launch of Nauka, initially planned for 2007, has been repeatedly delayed for various reasons. As of September 2019, the launch to the ISS is assigned to no earlier than December 2020.[166] After this date, the warranties of some of Nauka's systems will expire.
Prichal
Mockup of the Prichal module at the Yuri Gagarin Cosmonaut Training Center
Main article: Prichal (ISS module)
Prichal, also known as Uzlovoy Module or UM (Russian: Узловой Модуль "Причал", Nodal Module Berth),[167] is a 4-tonne (8,800 lb)[168] ball-shaped module that will allow docking of two scientific and power modules during the final stage of the station assembly, and provide the Russian segment additional docking ports to receive Soyuz MS and Progress MS spacecraft. UM is due to be launched in 2022.[169] It will be integrated with a special version of the Progress cargo ship and launched by a standard Soyuz rocket, docking to the nadir port of the Nauka module. One port is equipped with an active hybrid docking port, which enables docking with the MLM module. The remaining five ports are passive hybrids, enabling docking of Soyuz and Progress vehicles, as well as heavier modules and future spacecraft with modified docking systems. The node module was intended to serve as the only permanent element of the cancelled OPSEK.[170][171]
Science Power Modules 1 and 2
Science Power Module 1 (SPM-1, also known as NEM-1) Science Power Module 2 (SPM-2, also known as NEM-2) are modules planned to arrive at the ISS in 2022.[169][172][173] It is going to dock to the Prichal module, which is planned to be attached to the Nauka module.[173] If Nauka is cancelled, then the Prichal, SPM-1, and SPM-2 would dock at the zenith port of Zvezda. SPM-1 and SPM-2 would also be required components for the OPSEK space station.[174]
Bishop Airlock Module
Main article: Bishop Airlock Module
The NanoRacks Bishop Airlock Module is a commercially-funded airlock module intended to be launched to the ISS on SpaceX CRS-21 in August 2020.[175][176] The module is being built by NanoRacks, Thales Alenia Space, and Boeing.[177] It will be used to deploy CubeSats, small satellites, and other external payloads for NASA, CASIS, and other commercial and governmental customers.[178]
Cancelled componments
The cancelled Habitation module under construction at Michoud in 1997
Several modules planned for the station were cancelled over the course of the ISS programme. Reasons include budgetary constraints, the modules becoming unnecessary, and station redesigns after the 2003 Columbia disaster. The US Centrifuge Accommodations Module would have hosted science experiments in varying levels of artificial gravity.[179] The US Habitation Module would have served as the station's living quarters. Instead, the sleep stations are now spread throughout the station.[180] The US Interim Control Module and ISS Propulsion Module would have replaced the functions of Zvezda in case of a launch failure.[181] Two Russian Research Modules were planned for scientific research.[182] They would have docked to a Russian Universal Docking Module.[183] The Russian Science Power Platform would have supplied power to the Russian Orbital Segment independent of the ITS solar arrays.
Systems
Life support
Main articles: ISS ECLSS and Chemical oxygen generator
The critical systems are the atmosphere control system, the water supply system, the food supply facilities, the sanitation and hygiene equipment, and fire detection and suppression equipment. The Russian Orbital Segment's life support systems are contained in the Zvezda service module. Some of these systems are supplemented by equipment in the USOS. The MLM Nauka laboratory has a complete set of life support systems.
Atmospheric control systems
A flowchart diagram showing the components of the ISS life support system.
The interactions between the components of the ISS Environmental Control and Life Support System (ECLSS)
The atmosphere on board the ISS is similar to the Earth's.[184] Normal air pressure on the ISS is 101.3 kPa (14.69 psi);[185] the same as at sea level on Earth. An Earth-like atmosphere offers benefits for crew comfort, and is much safer than a pure oxygen atmosphere, because of the increased risk of a fire such as that responsible for the deaths of the Apollo 1 crew.[186] Earth-like atmospheric conditions have been maintained on all Russian and Soviet spacecraft.[187]
The Elektron system aboard Zvezda and a similar system in Destiny generate oxygen aboard the station.[188] The crew has a backup option in the form of bottled oxygen and Solid Fuel Oxygen Generation (SFOG) canisters, a chemical oxygen generator system.[189] Carbon dioxide is removed from the air by the Vozdukh system in Zvezda. Other by-products of human metabolism, such as methane from the intestines and ammonia from sweat, are removed by activated charcoal filters.[189]
Part of the ROS atmosphere control system is the oxygen supply. Triple-redundancy is provided by the Elektron unit, solid fuel generators, and stored oxygen. The primary supply of oxygen is the Elektron unit which produces O
2 and H
2 by electrolysis of water and vents H2 overboard. The 1 kW (1.3 hp) system uses approximately one litre of water per crew member per day. This water is either brought from Earth or recycled from other systems. Mir was the first spacecraft to use recycled water for oxygen production. The secondary oxygen supply is provided by burning O
2-producing Vika cartridges (see also ISS ECLSS). Each 'candle' takes 5–20 minutes to decompose at 450–500 °C (842–932 °F), producing 600 litres (130 imp gal; 160 US gal) of O
2. This unit is manually operated.[190]
The US Orbital Segment has redundant supplies of oxygen, from a pressurised storage tank on the Quest airlock module delivered in 2001, supplemented ten years later by ESA-built Advanced Closed-Loop System (ACLS) in the Tranquility module (Node 3), which produces O
2 by electrolysis.[191] Hydrogen produced is combined with carbon dioxide from the cabin atmosphere and converted to water and methane.
Power and thermal control
Main articles: Electrical system of the International Space Station and External Active Thermal Control System
Russian solar arrays, backlit by sunset
One of the eight truss mounted pairs of USOS solar arrays
Double-sided solar arrays provide electrical power to the ISS. These bifacial cells collect direct sunlight on one side and light reflected off from the Earth on the other, and are more efficient and operate at a lower temperature than single-sided cells commonly used on Earth.[192]
The Russian segment of the station, like most spacecraft, uses 28 volt low voltage DC from four rotating solar arrays mounted on Zarya and Zvezda. The USOS uses 130–180 V DC from the USOS PV array, power is stabilised and distributed at 160 V DC and converted to the user-required 124 V DC. The higher distribution voltage allows smaller, lighter conductors, at the expense of crew safety. The two station segments share power with converters.
