Found 146 document(s)
Page 4 of 10
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Chart on launch vehicles and chemical propulsion for educational display...
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Astrogeologic studies for space flight program - lunar geology, crater investigations, space chemistry, petrography, and photometry...
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Chronological compilation of events relating to space exploration and exploitation...
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Baker-Nunn photography of Syncom II fourth stage ignition and Centaur vehicle AC-2...
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Ionospheric absorption, gas adsorption on tungsten, ion production, and superconductivity of metals...
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Injun-Explorer satellite combination for simultaneous measurements of air density and atmospheric heating...
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Vacuum test chamber to determine explosion and detonation hazards from venting of hydrogen and oxygen propellants...
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Thin tungsten wire and tungsten tubing are brazed together using a contacting coil of nickel wire heated to its melting point in an inert-gas atmosphere. This method is also effective for brazing tungsten to tungsten-rhe...
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Reinforcement core holds O-ring in place within a structure while adjacent parts are being assembled. The core in the O-ring adds circumferential rigidity to the O-ring material. This inner core does not appreciably affe...
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Transmitting-damping tube with one end closed, the other open to a pressure source, has a pressure sensor connected to a port close to the pressure source. This accurately measures transient or rapidly varying fluid pres...
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Standard developer solution is mixed with dipropyl carbonate. This reduces swelling in the photosensitive resist and permits application of relatively thick films with minimal pinhole formation and increased line resolut...
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Fluorescent coating aids visual daylight detection and identification of distant objects. An object appears as a blinking light when the area is alternately scanned with transmitting and obscuring filters. This method ca...
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Transistorized high speed circuit limits currents from a square-wave ac power supply. The current limiter resets after each half cycle of the square wave and thus minimizes power losses....
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Gauge accurately measures low air densities in high-vacuum systems. It relies on the detection of near-visible light radiated from nitrogen molecules present in the system....
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Easily transportable preprinted magnetic planning boards are made by coating thin sheet steel with clear plastic. Flexible magnetic boards used with paper charts are constructed from close mesh steel screen....