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Newly built DIY version of Varipower module using rotary switch and precision resistors with a range of max to -5.5 stops.
Strobist info: Light tent. One Vivitar 283 outside, camera left, set to 1/64 power using Varipower module. Second Vivitar 283 outside, camera right, set to 1/64 power using Varipower module.
Format: Digitalfoto
Dato / Date: 7 Juli 2005
Fotograf / Photographer: Tor Arne Granmo
Sted / Place: Dora 1, Maskinistgata 1, Trondheim
Eier / Owner Institution: Trondheim byarkiv, The Municipal Archives of Trondheim
Lenke / Link: Dora (Wikipedia)
Arkivreferanse / Archive reference: Tor.Hxx.Bxx.Fxxxx
Merknad: På Nyhavna ligger ubåtbunkerne bygget under andre verdenskrig av tyskernes Organisation Todt, Einsatzgruppe Wiking. Dora 1 ble ferdig i 1943 og ble brukt som dokk for Kriegsmarinens ubåter som skulle overhales eller repareres. Dora 1 ble etter krigen ombygd til sivile formål, og fikk etter hvert to nye etasjer.
Byggherre Reinertsen A/S brukte flere måneder på å sprenge seg igjennom de massive og tungt armerte betongveggene i krigsmonumentet DORA 1. Flere biler ble skadd ved en anledning, og til slutt måtte man skjære seg igjennom stålet og betongen.
Hullet fungerer nå som bindeledd mellom det eksterne administrasjonsbygget og arkivmagasinene inne i DORA.
FLARE
kinetic ambient reflection membrane
FLARE is a pneumatic building facade system. The FLARE system consists of a number of tiltable metal flake bodies. An infinite array of flakes can be mounted on any building or wall surface in a modular system of multiplied 4x4 FLARE units. Each metal flake reflects the bright sky or sunlight when in vertical standby position. When the flake is tilted downwards by a computer controlled pneumatic piston, its face is shaded from the sky light and this way appears as a dark pixel. By reflecting ambient or direct sunlight the individual flakes of the FLARE system act like pixels formed by natural light. The system is controlled by a computer to form any kind of surface animation. Sensor systems inside and outside the building communicate the buildings activity directly to the FLARE system which acts as the buildings lateral line. FLARE turns the building facade into a penetrable membrane, breaking with all conventions of the building surface as a static skin.
manufacturer: WHITEvoid interactive art & design Berlin
materials: aluminium, pneumatic pistons
special features: computer controllable, DMX protocol
country: Germany
e-mail: flare@whitevoid.com
website: www.flare-facade.com / www.whitevoid.com
This is an actual lunar module, one of 12 built for Project Apollo. It was meant to be used in low Earth orbit to test the techniques of separation, rendezvous, and docking with the command and service module. The second of two such test vehicles, its mission was cancelled because of the complete success of the first flight.
The lunar module had two stages. The descent (lower) stage was equipped with a rocket motor to slow the rate of descent to the lunar surface. It contained exploration equipment and remained on the Moon when the astronauts left. The ascent (upper) stage contained the crew compartment and a rocket motor to return the astronauts to the orbiting command module. After the crew entered the command module for the trip back to Earth, the lunar module was released and eventually crashed into the Moon.
National Air and Space Museum
The National Air and Space Museum of the Smithsonian Institution holds the largest collection of historic aircraft and spacecraft in the world in 14,970.9 m2 of exhibition floor space. It was established in 1946, as the National Air Museum, and opened its main building in 1976. Located in Washington, D.C., United States, it is a center for research into the history and science of aviation and spaceflight, as well as planetary science and terrestrial geology and geophysics. Almost all space and aircraft on display are originals or backups to the originals.
SPI module ready, Only a few tests to be done and then installed in a small black box.
SPI clock: 500 KHz
Refresch time scan min : 52 usec
Inputs: 24, 3K3 pullups, 12 inputs with 10nF filter.
Input Levels: TTL or 5V
Power to input devices: 5V
Double rotating module and built-in electronics.
This module is intended as an extension to the Fischertechnik building blocks. This is a compact unit with double rotation. Each stage has a built-in quadrature decoder and home point detection. Hall detectors are used for this. The big advantage of this hall AH3144E is that it works on a voltage from 4.5V to 24V and is therefore compatible with most hardware. The output is an open collector type. Each stage is powered by an XS motor 9V.