The USOS solar arrays are arranged as four wing pairs, for a total production of 75 to 90 kilowatts.[193] These arrays normally track the sun to maximise power generation. Each array is about 375 m2 (4,036 sq ft) in area and 58 m (190 ft) long. In the complete configuration, the solar arrays track the sun by rotating the alpha gimbal once per orbit; the beta gimbal follows slower changes in the angle of the sun to the orbital plane. The Night Glider mode aligns the solar arrays parallel to the ground at night to reduce the significant aerodynamic drag at the station's relatively low orbital altitude.[194]
The station originally used rechargeable nickel–hydrogen batteries (NiH
2) for continuous power during the 35 minutes of every 90-minute orbit that it is eclipsed by the Earth. The batteries are recharged on the day side of the orbit. They had a 6.5-year lifetime (over 37,000 charge/discharge cycles) and were regularly replaced over the anticipated 20-year life of the station.[195] Starting in 2016, the nickel–hydrogen batteries were replaced by lithium-ion batteries, which are expected to last until the end of the ISS program.[196]
The station's large solar panels generate a high potential voltage difference between the station and the ionosphere. This could cause arcing through insulating surfaces and sputtering of conductive surfaces as ions are accelerated by the spacecraft plasma sheath. To mitigate this, plasma contactor units (PCU)s create current paths between the station and the ambient plasma field.[197]
ISS External Active Thermal Control System (EATCS) diagram
The station's systems and experiments consume a large amount of electrical power, almost all of which is converted to heat. To keep the internal temperature within workable limits, a passive thermal control system (PTCS) is made of external surface materials, insulation such as MLI, and heat pipes. If the PTCS cannot keep up with the heat load, an External Active Thermal Control System (EATCS) maintains the temperature. The EATCS consists of an internal, non-toxic, water coolant loop used to cool and dehumidify the atmosphere, which transfers collected heat into an external liquid ammonia loop. From the heat exchangers, ammonia is pumped into external radiators that emit heat as infrared radiation, then back to the station.[198] The EATCS provides cooling for all the US pressurised modules, including Kibō and Columbus, as well as the main power distribution electronics of the S0, S1 and P1 trusses. It can reject up to 70 kW. This is much more than the 14 kW of the Early External Active Thermal Control System (EEATCS) via the Early Ammonia Servicer (EAS), which was launched on STS-105 and installed onto the P6 Truss.[199]
Communications and computers
Main articles: Tracking and Data Relay Satellite and Luch (satellite)
See also: ThinkPad § Use in space
Diagram showing communications links between the ISS and other elements.
The communications systems used by the ISS
* Luch satellite and the Space Shuttle are not currently[when?] in use
Radio communications provide telemetry and scientific data links between the station and Mission Control Centres. Radio links are also used during rendezvous and docking procedures and for audio and video communication between crew members, flight controllers and family members. As a result, the ISS is equipped with internal and external communication systems used for different purposes.[200]
The Russian Orbital Segment communicates directly with the ground via the Lira antenna mounted to Zvezda.[6][201] The Lira antenna also has the capability to use the Luch data relay satellite system.[6] This system fell into disrepair during the 1990s, and so was not used during the early years of the ISS,[6][202][203] although two new Luch satellites—Luch-5A and Luch-5B—were launched in 2011 and 2012 respectively to restore the operational capability of the system.[204] Another Russian communications system is the Voskhod-M, which enables internal telephone communications between Zvezda, Zarya, Pirs, Poisk, and the USOS and provides a VHF radio link to ground control centres via antennas on Zvezda's exterior.[205]
The US Orbital Segment (USOS) makes use of two separate radio links mounted in the Z1 truss structure: the S band (audio) and Ku band (audio, video and data) systems. These transmissions are routed via the United States Tracking and Data Relay Satellite System (TDRSS) in geostationary orbit, allowing for almost continuous real-time communications with NASA's Mission Control Center (MCC-H) in Houston.[22][6][200] Data channels for the Canadarm2, European Columbus laboratory and Japanese Kibō modules were originally also routed via the S band and Ku band systems, with the European Data Relay System and a similar Japanese system intended to eventually complement the TDRSS in this role.[22][206] Communications between modules are carried on an internal wireless network.[207]
An array of laptops in the US lab
Laptop computers surround the Canadarm2 console
UHF radio is used by astronauts and cosmonauts conducting EVAs and other spacecraft that dock to or undock from the station.[6] Automated spacecraft are fitted with their own communications equipment; the ATV uses a laser attached to the spacecraft and the Proximity Communications Equipment attached to Zvezda to accurately dock with the station.[208][209]
The ISS is equipped with about 100 IBM/Lenovo ThinkPad and HP ZBook 15 laptop computers. The laptops have run Windows 95, Windows 2000, Windows XP, Windows 7, Windows 10 and Linux operating systems.[210] Each computer is a commercial off-the-shelf purchase which is then modified for safety and operation including updates to connectors, cooling and power to accommodate the station's 28V DC power system and weightless environment. Heat generated by the laptops does not rise but stagnates around the laptop, so additional forced ventilation is required. Laptops aboard the ISS are connected to the station's wireless LAN via Wi-Fi, which connects to the ground via Ku band. This provides speeds of 10 Mbit/s download and 3 Mbit/s upload from the station, comparable to home DSL connection speeds.[211][212] Laptop hard drives occasionally fail and must be replaced.[213] Other computer hardware failures include instances in 2001, 2007 and 2017; some of these failures have required EVAs to replace computer modules in externally mounted devices.[214][215][216][217]
The operating system used for key station functions is the Debian Linux distribution.[218] The migration from Microsoft Windows was made in May 2013 for reasons of reliability, stability and flexibility.[219]
In 2017, an SG100 Cloud Computer was launched to the ISS as part of OA-7 mission.[220] It was manufactured by NCSIST and designed in collaboration with Academia Sinica, and National Central University under contract for NASA.[221]
Operations
Expeditions and private flights
See also the list of International Space Station expeditions (professional crew), space tourism (private travellers), and the list of human spaceflights to the ISS (both).
Zarya and Unity were entered for the first time on 10 December 1998.
Soyuz TM-31 being prepared to bring the first resident crew to the station in October 2000
ISS was slowly assembled over a decade of spaceflights and crews
Each permanent crew is given an expedition number. Expeditions run up to six months, from launch until undocking, an 'increment' covers the same time period, but includes cargo ships and all activities. Expeditions 1 to 6 consisted of 3 person crews, Expeditions 7 to 12 were reduced to the safe minimum of two following the destruction of the NASA Shuttle Columbia. From Expedition 13 the crew gradually increased to 6 around 2010.[222][223] With the arrival of the US Commercial Crew vehicles in the late 2010s, expedition size may be increased to seven crew members, the number ISS is designed for.[224][225]
Gennady Padalka, member of Expeditions 9, 19/20, 31/32, and 43/44, and Commander of Expedition 11, has spent more time in space than anyone else, a total of 878 days, 11 hours, and 29 minutes.[226] Peggy Whitson has spent the most time in space of any American, totalling 665 days, 22 hours, and 22 minutes during her time on Expeditions 5, 16, and 50/51/52.[227]
Travellers who pay for their own passage into space are termed spaceflight participants by Roscosmos and NASA, and are sometimes referred to as space tourists, a term they generally dislike.[note 1] All seven were transported to the ISS on Russian Soyuz spacecraft. When professional crews change over in numbers not divisible by the three seats in a Soyuz, and a short-stay crewmember is not sent, the spare seat is sold by MirCorp through Space Adventures. When the space shuttle retired in 2011, and the station's crew size was reduced to 6, space tourism was halted, as the partners relied on Russian transport seats for access to the station. Soyuz flight schedules increase after 2013, allowing 5 Soyuz flights (15 seats) with only two expeditions (12 seats) required.[233] The remaining seats are sold for around US$40 million to members of the public who can pass a medical exam. ESA and NASA criticised private spaceflight at the beginning of the ISS, and NASA initially resisted training Dennis Tito, the first person to pay for his own passage to the ISS.[note 2]
Anousheh Ansari became the first Iranian in space and the first self-funded woman to fly to the station. Officials reported that her education and experience make her much more than a tourist, and her performance in training had been "excellent."[234] Ansari herself dismisses the idea that she is a tourist. She did Russian and European studies involving medicine and microbiology during her 10-day stay. The documentary Space Tourists follows her journey to the station, where she fulfilled "an age-old dream of man: to leave our planet as a "normal person" and travel into outer space."[235]
In 2008, spaceflight participant Richard Garriott placed a geocache aboard the ISS during his flight.[236] This is currently the only non-terrestrial geocache in existence.[237] At the same time, the Immortality Drive, an electronic record of eight digitised human DNA sequences, was placed aboard the ISS.[238]
Orbit
Graph showing the changing altitude of the ISS from November 1998 until November 2018
Animation of ISS orbit from 14 September 2018 to 14 November 2018. Earth is not shown.
