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With a diameter of 100 meters, the Radio Telescope Effelsberg is one of the largest fully steerable radio telescopes on earth. Since operations started in 1972, the technology has been continually improved (i.e. new surface for the antenna-dish, better reception of high-quality data, extremely low noise electronics) making it one of the most advanced modern telescopes worldwide.
The telescope is employed to observe pulsars, cold gas- and dust clusters, the sites of star formation, jets of matter emitted by black holes and the nuclei (centres) of distant far-off galaxies.
Effelsberg is an important part of the worldwide network of radio telescopes. The combination of different telescopes in interferometric mode makes possible to obtain the sharpest images of the universe.
Text (C) Max Planck Institute for Radio Astronomy
The telescope may receive radio signals from a distance of up to 12bn light years. Together with a redio telescope in the US (Green Bank, Virginia), it is the largest radio telescope in the world.
The photos show the telescope at different angles because it was turning quite a bit during our visit.
These 39 mm diameter casino-sized chips are the same style of poker chips used in the exclusive poker games seen on the Sopranos T.V. show! They look like clay chips. They sound like clay chips. They even have a soft feel as clay chips. In fact, THEY ARE CLAY CHIPS! A full 10 grams in weight, they are produced from a clay composite that gives them the feel and sound of clay chips when they splash the pot. No inserts! No resin! No "plinky" sound when they fall to the table or on each other! These are the closest to authentic clay chips you can get without having to pay the high cost per chip. In fact, you will pay a fraction of that price with these ultra-quality chips!
These single hinged expansion joints were custom designed by U.S. Bellows for a chemical plant in Saudi Arabia. The units are 66” in diameter and 39-3/8” OAL. The bellows are fabricated from Incoloy 825 with the weld ends, hinges, liner and cover from 321 stainless steel. The expansion joints are designed for an operating pressure of 73 psig at 986°F with 4.25 degrees of angular rotation. All units were dye-penetrant tested, X-ray tested on all bellows and pipe longitudinal weld seams, PMI tested on all alloy components, and the alloy steel plate for the pipe was ultrasonic tested prior to shipment.
red habanero pepper planet and a 36 inch diameter garden with 75 Chinese long beans and 6 tomato vines plants Square foot hydroponic gardens are self-contained growing systems and is a reliable method for circulating oxygen and nutrients
to the roots of your plants. By using a Drainback, your plants will flourish!
Piping Technology & Products, Inc. custom designed and fabricated a 66-inch diameter, three-bolt pipe clamp for a chemical company located in Deer Park, Texas.
The clamp will be used in conjunction with a PT&P Spring Hanger and a length of rod in order to support the pipeline. After formation, the clamp's dimensions measured at 97.75 OAL and 69.5 at its widest point. By using a FEA program, the clamp was designed for an operating load of 24,000 pounds at 500° F. The materials used consisted of 1 ¾ x 10 x 128 ¼ thick A-36 Carbon steel, with three 2½ studs and nuts.
The Cutterhead supports, represented below, was built by Galbiati Group, and was intended for a boring machine built for an excavation pilot project in Australia, Queensland. The TBM in question, shall have an overall diameter of 8 meters, and will be commissioned for digging two tunnels providing access to a coal mine.
The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Over time Earth's gravity has caused tidal locking, causing the same side of the Moon to always face Earth. Because of this, the lunar day and the lunar month are the same length, at 29.5 Earth days. The Moon's gravitational pull – and to a lesser extent, the Sun's – are the main drivers of Earth's tides.
In geophysical terms the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter is 3,474 km (2,159 mi), roughly one-quarter of Earth's (about as wide as Australia.) Within the Solar System, it is the largest and most massive satellite in relation to its parent planet, the fifth largest and most massive moon overall, and larger and more massive than all known dwarf planets. Its surface gravity is about one sixth of Earth's, about half of that of Mars, and the second highest among all Solar System moons, after Jupiter's moon Io. The body of the Moon is differentiated and terrestrial, with no significant hydrosphere, atmosphere, or magnetic field. It formed 4.51 billion years ago, not long after Earth's formation, out of the debris from a giant impact between Earth and a hypothesized Mars-sized body called Theia.