The upper axis has a pivoting block with 20 teeth. The gear profile is adapted to work with the worm gear of FT without much backlash. On the contours of this rotating block are small holes provided to apply a neodymium magnet D2x3mm. This magnet serves as a home point for calibration. On the worm shaft is a small disk encoder with 5 magnets. Through quadrature detection you get 20 pulses per revolution. The angle adjustment accuracy of the pivot block is therefore 1/400 or 0.9 degrees. The total angular rotation is slightly more than 180 degrees. The lower turntable has a gear with 44 teeth. It can rotate the full 360 degrees. The accuracy here is 1/880 = 0.41 degrees. The worm shaft also has an encoder disk with 5 magnets (20 pulses/rotation). The encoder disc is adapted to the worm so that it cannot slip on the shaft. All necessary .stl files are available here.
I tested all parts, mounted the hall detectors and measured the signals. The quadrature detection automatically possesses the correct 90 degree phase shift. You don't have to adjust anything. The XS motor is used with its standard reduction block and has about 140 revolutions/minute on the worm (2.35 rec/sec). An encoder pulse corresponds to about 21 msec. Your quadrature decoder must therefore be able to process the pulses within these 21 msec, or even better 15 msec because there is always a small deviation possible (phase shift is 90° +/- 20%).
On the upper rotation arm I mounted an original FT grip module. The intention is to replace this grip module with a more compact version with built-in electronics.
3D printer settings:
I always use PolyMaker polyMax PLA filament. This filament is much stronger than the normal PLA, even stronger than ABS. The printed pieces are very clean and the parts slide gently over each other. The tolerances are very good and very little finishing is required. For some parts you do need to use supports. Brim or Raft are not needed. I don't have a heated table but keep the printing plate under warm water for a while before printing. On my FlashForge Finder I use the Standard settings with a temperature of 210°.
ThingIverse stl files: www.thingiverse.com/thing:3456823
Ever want to build a S.H.I.P? Never have the pieces? Thats me. Then I thought " well if moonabase can be assembled by multiple people, why couldn't a ship?
Description:
We design, develop, manufacture and sell variety of monocrystalline modules ranging from 5 W to 290 W in power output, built to general specifications for use in a wide range of on-grid and off-grid residential, commercial, industrial and other solar power generation systems.
To assemble solar modules, we interconnect multiple solar cells by taping and stringing the cells into a desired electrical configuration. The interconnected cells are laid out, laminated in a vacuum, cured by heating and then packaged in a protective light-weight aluminum frame. Once sealed, our solar modules become weatherproofed and are able to withstand high levels of ultraviolet radiation and moisture.
Our 220W series modules conform to IEC61215 and IEC61730 electrical and quality standards. With continuous commitment to research and design, our engineers work every day to improve quality, efficiency and reliability of our modules. Manufactured under ISO9001 and ISO14000 certified conditions, our modules are engineered to withstand extreme temperatures and harsh weather conditions.
Product benefits
Applies to commercial, residential and utility scale applications
Easily installed ground, roof, building face or tracking system
Smart choice for on-grid and off-grid applications
Reduces electricity bill and creates energy independence
Modular, no moving parts, fully scalable and easily installed
Reliable and virtually maintenance-free power generation
Helps environment by reducing air, water and land pollution
Provides clean, quiet and reliable electricity generation
Increases resale value of the property the day installed
Product features
High powered modules from 165W to 290W, providing solutions for variety of applications.
All modules designed and manufactured at an ISO 9001 certified and ISO14000 factory.
Modules are IEC61730 safety rated for high wind pressure, hail impact, snow load and fire.
Integrated bypass diodes to protect the solar cell circuit from hot spots during partial shadowing.
Anodized aluminum frame improves load resistance capabilities for heavy wind loads.
Our module technology ensures there are no problems of water freezing and warping.
Low power tolerance of +/-3% helps higher output power, by reducing module string mismatch losses.
High efficiency 156x156mm photovoltaic cells technology for improved performance and reliability, its efficiency reach to 17.25%.
Highly transparent, low-iron, and tempered glass and antireflective coating increases energy yield.
New eco-friendly packaging minimizes cardboard waste and requires less transportation and storage space.
The Orion crew and service module stack for Artemis I was lifted out of the Final Assembly and Test (FAST) cell on Monday, November 11. The spacecraft has been stationed in the FAST cell since July 2019 for mating and closeout processing.