The ISS is maintained in a nearly circular orbit with a minimum mean altitude of 330 km (205 mi) and a maximum of 410 km (255 mi), in the centre of the thermosphere, at an inclination of 51.6 degrees to Earth's equator. This orbit was selected because it is the lowest inclination that can be directly reached by Russian Soyuz and Progress spacecraft launched from Baikonur Cosmodrome at 46° N latitude without overflying China or dropping spent rocket stages in inhabited areas.[239][240] It travels at an average speed of 27,724 kilometres per hour (17,227 mph), and completes 15.54 orbits per day (93 minutes per orbit).[2][14] The station's altitude was allowed to fall around the time of each NASA shuttle flight to permit heavier loads to be transferred to the station. After the retirement of the shuttle, the nominal orbit of the space station was raised in altitude.[241][242] Other, more frequent supply ships do not require this adjustment as they are substantially higher performance vehicles.[28][243]
Orbital boosting can be performed by the station's two main engines on the Zvezda service module, or Russian or European spacecraft docked to Zvezda's aft port. The ATV is constructed with the possibility of adding a second docking port to its aft end, allowing other craft to dock and boost the station. It takes approximately two orbits (three hours) for the boost to a higher altitude to be completed.[243] Maintaining ISS altitude uses about 7.5 tonnes of chemical fuel per annum[244] at an annual cost of about $210 million.[245]
Orbits of the ISS, shown in April 2013
The Russian Orbital Segment contains the Data Management System, which handles Guidance, Navigation and Control (ROS GNC) for the entire station.[246] Initially, Zarya, the first module of the station, controlled the station until a short time after the Russian service module Zvezda docked and was transferred control. Zvezda contains the ESA built DMS-R Data Management System.[247] Using two fault-tolerant computers (FTC), Zvezda computes the station's position and orbital trajectory using redundant Earth horizon sensors, Solar
Crawler crane with telescopic boom, based on the components of the Liebherr LTM 1800 (boom and upper structure) and LR 1550 (crawler undercarriage).
I built this model many years ago. It is still based on the old 9V components with geared and non-geared motors, as well as micromotors.
Motorized functions include:
- Independent drive of left and right crawlers
- Four support rams
- Two support rams on long cantilevered support beams for the erection of long boom systems.
- Slewing of the upper structure
- Four winches
- Independent extension of first and second telescopic boom stage.
- The cab can swing out from transport position
- Auxiliary winch on the front end of the upper structure
Further functions include:
- Variable counterweight of more than 4.5 kg, consisting of 12x250g, 4x285g and a base plate of about 500g
- Openable sliding door on tiltable cab
The crane can be set up with the telescopic boom alone. Height is then up to 2.4m. A luffing jib can be added, but the boom can't be extended in this mode. Height is also somewhere around 2.4m with a reach of about 1.7m.
Here are the "peripheral" components to the DCC installation. The 9V motor bogie was opened up and the motor was electrically isolated from the track pickup. Separate wiring harnesses with 2-pin female connectors were added for the track pick-up and the motor. Two small holes were carefully drilled between the studs for the wires to pass-through and were sealed with 2-part epoxy to prevent movement and chaffing. The headlights required no brick modifications: 3mm white LEDS were simply press fit into an Erling brick and held in place with Blue-tak. The ditchlights required modification of the transparent round plate with the drilling of a small clearance hole in the stud. Also the mounting clip brick required 2 tiny holes to be drilled for wire pass-through.
Original video: www.flickr.com/photos/10063611@N06/8538880832/in/set-7215...
Tripod Components
Roman, first century BC-first century AD
Ash wood and Ivory
Found in the seaside pavilion, 2007
The most recent excavations yielded several pieces of ivory veneered wooden furniture, including tripods (three legged stands). They were probably transported from their original locations by the force of the volcanic eruption. All are adorned with low relief carvings of Baccic themes. One tripod leg represents the god Bacchus himself on the outer face. Elsewhere cupids prepare sacrifices of fruits and pine cones before herms of the god and a satyr. A flaming altar, cymbals, fillets, and a basket are among the other ritual implements depicted.
Now badly damaged, the ivories were likely once painted and gilded. The tripod legs rested on feet in the form of lion's paws and were stabilized by horizontal hoops with reliefs of laurel branches and bucrania (skulls of sacrificial bulls). Whether the tripods held a bowl, a cauldron, or a celestial sphere remains uncertain.
Parco Archeologico di Ercolano, 14, 04, F1, 6-7-14
Ceramic Insulators : Bramdean
We are living through a protracted epidemic of confusion about the difference between artworks and documents. A border is being blurred.
The convergence of Minimalism and the Bechers had given documentary images a secure place in the world of art.
Cruel and tender
Carter Ratcliff
1 June 2003
Belgian Air Component F-16AM FA-84 from 350Sqn in display markings gets airborne from RWY 09 at RAF Fairford for its display at RIAT 2012.
polymer clay tile with layers of color using acrylic paint and inks. Back, sides and work strip is coated in metal paints, patinas - Swellegant productsl
I think I have a new addiction. These crusty, grungy Rustic Components are my latest creation. I'm having fun dreaming up new color combinations to try. I blogged about it here.
Copyright © 2013 by Ginger Davis Allman The Blue Bottle Tree, all rights reserved.
Chair Components of the chair we fabricated for the 'Design for a Living World' exhibition at Cooper Hewitt, developed by the Nature Conservancy, on view May 14, 2009 – January 4, 2010.
1 sheet of 4'x8' plywood yields 3 chairs.
Chair material is FSC A-1 Maple Europly with Bolivian hardwood.
Photograph by Jay Zukerkorn.
Chair design by Abbott Miller / Brian Raby / Pentagram.
Fabrication by Associated Fabrication.
"Eco Smart provides Solar Panels of world class premium brands up to 25 years of manufacturer warranty at wholesale prices. We provide many benefits over our Solar Panels and Components which will foremost bring you a long lasting value of our recommended components.For more information visit www.ecosmart-solar.com
1st Floor, Al Riqqa Building,
Near Clock Tower, Deira,
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DIY Tutorial - make a rolled paper Christmas ornament.
Blogged: www.allthingspaper.net/2013/12/rolled-paper-christmas-orn...
Eco Smart provides Solar Panels of world class premium brands up to 25 years of manufacturer warranty at wholesale prices. We provide many benefits over our Solar Panels and Components which will foremost bring you a long lasting value of our recommended components.For more information visit www.ecosmart-solar.com
1st Floor, Al Riqqa Building,
Near Clock Tower, Deira,
Dubai, U.A.E.
Phone: +971 4 2669986
E-mail: dubai@ecosmart-intl.com
RIAT 2022 Arrivals 14-07-2022
Display Rehearsal
Belgian Air Component
Dynamics F-16AM Fighting Falcon FA-87/19
[Full writeup here.]
Plungercam 2 keeps in the spirit of the original plungercam by using of cheap plumbing equipment and affixing it to precision optics. This iteration eliminates the need for glue altogether, so all the optical components can be easily taken out and re-used elsewhere.