The lunar surface is covered in lunar dust and marked by mountains, impact craters, their ejecta, ray-like streaks and, mostly on the near side of the Moon, by dark maria ("seas"), which are plains of cooled magma. These maria were formed when molten lava flowed into ancient impact basins. The Moon is, beside when passing through Earth's shadow during a lunar eclipse, always illuminated by the Sun, but from Earth the visible illumination shifts during its orbit, producing the lunar phases. The Moon is the brightest celestial object in Earth's night sky. This is mainly due to its large angular diameter, while the reflectance of the lunar surface is comparable to that of asphalt. The apparent size is nearly the same as that of the Sun, allowing it to cover the Sun almost completely during a total solar eclipse. From Earth about 59% of the lunar surface is visible over time due to cyclical shifts in perspective (libration), making parts of the far side of the Moon visible.
For humans the Moon has been an important source of inspiration and knowledge, having been crucial to cosmography, mythology, religion, art, time keeping, natural science, and spaceflight. On September 13, 1959, the first human-made object to reach an extraterrestrial body arrived on the Moon, the Soviet Union's Luna 2 impactor. In 1966, the Moon became the first extraterrestrial body where soft landings and orbital insertions were achieved. On July 20, 1969, humans for the first time landed on the Moon and any extraterrestrial body, at Mare Tranquillitatis with the lander Eagle of the United States' Apollo 11 mission. Five more crews were sent between then and 1972, each with two men landing on the surface. The longest stay was 75 hours by the Apollo 17 crew. Since then, exploration of the Moon has continued robotically with crewed missions being planned to return beginning in the late 2020s.
The origin of the Moon is usually explained by a Mars-sized body striking the Earth, creating a debris ring that eventually collected into a single natural satellite, the Moon, but there are a number of variations on this giant-impact hypothesis, as well as alternative explanations, and research continues into how the Moon came to be formed. Other proposed scenarios include captured body, fission, formed together (condensation theory, synestia), planetesimal collisions (formed from asteroid-like bodies), and collision theories.
The standard giant-impact hypothesis suggests that a Mars-sized body, called Theia, impacted the proto-Earth, creating a large debris ring around Earth, which then accreted to form the Moon. This collision also resulted in the 23.5° tilted axis of the Earth, thus causing the seasons. The Moon's oxygen isotopic ratios seem to be essentially identical to Earth's. Oxygen isotopic ratios, which may be measured very precisely, yield a unique and distinct signature for each Solar System body. If Theia had been a separate protoplanet, it probably would have had a different oxygen isotopic signature than proto-Earth, as would the ejected mixed material. Also, the Moon's titanium isotope ratio (50Ti/47Ti) appears so close to the Earth's (within 4 parts per million) that little if any of the colliding body's mass could likely have been part of the Moon.
"One of the challenges to the longstanding theory of the collision, is that a Mars-sized impacting body, whose composition likely would have differed substantially from that of Earth, likely would have left Earth and the moon with different chemical compositions, which they are not."
Some theories have been stated that presume the proto-Earth had no large moons early in the formation of the Solar System, 4.425 billion years ago, Earth being basically rock and lava. Theia, an early protoplanet the size of Mars, hit Earth in such a way that it ejected a considerable amount of material away from Earth. Some proportion of these ejecta escaped into space, but the rest consolidated into a single spherical body in orbit about Earth, creating the Moon.
The hypothesis requires a collision between a proto-Earth about 90% of the diameter of present Earth, and another body the diameter of Mars (half of the terrestrial diameter and a tenth of its mass). The latter has sometimes been referred to as Theia, the name of the mother of Selene, the Moon goddess in Greek mythology. This size ratio is needed in order for the resulting system to have sufficient angular momentum to match the current orbital configuration. Such an impact would have put enough material into orbit around Earth to have eventually accumulated to form the Moon.
Computer simulations show a need for a glancing blow, which causes a portion of the collider to form a long arm of material that then shears off. The asymmetrical shape of the Earth following the collision then causes this material to settle into an orbit around the main mass. The energy involved in this collision is impressive: possibly trillions of tonnes of material would have been vaporized and melted. In parts of the Earth, the temperature would have risen to 10,000 °C (18,000 °F).
The Moon's relatively small iron core (compared to other rocky planets and moons in the Solar System) is explained by Theia's core mostly merging into that of Earth. The lack of volatiles in the lunar samples is also explained in part by the energy of the collision. The energy liberated during the reaccretion of material in orbit around Earth would have been sufficient to melt a large portion of the Moon, leading to the generation of a magma ocean.