The service module and crew module were moved separately into the cell, stacked and connected together for the mission.
After lifting out of the cell, Orion will be attached to a tool called a verticator that rotates the stack from its vertical configuration to a horizontal configuration for transport to NASA’s Plum Brook Station in Sandusky, Ohio, USA, where it will undergo full environmental testing to certify the complete vehicle for flight.
Once the vehicle returns to NASA's Kennedy Space Centre it will return to the FAST cell for installation of final panels left off for environmental testing purposes and the service module’s four solar arrays.
Credit: NASA–Rad Sinyak
Le programme Apollo de la NASA, visant à poser un homme sur la Lune avant la fin 1970, est lancé par le président américain Kennedy le 25 mai 1961, essentiellement pour des raisons de prestige et de politique internationale. En effet, les succès de l'astronautique soviétique, qui vient de réussir un grand nombre de premières spatiales depuis le début de l'ère spatiale (premier satellite artificiel, première sonde spatiale, premier homme dans l'espace), portent un coup à l'image de puissance dominante des États-Unis, alors que la guerre froide entre les deux superpuissances bat son plein. Les dirigeants soviétiques ne relèvent pas le défi spatial américain en partie parce qu'ils sous-estiment la capacité de la NASA à rattraper son retard. Dès 1960, Sergueï Korolev, à l'origine des succès les plus éclatants de l'astronautique soviétique, commence pourtant à concevoir une mission lunaire reposant sur le développement de la fusée géante N-1, mais son projet n'obtient aucun soutien. Toutefois, avec trois ans de retard sur les américains, le dirigeant soviétique Khrouchtchev décide, en constatant les progrès de la NASA, de lancer le 3 août 1964 le Programme lunaire habité soviétique. Pour disposer d'un lanceur suffisamment puissant, Korolev réclame le développement de moteurs cryogéniques performants (c'est-à-dire utilisant de l'hydrogène liquide, comme ceux en cours de développement aux États-Unis), mais il se heurte au refus de Valentin Glouchko, qui possède un quasi-monopole sur la fabrication des moteurs-fusées de forte puissance. En l'absence d'alternative immédiatement disponible, Korolev doit utiliser des moteurs beaucoup moins performants : la capacité du lanceur N-1, utilisé pour placer en orbite les vaisseaux lunaires soviétiques, est seulement 70 % celle de la fusée Saturn V jouant un rôle équivalent pour la Lune.
The day started sunny and calm, but by the time I had done my chores it was cloudy and windy so didn't go on my planned excursion to a waterfall.
Decided to have my first go at Camera School Module 3 indoors. As it was cloudy outside, it was even darker inside and it was impossible to get the degree of blurred water, yet showing a sense of movement, with the recommended CS settings. I found around 1/15-1/30 portrayed this best, but to achieve this a high ISO, coupled with a small F number was required. Another difficulty I had was with the large dynamic range between the dark sink/tiles, and the bright water and the need for a reflector which lightened the darker bits, but also blew the highlights. An ND filter was not required in these dull conditions.
I won't therefore be using any of these shots for homework, but put them up as my first venture into this module. On a bright day this setup might work and I might give it another go.
Neon modules before installation.
Warszawa, Kępa Potocka, October 24th, 2009
Digital, Mark II, 24-70 Canon Zoom Lens, 21 MgPx
neon executed by Jacek Hanak & his Team Reklama Sp. z O.O.
N scale town module -- various kits
One of my favourite places in this module -- the steps leading up to the Market Square.
N scale town module -- various kits
My only regret is that the escapement should have more of a slope and be less vertical.
The plastic guard was there so the trains don't fall off into the abyss during display by accident. I probably shouldn't build it so close to the edge anyway. Depends what I'm doing with this module I may extend out anyway, who knows.
From left to right: Oliver Juckenhöfel, Airbus, Mark Kirasich, NASA, Mike Hawes, Lockheed Martin, Bremen Lord Mayor Carsten Sieling, David Parker, ESA, Bas Theelen, Airbus.
The European Service Module that will power and propel the Orion spacecraft on its first mission around the Moon ships from Bremen to the United States. It will take off in an Antonov An-124 aircraft in the early hours of 5 November and arrive at Kennedy Space Center in Florida, US on 6 November.
Designed and manufactured in Italy and Germany, the powerful workhorse is Europe’s contribution to humanity’s return to the Moon.
Credits: Airbus