The main component is a rubberized pipe coupling, which I got for $7 at the always awesome Center hardware. The two adjustable steel bands will be used to hold the mount and lens securely in place. This particular one is two inches on the narrow end, and three on the wider end.
To fix the problem with the body cap mount teeth fraying, I decided to replace it with a T-mount T-mount adapter. I picked up the one I'm using for $3 from one of the closing Ritz camera stores.
I'm re using the $12 (from ebay) Zenza bronica medium format lens that was in plungercam 1. Since this was only held in place using a metal clip, it was easy to take it out and re-use it.
Total cost: $22 :)
aztalan.com/: Aztalan Engineering, Inc. has been manufacturing precision machined parts globally for more than 30 years. We specialize in providing precision medical products, as well as precision components manufacturing for the energy, aerospace and defence industries. Call us at (920) 648-3411 or request a quote today.
Kathakali (Malayalam: കഥകളി, kathakaḷi; Sanskrit: कथाकळिः, kathākaḷiḥ) is a stylized classical Indian dance-drama noted for the attractive make-up of characters, elaborate costumes, detailed gestures and well-defined body movements presented in tune with the anchor playback music and complementary percussion. It originated in the country's present day state of Kerala during the 17th century and has developed over the years with improved looks, refined gestures and added themes besides more ornate singing and precise drumming.
HISTORY
Popular belief is that kathakali is emerged from "Krishnanattam", the dance drama on the life and activities of Lord Krishna created by Sri Manavedan Raja, the Zamorin of Calicut (1585-1658 AD). Once Kottarakkara Thampuran, the Raja of Kottarakkara who was attracted by Krishnanattam requested the Zamorin for the loan of a troupe of performers. Due to the political rivalry between the two, Zamorin did not allow this. So Kottarakkara Thampuran created another art form called Ramanattam which was later transformed into Aattakatha. Krishnanaattam was written in Sanskrit, and Ramanattam was in Malayalam. By the end of 17th century, Attakatha was presented to the world with the title 'Kathakali'.
Kathakali also shares a lot of similarities with Krishnanattam, Koodiyattam (a classical Sanskrit drama existing in Kerala) and Ashtapadiyattam (an adaptation of 12th-century musical called Gitagovindam). It also incorporates several other elements from traditional and ritualistic art forms like Mudiyettu, Thiyyattu, Theyyam and Padayani besides a minor share of folk arts like Porattunatakam. All along, the martial art of Kalarippayattu has influenced the body language of Kathakali. The use of Malayalam, the local language (albeit as a mix of Sanskrit and Malayalam, called 'Manipravaalam'), has also helped the literature of Kathakali sound more transparent for the average audience.
As a part of modernising, propagating, promoting and popularizing Kathakali, the International Centre for Kathakali at New Delhi has taken up a continuing project since 1980 of producing new plays based on not only traditional and mythological stories, but also historical stories, European classics and Shakespeare's plays. Recently they produced Kathakali plays based on Shakespeare's Othello and Greek-Roman mythology of Psyche and Cupid.
Even though the lyrics/literature would qualify as another independent element called Sahithyam, it is considered as a component of Geetha or music, as it plays only a supplementary role to Nritham, Nrithyam and Natyam.
KATHAKALI PLAYS
Traditionally there are 101 classical Kathakali stories, though the commonly staged among them these days total less than one-third that number. Almost all of them were initially composed to last a whole night. Nowadays, there is increasing popularity for concise, or oftener select, versions of stories so as the performance lasts not more than three to four hours from evening. Thus, many stories find stage presentation in parts rather than totality. And the selection is based on criteria like choreographical beauty, thematic relevance/popularity or their melodramatic elements. Kathakali is a classical art form, but it can be appreciated also by novices—all contributed by the elegant looks of its character, their abstract movement and its synchronisation with the musical notes and rhythmic beats. And, in any case, the folk elements too continue to exist. For better appreciation, perhaps, it is still good to have an idea of the story being enacted.
The most popular stories enacted are Nalacharitham (a story from the Mahabharata), Duryodhana Vadham (focusing on the Mahabharata war after profiling the build-up to it), Kalyanasougandhikam, (the story of Bhima going to get flowers for his wife Panchali), Keechakavadham (another story of Bhima and Panchali, but this time during their stint in disguise), Kiratham (Arjuna and Lord Shiva's fight, from the Mahabharata), Karnashapatham (another story from the Mahabharata), Nizhalkuthu and Bhadrakalivijayam authored by Pannisseri Nanu Pillai. Also staged frequently include stories like Kuchelavrittam, Santanagopalam, Balivijayam, Dakshayagam, Rugminiswayamvaram, Kalakeyavadham, Kirmeeravadham, Bakavadham, Poothanamoksham, Subhadraharanam, Balivadham, Rugmangadacharitam, Ravanolbhavam, Narakasuravadham, Uttaraswayamvaram, Harishchandracharitam, Kacha-Devayani and Kamsavadham.
Recently, as part of attempts to further popularise the art, stories from other cultures and mythologies, such as those of Mary Magdalene from the Bible, Homer's Iliad, and William Shakespeare's King Lear and Julius Caesar besides Goethe's Faust too have been adapted into Kathakali scripts and on to its stage. Synopsis of 37 kathakali stories are available in kathakalinews.com.
MUSIC
The language of the songs used for Kathakali is Manipravalam. Though most of the songs are set in ragas based on the microtone-heavy Carnatic music, there is a distinct style of plain-note rendition, which is known as the Sopanam style. This typically Kerala style of rendition takes its roots from the temple songs which used to be sung (continues even now at several temples) at the time when Kathakali was born.
As with the acting style, Kathakali music also has singers from the northern and southern schools. The northern style has largely been groomed by Kerala Kalamandalam in the 20th century. Kalamandalam Neelakantan Nambisan, an overarching Kathakali musician of those times, was a product of the institute. His prominent disciples include Kalamandalam Unnikrishna Kurup, Kalamandalam Gangadharan, Kalamandalam P.G. Radhakrishnan, Rama Varrier, Madambi Subramanian Namboodiri, Tirur Nambissan, Kalamandalam Sankaran Embranthiri, Kalamandalam Hyderali, Kalamandalam Haridas, Subramanian, Kalanilayam Unnikrishnan and Kalamandalam Bhavadasan. The other prominent musicians of the north feature Kottakkal Vasu Nedungadi, Kottakkal Parameswaran Namboodiri, Kottakkal P.D. Narayanan Namboodiri, Kottakkal Narayanan, Kalamandalam Anantha NarayananKalamandalam Sreekumar Palanad Divakaran, Kalanilayam Rajendran, Kolathappilli Narayanan Namboodiri, Kalamandalam Narayanan Embranthiri, Kottakkal Madhu, Kalamandalam Babu Namboodiri, Kalamandalam Harish and Kalamandalam Vinod. In the south, some of whom are equally popular in the north these days, include Pathiyur Sankarankutty. Southerner musicians of the older generation include Cherthala Thankappa Panikker, Thakazhi Kuttan Pillai, Cherthala Kuttappa Kurup, Thanneermukkam Viswambharan and Mudakkal Gopinathan.