The newly formed Moon orbited at about one-tenth the distance that it does today, and spiraled outward because of tidal friction transferring angular momentum from the rotations of both bodies to the Moon's orbital motion. Along the way, the Moon's rotation became tidally locked to Earth, so that one side of the Moon continually faces toward Earth. Also, the Moon would have collided with and incorporated any small preexisting satellites of Earth, which would have shared the Earth's composition, including isotopic abundances. The geology of the Moon has since been more independent of the Earth.
A 2012 study on the depletion of zinc isotopes on the Moon found evidence for volatile depletion consistent with the giant-impact origin for Earth and the Moon. In 2013, a study was released that indicated that water in lunar magma is indistinguishable from that in carbonaceous chondrites and nearly the same as that of Earth in isotopic composition.
Although the giant-impact hypothesis explains many aspects of the Earth–Moon system, there are still a few unresolved problems, such as the Moon's volatile elements not being as depleted as expected from such an energetic impact.
Another issue is lunar and Earth isotope comparisons. In 2001, the most precise measurement yet of the isotopic signatures of Moon rocks was published. Surprisingly, the Apollo lunar samples carried an isotopic signature identical to Earth rocks, but different from other Solar System bodies. Because most of the material that went into orbit to form the Moon was thought to come from Theia, this observation was unexpected. In 2007, researchers from Caltech showed that the likelihood of Theia having an identical isotopic signature as the Earth is very small (less than 1 percent chance). Published in 2012, an analysis of titanium isotopes in Apollo lunar samples showed that the Moon has the same composition as Earth, which conflicts with the Moon forming far from Earth's orbit.
To help resolve these problems, a theory published in 2012 posits that two bodies—each five times the size of Mars—collided, then recollided, forming a large disc of mixed debris that eventually formed Earth and the Moon.
The Moon is traditionally thought to have coalesced from the debris ejected by a giant impact onto the early Earth. However, such models struggle to explain the similar isotopic compositions of Earth and lunar rocks at the same time as the system's angular momentum, and the details of potential impact scenarios are hotly debated. Above a high resolution threshold for simulations, a study published in 2022 finds that giant impacts can immediately place a satellite with similar mass and iron content to the Moon into orbit far outside Earth's Roche limit. Even satellites that initially pass within the Roche limit can reliably and predictably survive, by being partially stripped and then torqued onto wider, stable orbits. Furthermore, the outer layers of these directly formed satellites are molten over cooler interiors and are composed of around 60% proto-Earth material. This could alleviate the tension between the Moon's Earth-like isotopic composition and the different signature expected for the impactor. Immediate formation opens up new options for the Moon's early orbit and evolution, including the possibility of a highly tilted orbit to explain the lunar inclination, and offers a simpler, single-stage scenario for the origin of the Moon.
In 2004, Russian astrophysicist Nikolai Gorkavyi proposed a novel model titled the multiple large asteroid impacts model, which found support from a notable group of Russian astronomers in 2013 and later, in 2017, by planetary researchers at Weizmann Institute of Science in Rehovot, Israel. In general terms, the main idea of the model suggests that the Moon was formed as a result of a violent rain of large asteroids (1–100 km) that repeatedly hammered the fledgling Earth over millions of years. Such a series of smaller impacts, which were likely more common in the early Solar System, could blast enough rocky Earth debris into orbit to form a protosatellite disk which later forms into a small moonlet. As repeated impacts created more balls of debris, the moonlets could merge over time into one large moon.
In 2018 researchers at Harvard and the UC Davis developed computer models demonstrating that one possible outcome of a planetary collision is that it creates a synestia, a mass of vaporized rock and metal which forms a biconcave disc extending beyond the lunar orbit. The synestia will eventually shrink and cool to accrete the satellite and reform the impacted planet.
This hypothesis states that the Moon was captured by the Earth. This model was popular until the 1980s, and some points in its favor are the Moon's size, orbit, and tidal locking.
One problem is understanding the capture mechanism. A close encounter of two planetary bodies typically results in either collision or altered trajectories. For this hypothesis to work, there might have been a large atmosphere around the primitive Earth, which would slow the movement of the Moon by aerobraking before it could escape. That hypothesis may also explain the irregular satellite orbits of Jupiter and Saturn. However, this hypothesis does not adequately explain the essentially identical oxygen isotope ratios of the two bodies.
This is the now discredited hypothesis that an ancient, rapidly spinning Earth expelled a piece of its mass. This was first proposed by George Darwin (son of the famous biologist Charles Darwin) in 1879 and retained some popularity until Apollo. The Austrian geologist Otto Ampferer in 1925 also suggested the emerging of the Moon as cause for continental drift.
It was proposed that the Pacific Ocean represented the scar of this event. Today it is known that the oceanic crust that makes up this ocean basin is relatively young, about 200 million years old or less, whereas the Moon is much older. The Moon does not consist of oceanic crust but of mantle material, which originated inside the proto-Earth in the Precambrian.
The hypothesis of accretion suggests that the Earth and the Moon formed together as a double system from the primordial accretion disk of the Solar System or even a black hole. The problem with this hypothesis is that it does not explain the angular momentum of the Earth-Moon system or why the Moon has a relatively small iron core compared to the Earth (25% of its radius compared to 50% for the Earth).
Dutch scientists Rob de Meijer and Wim van Westrenen suggested in 2010 that the Moon may have formed from a nuclear explosion caused by the centrifugal force of an earlier, spinning proto-Earth. The centrifugal force would have concentrated heavy elements such as thorium and uranium on the equatorial plane and at the boundary between the Earth's outer core and mantle. If the concentrations of these radioactive elements were high enough, this could have led to a nuclear chain reaction that became supercritical, causing a nuclear explosion ejecting the Moon into orbit. This natural nuclear fission reactor has been observed on Earth at a much smaller scale.
In 2011, it was theorized that a second moon existed 4.5 billion years ago, and later had an impact with the Moon, as a part of the accretion process in the formation of the Moon.
One hypothesis, presented only as a possibility, was that the Earth captured the Moon from Venus.
Uranium–lead dating of Apollo 14 zircon fragments shows the age of the Moon to be about 4.51 billion years.
A team of researchers of the Miniature Radio Frequency (Mini-RF) instrument on NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft concluded that the Moon's subsurface may be richer in metals, like iron and titanium, more than scientists had believed.
In July 2020 scientists report that the Moon formed 4.425 ±0.025 bya, about 85 million years later than thought, and that it hosted an ocean of magma for substantially longer than previously thought (for ~200 million years).
On 1 November 2023, scientists reported that, according to computer simulations, remnants of a protoplanet, named Theia, could be inside the Earth, left over from a collision with the Earth in ancient times, and afterwards becoming the Moon.
The UP Big Boy 4014 floats down the tracks on 28 wheels that are 68 inches in diameter. I am amazed at it's build.
27" tall, belly diameter 21", brand new, $50
Belly is decorated with dragon faces found in many Chinese bronzes. The shoulder is decorated with waves and the neck with clouds and bats, symbolizing blessings.
The vase is a nice accent to a home with oriental ambience. It can be the focus of attention on a nice stand or serve as the base of a bouquet of exotic dry branches/flowers.
bms_bms@yahoo.com
The round barn, sixty-feet in diameter, was built in 1918 by diary farmer Wencl Kajer. The Kajer Farmstead- the round barn and a house that was built in 1920- is listed on the National Register of Historic Places.
The photograph was taken in 2009. In April 2017, I revisited the Kajer Farmstead and the barn was gone. To view a photograph of the site where the barn was located go to: www.flickr.com/gp/23711298@N07/4L5d76
With a diameter of 100 meters, the Radio Telescope Effelsberg is one of the largest fully steerable radio telescopes on earth. Since operations started in 1972, the technology has been continually improved (i.e. new surface for the antenna-dish, better reception of high-quality data, extremely low noise electronics) making it one of the most advanced modern telescopes worldwide.
The telescope is employed to observe pulsars, cold gas- and dust clusters, the sites of star formation, jets of matter emitted by black holes and the nuclei (centres) of distant far-off galaxies.
Effelsberg is an important part of the worldwide network of radio telescopes. The combination of different telescopes in interferometric mode makes possible to obtain the sharpest images of the universe.
Text (C) Max Planck Institute for Radio Astronomy
The telescope may receive radio signals from a distance of up to 12bn light years. Together with a redio telescope in the US (Green Bank, Virginia), it is the largest radio telescope in the world.
The photos show the telescope at different angles because it was turning quite a bit during our visit.
At the Antenna Mesa just north of Boulder, Colorado.
According to the web site: www.its.bldrdoc.gov/table_mountain/facilities/ "Two 18.3-Meter (60 foot) Parabolic Antennas: These parabolic dish antennas are steerable in both azimuth and elevation and have been used at frequencies ranging from 400 MHz to 6 GHz."