PERFORMANCE
Traditionally, a Kathakali performance is usually conducted at night and ends in early morning. Nowadays it isn't difficult to see performances as short as three hours or fewer. Kathakali is usually performed in front of the huge Kalivilakku (kali meaning dance; vilakku meaning lamp) with its thick wick sunk till the neck in coconut oil. Traditionally, this lamp used to provide sole light when the plays used to be performed inside temples, palaces or abodes houses of nobles and aristocrats. Enactment of a play by actors takes place to the accompaniment of music (geetha) and instruments (vadya). The percussion instruments used are chenda, maddalam (both of which underwent revolutionary changes in their aesthetics with the contributions of Kalamandalam Krishnankutty Poduval and Kalamandalam Appukutty Poduval) and, at times, edakka. In addition, the singers (the lead singer is called “ponnani” and his follower is called “singidi”) use chengila (gong made of bell metal, which can be struck with a wooden stick) and ilathalam (a pair of cymbals). The lead singer in some sense uses the Chengala to conduct the Vadyam and Geetha components, just as a conductor uses his wand in western classical music. A distinguishing characteristic of this art form is that the actors never speak but use hand gestures, expressions and rhythmic dancing instead of dialogue (but for a couple of rare characters).
ACTING
A Kathakali actor uses immense concentration, skill and physical stamina, gained from regimented training based on Kalaripayattu, the ancient martial art of Kerala, to prepare for his demanding role. The training can often last for 8–10 years, and is intensive. In Kathakali, the story is enacted purely by the movements of the hands (called mudras or hand gestures) and by facial expressions (rasas) and bodily movements. The expressions are derived from Natyashastra (the tome that deals with the science of expressions) and are classified into nine as in most Indian classical art forms. Dancers also undergo special practice sessions to learn control of their eye movements.
There are 24 basic mudras—the permutation and combination of which would add up a chunk of the hand gestures in vogue today. Each can again can be classified into 'Samaana-mudras'(one mudra symbolising two entities) or misra-mudras (both the hands are used to show these mudras). The mudras are a form of sign language used to tell the story.
The main facial expressions of a Kathakali artist are the 'navarasams' (Navarasas in anglicised form) (literal translation: Nine Tastes, but more loosely translated as nine feelings or expressions) which are Sringaram (amour), Hasyam (ridicule, humour), Bhayanakam (fear), Karunam (pathos), Roudram (anger, wrath), Veeram (valour), Beebhatsam (disgust), Adbhutam (wonder, amazement), Shantam (tranquility, peace). The link at the end of the page gives more details on Navarasas.
One of the most interesting aspects of Kathakali is its elaborate make-up code. Most often, the make-up can be classified into five basic sets namely Pachcha, Kathi, Kari, Thaadi, and Minukku. The differences between these sets lie in the predominant colours that are applied on the face. Pachcha (meaning green) has green as the dominant colour and is used to portray noble male characters who are said to have a mixture of "Satvik" (pious) and "Rajasik" (dark; Rajas = darkness) nature. Rajasik characters having an evil streak ("tamasic"= evil) -- all the same they are anti-heroes in the play (such as the demon king Ravana) -- and portrayed with streaks of red in a green-painted face. Excessively evil characters such as demons (totally tamasic) have a predominantly red make-up and a red beard. They are called Red Beard (Red Beard). Tamasic characters such as uncivilised hunters and woodsmen are represented with a predominantly black make-up base and a black beard and are called black beard (meaning black beard). Women and ascetics have lustrous, yellowish faces and this semi-realistic category forms the fifth class. In addition, there are modifications of the five basic sets described above such as Vella Thadi (white beard) used to depict Hanuman (the Monkey-God) and Pazhuppu, which is majorly used for Lord Shiva and Balabhadra.
NOTABLE TRAINING CENTRES & MASTERS
Kathakali artistes need assiduous grooming for almost a decade's time, and most masters are products of accomplished institutions that give a minimum training course of half-a-dozen years. The leading Kathakali schools (some of them started during the pre-Independent era India) are Kerala Kalamandalam (located in Cheruthuruthy near Shoranur), PSV Natya Sangham (located in Kottakal near Kozhikode), Sadanam Kathakali and Classical Arts Academy (or Gandhi Seva Sadan located in Perur near Ottappalam in Palakkad), Unnayi Varier Smaraka Kalanilayam (located in Irinjalakuda south of Thrissur), Margi in Thiruvananthapuram, Muthappan Kaliyogam at Parassinikkadavu in Kannur district and RLV School at Tripunithura off Kochi and Kalabharathi at Pakalkkuri near Kottarakkara in Kollam district, Sandarshan Kathakali Kendram in Ambalapuzha and Vellinazhi Nanu Nair Smaraka Kalakendra in Kuruvattor. Outside Kerala, Kathakali is being taught at the International Centre for Kathakali in New Delhi, Santiniketan at Visva-Bharati University in West Bengal, Kalakshetra in Chennai and Darpana Academy in Ahmedabad among others. PadmaSree Guru Chengannur Raman Pillai mostly known as 'Guru Chengannur'was running a traditional Gurukula Style approach to propagate Kathakali.
‘Guru Chengannur” is ever renowned as the Sovereign Guru of Kathakali. His precision in using symbols, gestures and steps were highest in the field of Kathakali. Guru Chegannur's kaththi vesham, especially the portrayal of Duryodhana enthralled the audience every time he performed. A master of the art, he found immense happiness and satisfaction in the success and recognition of his disciples.
Senior Kathakali exponents of today include Padma Bhushan Kalamandalam Ramankutty Nair, Padma Shri Kalamandalam Gopi, Madavoor Vasudevan Nair, Chemancheri Kunhiraman Nair, Kottakkal Krishnankutty Nair, Mankompu Sivasankara Pillai, Sadanam Krishnankutty, Nelliyode Vasudevan Namboodiri, Kalamandalam Vasu Pisharody, FACT Padmanabhan, Kottakkal Chandrasekharan, Margi Vijayakumar, Kottakkal Nandakumaran Nair, Vazhenkada Vijayan, Inchakkattu Ramachandran Pillai, Kalamandalam Kuttan, Mayyanad Kesavan Namboodiri, Mathur Govindan Kutty, Narippatta Narayanan Namboodiri, Chavara Parukutty, Thonnakkal Peethambaran, Sadanam Balakrishnan, Kalanilayam Gopalakrishnan, Chirakkara Madhavankutty, Sadanam K. Harikumaran, Thalavadi Aravindan, Kalanilayam Balakrishnan, Pariyanampatta Divakaran, Kottakkal Kesavan, Kalanilayam Gopi and Kudamaloor Muralikrishnan. The late titan actor-dancers of Kathakali's modern age (say, since the 1930s) include Pattikkamthodi Ravunni Menon, Chenganoor Raman Pillai, Chandu Panicker, Thakazhi Guru Kunchu Kurup, Padma Shri Kalamandalam Krishnan Nair, Padma Shri Vazhenkada Kunchu Nair, Kavalappara Narayanan Nair, Kurichi Kunhan Panikkar, Thekkinkattil Ramunni Nair, Padma Shri Keezhpadam Kumaran Nair, Kalamandalam Padmanabhan Nair, Mankulam Vishnu Namboodiri, Oyur Kochu Govinda Pillai, Vellinezhi Nanu Nair, Padma Shri Kavungal Chathunni Panikkar, Kudamaloor Karunakaran Nair, Kottakkal Sivaraman, Kannan Pattali, Pallippuram Gopalan Nair, Haripad Ramakrishna Pillai, Champakkulam Pachu Pillai, Chennithala Chellappan Pillai, Guru Mampuzha Madhava Panicker, and Vaikkom Karunakaran.
Kathakali is still hugely a male domain but, since the 1970s, females too have made entry into the art form on a recognisable scale. The central Kerala temple town of Tripunithura has, in fact, a ladies troupe (with members belonging to several part of the state) that performs Kathakali, by and large in Travancore.