Save on Chromium Steel Ball Grade 25 Reflective Finish Precision Tolerance ASTM A295 1 Diameter (Pack of 10) Saving, Order Now! Want it delivered within 1 day? Choose One-Day Shipping at checkout.Chromium Steel Ball Grade 25 Reflective Finish Precision Tolerance ASTM A295 1 Diameter (Pack of 10) See More Detail at this Link: Read Full Detail | Compare
Chromium Steel Ball Grade 25 Reflective Finish Precision Tolerance ASTM A295 1 Diameter (Pack of 10)
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PRECIOSA ORNELA presents the new PRECIOSA Hill™ fire polished bead.
This half-ball with a round base at a diameter of 6 and 8 mm is decorated with a multiple cut. The shallow rounding in the lower section makes it easier to sew around and to mutually link the bead with seed beads and other selected PRECIOSA Traditional Czech Beads™. It is possible to apply any type of surface finish to the excellently polished top of the delicate arching. Choose from the wide range of half-coatings and full-coatings to create your own collection. Use the options provided by this new geometric shape with facets which enhance the effects of the surface finishes and combine the bead with other popular shapes, for example with PRECIOSA Farfalle™, PRECIOSA Pellet™ and PRECIOSA Solo™ and create an elegant fashion accessory.
TECHNICAL INFORMATION:
Article number: 151 01 375
Size: 8 mm
Approx.PCS/KG: 2060
Visit our website for more information about the new PRECIOSA Hill™: PRECIOSA Hill™
diameter :: 1"
color :: blue, grey, white
durable & machine washable
...these hand cast resin buttons make every garment, gift, and craft project complete...
PERFECT FOR:
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Silk-button galls (2.5mm diameter) caused by the gall wasp species Neuroterus numismalis -
on underside of Pedunculate oak leaf (aka English oak) - Quercus robur.
A female gall-causer wasp (i.e. a wasp of the family Cynipidae) lays her egg in the tissue of the host plant, inducing the plant to form the gall in which the egg hatches to a larva. The larva feeds on the tissue of the gall while developing into a wasp.
When ready to fly the wasp drills a small round hole in the gall through which it emerges.
- image © Phil Brandon Hunter - www.philbhu.com - image ref: P7200904a
for more on the same subject click here: www.flickr.com/photos/191876035@N02/albums/72177720301862084
Title: Midvale Company "Riggers and Rotor" for General Electric. James O'Leary, Rigger; Grant Blanchard, Rigger; Jos DeBrigida, Helper; Laurence McGeer, Machinist. Overall length 11' 3 1/4"; Diameter 41 3/8"; Weight 30T; 1" cake, March 16, 1953
Date: 1953
Photographer: John Mudd
Photo ID: 6013PB1N74
Collection: Midvale Company Photographs (1883 - 1953)
Repository: The Kheel Center for Labor-Management Documentation and Archives in the ILR School at Cornell University is the Catherwood Library unit that collects, preserves, and makes accessible special collections documenting the history of the workplace and labor relations. www.ilr.cornell.edu/library/kheel
Notes:
Copyright: The copyright status of this image is unknown. It may also be subject to third party rights of privacy or publicity. Images are being made available for purposes of private study, scholarship, and research. The Kheel Center would like to learn more about this image and hear from any copyright owners who are not properly identified so that we may make the necessary corrections.
Tags: Kheel Center for Labor-Management Documentation and Archives,Cornell University Library,Men, Shop Scenes, Steel Plants, Steel Workers, Working Conditions
OUTSIDE DIAMETER OF CIRCULAR RING: 157 mm
DISTANCE BETWEEN SCREWS (ON SIDES): 115 mm
The good news is that the repair worked and has not failed in four months.
U.S. Bellows custom designed five of these 178" tied universal expansion joints for an exhaust duct application in a power plant in Virginia. The expansion joints are 178" in diameter and 276" in length. The bellows were fabricated from 321 stainless steel and the rest of the assembly from carbon steel. They are designed for an operating temperature 248°F at 22.5 psig, an operating load of 1256 lb/in, and 6.25" of lateral deflection. All units were 100% dye-penetrant and soap and air tested prior to shipment. Because of the sheer size of the units, all of the tie rod supports were FEA analyzed.
Edible Parts: Root.
Edible Uses:
Bulb - raw or cooked. The bulb, which can be up to 5cm in diameter, has a mild, starchy flavor when eaten raw, but a gummy texture that reduces the enjoyment of it somewhat. When cooked, however, it develops a delicious sweet flavor somewhat like sweet chestnuts, and is a highly nutritious food. Excellent when slow baked, it can also be dried and made into a powder which can be used as a thickener in stews or mixed with cereal flours when making bread, cakes etc.. The bulbs can be boiled down to make a molasses, this was used on festival occasions by various Indian tribes. The bulbs can be harvested at any time of the year, but are probably best in early summer when the seeds are ripe. One report says that the bulbs contain inulin (a starch that cannot be digested by humans) but that this breaks down when the bulb is cooked slowly to form the sugar fructose which is sweet and easily digested. Quamash bulbs were a staple food of the N. American Indians. The tribes would move to the Quamash fields in the early autumn and, while some people harvested the bulbs, others would dig a pit, line it with boulders then fill it with wood and set fire to it. The fire would heat the boulders and the harvested bulbs would then be placed in the pit and the whole thing covered with earth and the bulbs left to cook slowly for 2 days. The pit would then be opened and the Indians would feast on the bulbs until they could no longer fit any more in their stomachs. Whatever was left would be dried and stored for winter use.
MEDICINAL USE: Birthing aid; Oxytocic.
A decoction of the roots has been used to induce labor. An infusion of the leaves has been used to treat vaginal bleeding after birth and to help expel the placenta.
➤ American art glass
➤ Diameter: 18.2mm
➤ Depth: 7.2mm
➤ Hole size: 7.1mm
For more information about me and where to find my work, please check my Flickr profile: www.flickr.com/people/janehamill/
With a diameter of 100 meters, the Radio Telescope Effelsberg is one of the largest fully steerable radio telescopes on earth. Since operations started in 1972, the technology has been continually improved (i.e. new surface for the antenna-dish, better reception of high-quality data, extremely low noise electronics) making it one of the most advanced modern telescopes worldwide.
The telescope is employed to observe pulsars, cold gas- and dust clusters, the sites of star formation, jets of matter emitted by black holes and the nuclei (centres) of distant far-off galaxies.
Effelsberg is an important part of the worldwide network of radio telescopes. The combination of different telescopes in interferometric mode makes possible to obtain the sharpest images of the universe.
Text (C) Max Planck Institute for Radio Astronomy
The telescope may receive radio signals from a distance of up to 12bn light years. Together with a redio telescope in the US (Green Bank, Virginia), it is the largest radio telescope in the world.
The photos show the telescope at different angles because it was turning quite a bit during our visit.
18003 HT 30/5 3000 N.m Small Diameter 3/4" input and a 1" output - Close up of the 1" output square.
Here in a demonstration of a single piston, kerosene powered engine, this gentleman applied a little convincing with his 9 pound hammer (see Notes).
This engine had an enormous bore (piston diameter) and stroke, was started by using an oxy-acetylene torch to heat its glow plug to yellow-red heat, and then the hammering was used to drive a shim across the cylinder head
No one stated the horsepowwer, but it must have been in the 150-200 HP range given how much it shook the trailer and the size of the pully wheels
At the 37th Annual Southeast Old Thresher's Reunion (at Denton Farmpark in Denton North Carolina is held every July 4th week). Its web page is (http://www.threshers.com/farmpark/index.html).
With a diameter of 100 meters, the Radio Telescope Effelsberg is one of the largest fully steerable radio telescopes on earth. Since operations started in 1972, the technology has been continually improved (i.e. new surface for the antenna-dish, better reception of high-quality data, extremely low noise electronics) making it one of the most advanced modern telescopes worldwide.
The telescope is employed to observe pulsars, cold gas- and dust clusters, the sites of star formation, jets of matter emitted by black holes and the nuclei (centres) of distant far-off galaxies.
Effelsberg is an important part of the worldwide network of radio telescopes. The combination of different telescopes in interferometric mode makes possible to obtain the sharpest images of the universe.
Text (C) Max Planck Institute for Radio Astronomy
The telescope may receive radio signals from a distance of up to 12bn light years. Together with a redio telescope in the US (Green Bank, Virginia), it is the largest radio telescope in the world.
The photos show the telescope at different angles because it was turning quite a bit during our visit.