KATHAKALI STYLES
Known as Sampradäyaṃ(Malayalam: സമ്പ്രദായം); these are leading Kathakali styles that differ from each other in subtleties like choreographic profile, position of hand gestures and stress on dance than drama and vice versa. Some of the major original kathakali styles included:
Vettathu Sampradayam
Kalladikkodan Sampradyam
Kaplingadu Sampradayam
Of late, these have narrowed down to the northern (Kalluvazhi) and southern (Thekkan) styles. It was largely developed by the legendary Pattikkamthodi Ravunni Menon (1881-1949) that is implemented in Kerala Kalamandalam (though it has also a department that teaches the southern style), Sadanam, RLV and Kottakkal. Margi has its training largely based on the Thekkan style, known for its stress on drama and part-realistic techniques. Kalanilayam, effectively, churns out students with a mix of both styles.
OTHER FORMS OD DANCE & OFFSHOOTS
Kerala Natanam is a kind of dance form, partly based on Kathakali techniques and aesthetics, developed and stylised by the late dancer Guru Gopinath in the mid-20th century. Kathakali also finds portrayal in Malayalam feature films like Vanaprastham, Parinayam, Marattam, and Rangam. Besides documentary films have also been shot on Kathakali artistes like Chenganoor Raman Pillai, Kalamandalam Krishnan Nair, Keezhpadam Kumaran Nair, Kalamandalam Ramankutty Nair, Kalamandalam Gopi and Kottakkal Sivaraman.
As for fictional literature, Kathakali finds mention in several Malayalam short stories like Karmen (by N.S. Madhavan) and novels like Keshabharam (by P.V. Sreevalsan). Even the Indo-Anglian work like Arundhati Roy's Booker prize-winning The God of Small Things has a chapter on Kathakali, while, of late, Anita Nair's novel, Mistress, is entirely wrapped in the ethos of Kathakali.
Similar musical theater is popular in Kasaragod and the coastal and Malenadu regions of Karnataka, viz. Yakshagana. Though Yakshagana resembles Kathakali in terms of its costume and makeup to an extent, Yakshagana is markedly different from Kathakali as it involves dialogues and method acting also the narration is in Kannada, wherein philosophical debates are also possible within framework of the character. As per records the art form of Yakshagana was already rooted and well established at the time of Sri Manavedan Raja. There is possibilities of its significant influence in formation of Kathakkali as the troupe of performers of "Krishnanattam" designed the basic costume of the art form already established in other parts of south India including Males playing the female roles (until more recently).
Kottayam thamburan's way of presenting kathakali was later known as Kalladikkoden sambradayam. Chathu Paniker,the introducer of Kallikkoden Sambrathayam, stayed in Kottayam for five years with Kottayam Thamburan's residence and practiced Kalladikkoden Sambrathayam. Then he returned to his home place. After a short period Chathu Paniker reached Pulapatta as instructed by Kuthiravattath nair. That was around the year ME 865. Many deciples from Kadathanadu, Kurumbra nadu, Vettathu nadu, Palakkadu and Perumpadappu studied kathakali(Kalladikkoden Sambrathayam ) By that time Chathu Paniker was an old man. Some years later he died from Pulapatta.
NOTED KATHAKALI VILLAGES & BELTS
There are certain pockets in Kerala that have given birth to many Kathakali artistes over the years. If they can be called Kathakali villages (or some of them, these days, towns), here are some of them: Vellinezhi, Kuruvattoor, Karalmanna, Cherpulassery, Kothachira, peringode, sreekrishnapuram Kongad and Ottapalam in Palakkad district, Vazhenkada in Malappuram district, Thichur or Tichoor, Guruvayur, Thiruvilwamala and Irinjalakuda in Thrissur district, Tripunithura, Edappally, Thekkan Chittoor in Ernakulam district and Kuttanad, Harippad belt in Alappuzha district besides places in and around Thiruvanathapuram in south Travancore and Payyannur in north Malabar.
AWARDS FOR KATHAKALI ARTISTS
Sangeet Natak Akademi Awardees - Kathakali (1956–2005)
Nambeesan Smaraka Awards—For artistic performances related kathakali{1992-2008}
KATHAKALI ATTAMS (ELAKI ATTAMS)
Attams or more specifically "elaki attams" are sequences of acting within a story acted out with the help of mudras without support from vocal music. The actor has the freedom to change the script to suit his own individual preferences. The actor will be supported ably by Chenda, Maddalam, and Elathalam (compulsory), Chengila (not very compulsory).
The following are only some examples. 'Kailasa Udharanam' and 'Tapas Attam' are very important attams and these are described at the end. Two of the many references are Kathakali Prakaram, pages 95 to 142 by Pannisheri Nanu Pillai and Kathakaliyile Manodharmangal by Chavara Appukuttan Pillai.
VANA VARNANA: BHIMA IN KALYANA SAUGANDHIKA
Modern man looks at the forest, indeed the birthplace of primates, with a certain wonder and a certain respect. Kathakali characters are no exception.
When Pandavas were living in the forest, one day, a flower, not seen before, wafted by the wind, comes and falls at the feet of Panchali. Exhilarated by its beauty and smell, Panchali asks Bhima to bring her more such flowers. To her pleasure Bhima is ready to go at once. But Panchali asks him what he shall do for food and drink on the way. Bhima thinks and says "Food and Drink! Oh, this side glance (look) of yours. This look of longing. This look of anticipation. The very thought fills me up. I don't need any food and drink at all. Let me go." He takes his mace and off he goes. Ulsaham (enthusiasm) is his Sdhayi Bhavam (permanent feature).
"Let me go at once in search of this flower," says Bhima. "The scented wind is blowing from the southern side. Let me go that way." After walking some distance he sees a huge mountain called Gandhamadana and three ways. He decides to take the middle one which goes over the mountain. After going further "The forest is getting thicker. Big trees, big branches in all directions. The forest looks like a huge dark vessel into which even light can not penetrate. This is my (Bhima's) way. Nothing can hinder me." So saying he pulls down many trees. Sometimes he shatters the trees with his mace. Suddenly he sees an elephant. "Oh! Elephant." He describes it. Its trunk. Sharp ears.
The itching sensation in the body. It takes some mud and throws on the body. Oh good. Then it sucks water and throws on the body. Somewhat better. Slowly it starts dosing even though alert at times. A very huge python is approaching steadily. Suddenly it catches hold of the elephant's hind leg. The elephant wakes up and tries to disengage the python. The python pulls to one side. The elephant kicks and drags to the other side. This goes on for some time. Bhima looks to the other side where a hungry lion is looking for food. It comes running and strikes the elephants head and eats part of the brain and goes off. The python completes the rest. "Oh my god, how ruthless!" says Bhima and proceeds on his way.
UDYANA VARNANA: NALA IN NALACHARITHAM SECOND DAY
Descriptions of gardens are found in most dance forms of India and abroad. These are also common in Kathakali.
Newly married Nala and Damayanthi are walking in the garden. When Nala was lovingly looking at Damayanthi a flower falls on her. Nala is overjoyed and thinks that this is a kindness nature has shown on his wife. Nala says "On seeing the arrival of their queen, the trees and climbers are showing happiness by dropping flowers on you." He tells her, "See that tree. When I used to be alone the tree used to hug the climber and seemingly laugh at my condition." Then he looks at the tree and says, "Dear Tree, look at me now. See how fortunate I am with my beautiful wife."