18027.AUT PneuTorque Small Diameter Series PT 2700 Automatic Two Speed with a 1" square drive - Close up of the air inlet port.
red habanero pepper planet and a 36 inch diameter garden with 75 Chinese long beans and 6 tomato vines plants Square foot hydroponic gardens are self-contained growing systems and is a reliable method for circulating oxygen and nutrients
to the roots of your plants. By using a Drainback, your plants will flourish!
The Vivien Mallock roundel of HM Queen Elizabeth II in Winchester's Great Hall is made from bronze and measures six feet (72 inches or about 183 cm) in diameter. Its bas-relief portrait projects approximately nine inches (about 23 cm) from the background, creating a dramatic three-dimensional effect.
Solid bronze, cast as a large-scale public sculpture designed for durability outdoors or in historic settings.
The Queen's face and features extend 9 inches forward, with the Hampshire Rose surround framing it.
Diameter is 13 inch (33 cm) and in the middle the pillow is 2.5 inch (6 cm) thick.
For sale in my Etsy shop: www.etsy.com/shop/JustDo
red habanero pepper planet and a 36 inch diameter garden with 75 Chinese long beans and 6 tomato vines plants Square foot hydroponic gardens are self-contained growing systems and is a reliable method for circulating oxygen and nutrients
to the roots of your plants. By using a Drainback, your plants will flourish!
diameter: 21.55; problable frigidarium or natatio
www.flickr.com/groups/600884@N25/discuss/7215762895846967...
Mars
Diameter: 16.01"
Magnitude: -1.33
Date: 2020-08-12
Time: 05:56 UT
Location: Richmond Hill (ON)
Telescope: Celestron 8 SCT, 2x Barlow
Mount: Celestron Advanced GT
Camera: ZWO ASI224MC
FPS (avg.)=68
Shutter=3.371ms
Gain=249 (41%)
Brightness=1 (off)
Best 20% of 6174 frames
Software: FireCapture, AS3!, Registax, GIMP
Side view of a 3mm diameter Polycrystaline diamond on silicon nano-diameter porous filter assembly. Five distributed diamond membrane filters.
With a diameter of 100 meters, the Radio Telescope Effelsberg is one of the largest fully steerable radio telescopes on earth. Since operations started in 1972, the technology has been continually improved (i.e. new surface for the antenna-dish, better reception of high-quality data, extremely low noise electronics) making it one of the most advanced modern telescopes worldwide.
The telescope is employed to observe pulsars, cold gas- and dust clusters, the sites of star formation, jets of matter emitted by black holes and the nuclei (centres) of distant far-off galaxies.
Effelsberg is an important part of the worldwide network of radio telescopes. The combination of different telescopes in interferometric mode makes possible to obtain the sharpest images of the universe.
Text (C) Max Planck Institute for Radio Astronomy
The telescope may receive radio signals from a distance of up to 12bn light years. Together with a redio telescope in the US (Green Bank, Virginia), it is the largest radio telescope in the world.
The photos show the telescope at different angles because it was turning quite a bit during our visit.
18028.MTS PneuTorque Small Diameter Series PT 5500 Manual Two Speed with a 1 1/2" square drive - Tool is shown without the reaction plate.
These externally pressurized expansion joints are 16" in diameter and 60-1/4" face-to-face. The bellows are fabricated from 304 stainless steel, and the rest of the expansion joint is fabricated from carbon steel. They are custom designed for 8" axial movement and 150 psig at 176°F, with a spring rate of 2,152 lb./in. Each expansion joint was hydro-tested, radiographic tested, and dye penetrant tested prior to shipment.
This ~220 meter diameter impact crater, located at 6.258°N, 215.101°E, was caused by an obliquely impacting asteroid or comet. What is an oblique impact, and how do we know that this crater was formed by an oblique strike?
The term oblique impact implies an impact angle of 15 degrees or less. The impact angle is the angle between the surface and the vector that represents the direction of travel of the impactor. The <15 degree impact angle results in a number of diagnostic features including asymmetric ejecta and non-circular crater shapes. It is clear that this impact has asymmetric ejecta since the area immediately to the south of the crater is "missing" its high reflectance ejecta. Due to the low angle of impact, the ejecta has more momentum in the direction of travel of the impact, which causes the asymmetric ejecta patterns. The area with the least ejecta is sometimes called the "zone of avoidance," and it indicates the impactor flight direction. In this case, the impactor was traveling from the south to the north when it hit the lunar surface (north is up).