Both wander about. A bumblebee flies towards Damayanthi. Immediately Nala protects her face with a kerchief. He looks at the bee and then at Damayanthi. He says, "On seeing your face the bee thought it was a flower and came to drink the nectar." Nala and Damayanthi listen to the sounds coming out of the garden. Damayanti says, "It appears that the whole garden is thrilled. The flowers are blooming and smiling. Cuckoos are singing and the bees are dancing. Gentle winds are blowing and rubbing against our bodies. How beautiful the whole garden looks." Then Nala says that the sun is going down and it is time for them to go back and takes her away.
SHABDA VARNANA: HANUMAN IN KALYANA SAUGANDHIKAM
While Bhima goes in search of the flower, here Hanuman is sitting doing Tapas with mind concentrated on Sri Rama.
When he hears the terrible noises made by Bhima in the forest he feels disturbed in doing his Tapas. He thinks "What is the reason for this?" Then the sounds become bigger. "What is this?" He thinks, "The sounds are getting bigger. Such a terrible noise. Is the sea coming up thinking that the time is ripe for the great deluge (Pralaya). Birds are flying helter-skelter. Trees look shocked. Even Kali Yuga is not here. Then what is it? Are mountains quarreling with each other? No, That can't be it. Indra had cut off the wings of mountains so that they don't quarrel. Is the sea changing its position? No it can't be. The sea has promised it will not change its position again. It can't break the promise." Hanuman starts looking for clues. "I see elephants and lions running in fear of somebody. Oh a huge man is coming this way. Oh, a hero is coming. He is pulling out trees and throwing it here and there. Okay. Let him come near, We will see."
THANDEDATTAM: RAVANA IN BALI VADHAM
After his theranottam Ravana is seen sitting on a stool. He says to himself "I am enjoying a lot of happiness. What is the reason for this?" Thinks. "Yes I know it. I did Tapas to Brahma and received all necessary boons. Afterwards I won all ten directions. I also defeated my elder brother Vaishravana. Then I lifted Kailas mountain when Siva and Parvathi were having a misunderstanding. Parvathi got frightened and embraced Siva in fear. Siva was so happy he gave a divine sword called Chandrahasa. Now the whole world is afraid of me. That is why I am enjoying so much happiness." He goes and sits on the stool. He looks far away. "Who is coming from a distance. he is coming fast. Oh, it is Akamba. Okay. Let me find out what news he has for me."
ASHRAMA VARNANA: ARJUNA IN KIRATHAM
Arjuna wants to do Tapas to Lord Siva and he is looking a suitable place in the Himalayan slopes. He comes to place where there is an ashram. Arjuna looks closely at the place. "Oh. What a beautiful place this is. A small river in which a very pure water is flowing. Some hermits are taking baths in the river. Some hermits are standing in the water and doing Tapsas. Some are facing the Sun. Some are standing in between five fires." Arjuna salutes the hermits from far. He says to himself "Look at this young one of a deer. It is looking for its mother. It seems to be hungry and thirsty. Nearby a female tiger is feeding its young ones. The little deer goes towards the tigress and pushes the young tiger cubs aside and starts drinking milk from the tigress. The tigress looks lovingly at the young deer and even licks its body as if it were its own child. How beautiful. How fulfilling."
Again he looks "Here on this side a mongoose and a serpent forgetting their enmity are hugging each other. This place is really strange and made divine by saints and hermits. Let me start my Tapas somewhere nearby."
A sloka called "Shikhini Shalabha" can be selected instead of the above if time permits.
AN ATTAM BASED ON A SLOKA
Sansrit slokas are sometimes shown in mudras and it has a pleasing and exhilarating effect. Different actors use slokas as per his own taste and liking. However, the slokas are taught to students during their training period. An example is given below.
Kusumo Kusumolpatti Shrooyathena Chathushyathe
Bale thava Mukhambuje Pashya Neelolpaladwayam
Meaning a flower blooming inside another flower is not known to history. But, my dear, in your lotus like face are seen two blue Neelolpala flowers (eyes).
A CONVERSATION BASED ON A SLOKA
Sanskrit slokas can also be used to express an intent. One such example is a sloka used by Arjuna addressed to Mathali the charioteer in Kalakeya Vadham. Sloka:
Pitha: Kushalee Mama hritha Bhujaam
Naatha Sachee Vallabha:
Maatha: kim nu Pralomacha Kushalinee
Soonurjayanthasthayo
Preethim va Kushchate Thadikshnavidhow
Cheta Samutkanuthe
Sutha: tvam Radhamashu Chodaya vayam
Dharmadivam Mathala
Meaning: The husband of Indrani and the lord of gods my father - Is he in good health? His son Jayantha - Is he strictly following the commands of his father? Oh, I am impatient to see all of them.
SWARGA VARNANA: ARJUNA IN KELAKEYA VADHAM
Arjuna goes to heaven on the invitation of his father, Indra. After taking permission from Indrani he goes out to see all the places in Swarga. First he sees a building, his father's palace. It is so huge with four entrances. It is made of materials superior to gold and jewels of the world. Then he goes ahead and sees Iravatha. Here he describes it as a huge elephant with four horns. He is afraid to touch it. Then he thinks that animals in Swarga can't be cruel like in the world and so thinking he goes and touches and salutes Iravatha. He describes the churning of the white sea by gods and demons with many details and how Iravatha also came out of the white sea due to this churning.
He walks on and sees his father's (Indra's) horse. It is described as being white and its mane is sizzling like the waves of the white sea from which it came. He touches and salutes the horse also. Then he goes to see the river of the sky (or milky way). He sees many birds by this river and how the birds fly and play is shown.
Then he sees the heavenly ladies. Some are collecting flowers, and one of them comes late and asks for some flowers for making garland. The others refuse. She goes to the Kalpa Vriksha and says "please give me some flowers." Immediately a shower of flowers occurs which she collects in her clothes and goes to make garlands chiding the others. "See... I also got flowers." After this he sees the music and dance of the heavenly ladies. First it starts with the adjustments of instruments Thamburu, Mridangam, Veena. Then the actual music starts along with the striking of cymbals. Then two or three types of dances are shown. Then comes juggling of balls. It is described by a sloka thus:
Ekopi Thraya Iva Bhathi Kandukoyam
Kanthayaa: Karathala Raktharaktha:
Abhrastho Nayanamareechi Neelaneelo
Popular belief is that kathakali is emerged from "Krishnanattam", the dance drama on the life and activities of Lord Krishna created by Sri Manavedan Raja, the Zamorin of Calicut (1585-1658 AD). Once Kottarakkara Thampuran, the Raja of Kottarakkara who was attracted by Krishnanattam requested the Zamorin for the loan of a troupe of performers. Due to the political rivalry between the two, Zamorin did not allow this. So Kottarakkara Thampuran created another art form called Ramanattam which was later transformed into Aattakatha. Krishnanaattam was written in Sanskrit, and Ramanattam was in Malayalam. By the end of 17th century, Attakatha was presented to the world with the title 'Kathakali'. Kathakali also shares a lot of similarities with Krishnanattam, Koodiyattam (a classical Sanskrit drama existing in Kerala) and Ashtapadiyattam (an adaptation of 12th-century musical called Gitagovindam). It also incorporates several other elements from traditional and ritualistic art forms like Mudiyettu, Thiyyattu, Theyyam and Padayani besides a minor share of folk arts like Porattunatakam. All along, the martial art of Kalarippayattu has influenced the body language of Kathakali. The use of Malayalam, the local language (albeit as a mix of Sanskrit and Malayalam, called ), has also helped the literature of Kathakali sound more transparent for the average audience. As a part of modernising, propagating, promoting and popularizing Kathakali, the International Centre for Kathakali at New Delhi has taken up a continuing project since 1980 of producing new plays based on not only traditional and mythological stories, but also historical stories, European classics and Shakespeare's plays. Recently they produced Kathakali plays based on Shakespeare's Othello and Greek-Roman mythology of Psyche and Cupid.
Even though the lyrics/literature would qualify as another independent element called Sahithyam, it is considered as a component of Geetha or music, as it plays only a supplementary role to
Bhumau Talcharana Naghamshu Gaurgaura:
Meaning One ball looks like three balls. When it is in the hands of the juggler, it takes the redness of the hands, when it goes up it takes the blueness of the eyes, when it strikes the ground it becomes white from the whiteness of the leg nails. Once a juggled ball falls down. Then she, the juggler, somehow manages to proceed and remarks "See.. how I can do it".
At one time a garment slips from a lady's body and she adjusts the cloth showing shameful shyness (Lajja). Then the ladies go in for a Kummi dance. As Arjuna was enjoying this dance, suddenly somebody calls him. Arjuna feels scared. "Oh God, where am I?" he says and beats a hasty retreat.
TAPAS ATTAM: RAVANA IN RAVANA ULBHAVAM
[Background: Mali, Sumali and Malyavan were three brothers ruling Sri Lanka. During a war between them and Indra, Indra requested help from Lord Vishnu and as a consequence Lord Vishnu killed Mali. Sumali and Malyavan escaped to Patala. Kaikasi was the daughter of Sumali. She wandered in the forest. She belong three boys through a great sage called Vishravassu. (Vishravassu had an earlier son called Vaishravana who became the richest among all people.) The eldest boy of Kaikasi was Ravana followed by Kumbhakarna and Vibhishana.]
SCENE 1
When Ravana was a young boy (Kutti Ravana vesham), one day he was sleeping on his mothers lap in a place called madhuvanam. At that time Kaikasi sees Vaishravana flying overhead in his vimana (mythical aeroplane). She thinks “Oh, that is Vaishravana, technically a brother of my son who is sleeping on my lap. He is rich and strong. My son is so poor and weak. While thinking thus a drop of tear from her eyes drops on Ravana’s face. Ravana suddenly wakes up and sees his mother crying. When he knew the reason he could not bear it. He says he is going to do tapas to Brahma to get boons so that he will be strong and rich.
SCENE 2
(The tapas itself is shown as a part of autobiographical narration of adult ravana)
Ravana (adult Ravana, not kutti Ravana) is sitting on a stool. He thinks “Why am I so happy? How did I become so rich and strong? Oh yes. It is because of the tapas I did. What made me do the tapas? When I was a young boy, one day I was sleeping on my mother’s lap in a place called Madhuvanam. A drop of tear from her eyes falls on my face. I asked her why she was crying. She said she saw Vaishravana flying overhead in his vimana (plane). She told me Vaishravan was a brother of mine now flying in a plane. He is rich and strong. I am so poor and weak. When I heard this comparison between me and my brother, I could not bear it. I am going to do tapas to Brahma to get boons so that I will be strong and rich.
I made five different types of fires (while doing tapas gods are approached through Agni the god of fire). Then I started my tapas. I asked my brothers to stand guard and also keep the fires burning. Then I fully concentrated on tapas. Time passed but Brahma did not appear. I looked. Why is Brahma not appearing? I doubled my concentration. Time passed. Brahma is not appearing. Still not appearing? I cut one of my heads and put it in the fire. Waited, Brahma did not come. One more head rolls. Still no Brahma comes. Heads roll and roll. No Brahma. Only one head is left. First I thought of stopping my tapas. But no! Never! That will be an insult to me and my family. It is better to die than stop. Also when I die Brahma will be judged as being partial. With great determination I swung the sword at my last neck, when, lo and behold, suddenly Brahma appeared and caught my hand. I looked at him with still un-subsided, but gradually subsiding anger. Brahma asked me what boons I wanted. I asked for a boon that I should win all the worlds and have all the wealth and fame and that I should not be killed except by man. I also asked him to give boons for my brothers.
In the next scene Ravana asks Kumbhakarna and Vibhishana what boons they got. Unfortunately Kumbhakarna’s tongue got twisted while asking for boon and he got ‘sleep’ instead of becoming the ‘king of gods’. Ravana laughed it off. As for Vibhishana, he being a bhaktha of Vishnu, asked for Vishnu’s blessings and got it. Ravana laughs it off and also decides to conquer all the worlds and starts preparing his grand army for the big conquest of the worlds.
[This method of presentation with a peculiar sequence has a tremendous dramatic affect. The main actor redoes a small part of what happened to kutti Ravana vesham, and this gives a view of the high contrast between the boy and the man Ravana. Similarly the presence of Kumbhakarna and Vibhishana in the subsequent scene offers a good smile on the face of the viewer at the end of the play.]
KAILASA UDDHARANAM: RAVANA IN BALI VIJAYAM
[Background and Previous scene: After receiving the boons, and widening his kingdom in all directions, Ravana lives in Sri Lanka with great pomp and splendor. One day he sees Saint Narada approaching his palace singing songs in praise of him ‘Jaya jaya Ravana, Lanka Pathe’. Happily he receives Narada and seats him next to him. After telling Narada about the victory of his son Indrajith on Indra, Ravana tells Narada “Now there is nobody on earth or other worlds who can fight with me”. To this Narada replies “ Very true indeed, but there is one huge monkey called Bali who says he can defeat you. He even said that you are just like a blade of grass to him. Well let him say what he wants. You are unbeatable.” Then Narada says ‘let us go there and see him’. Both decide to go. But Ravana takes his famous sword called “Chandrahasam”. Then Narada asks the history of this sword. Ravana’s Attam Starts.]
Ravana says “I received this sword from Lord Siva. It happened thus. Once when I was conquering new places and expanding my empire I happened to be going across the Kailasa mountain. The plane got stuck on the mountain unable to move forward. I got down from the plane and looked at the mountain. (Looks from one end to the other first horizontally and then vertically.) So huge it was. Then I decided to lift it with my bare hand and keep it aside and move forward. I started sticking my hands under it one by one. Then I tried to lift it. It doesn’t move. I put more force and more force. It moved just a bit. I pushed harder and harder, slowly it started moving then again and again and it moved easily. Then I lifted it up with my hands and started juggling it (exaggeration evident).
“At that particular time Lord Siva was quarreling with his wife Parvathi. Why did they fight? The story is as follows. Parvathi had gone for enjoying swimming and bathing in some beautiful pond. At that time Siva opened his jata (disheveled long hair) and called Ganga for some entertainment after asking Ganapathi and Subramania to go for some errands. Somehow becoming suspicious, right at that time, Parvathi came back in a hurry with wet clothes and saw Siva with Ganga. Siva was wondering what to do and it was at that time that Ravana started lifting the Kailasa. When Kailasa started shaking Parvathi got scared and ran to Siva and hugged him. So the quarrel ended and Siva was happy. “As a reward Siva called me and gave me this famous Chandrahasa sword.”
Then Narada and Ravana leave to meet Bali. Ravana wanted to take the sword along with him, but Narada suggested that the sword is not required for teaching a lesson to Bali who is after all an unarmed monkey.
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