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Cryogenic fuels are fuels that require storage at extremely low temperatures in order to maintain them in a liquid state. These fuels are used in machinery that operates in space (e.g. rockets and satellites) where ordinary fuel cannot be used, due to the very low temperatures often encountered in space, and the absence of an environment that supports combustion (on Earth, oxygen is abundant ...
A Sea Rogue remote weapon system fitted with a 12.7 mm machine gun mounted on a Valour class frigate of the South African Navy. The Reutech Rogue remote weapon system is a remotely controlled turret system for weapons ranging from 7.62 mm general purpose machine guns up to 20 mm cannons or a 40mm automatic grenade launcher.
Nitrogen is a liquid under −195.8 °C (77.3 K).. In physics, cryogenics is the production and behaviour of materials at very low temperatures.. The 13th International Institute of Refrigeration's (IIR) International Congress of Refrigeration (held in Washington DC in 1971) endorsed a universal definition of "cryogenics" and "cryogenic" by accepting a threshold of 120 K (−153 °C) to ...
The cryogenic treatment process was invented by Ed Busch (CryoTech) in Detroit, Michigan in 1966, inspired by NASA research, which later merged with 300 Below, Inc. in 2000 to become the world's largest and oldest commercial cryogenic processing company after Peter Paulin of Decatur, IL collaborated with process control engineers to invent the world's first computer-controlled "dry" cryogenic ...
The 3 He enters the cryostat at a pressure of a few hundred millibar. In the classic dilution refrigerator (known as a wet dilution refrigerator), the 3 He is precooled and purified by liquid nitrogen at 77 K and a 4 He bath at 4.2 K. Next, the 3 He enters a vacuum chamber where it is further cooled to a temperature of 1.2–1.5 K by the 1 K ...
A Kongsberg/Thales Protector M151 with an M2 heavy machine gun on a M1126 Stryker The operator screen of a RWS installed on U.S. Army Stryker A heavy FLW 200 made by Krauss-Maffei Wegmann for the German Army A light remote weapon system made by OTO Melara Iberica A Sea Rogue fitted with a 12.7 mm machine gun mounted on a Valour class frigate of the South African Navy
Liquid helium (1 C, 6 P) R. Rocket engines using hydrogen propellant (45 P) S. Superconductivity (3 C, 113 P) Superfluidity (38 P) Pages in category "Cryogenics"
The AR-3 munition consists of a proprietary polymer baton which is intended to be deployed at living tissue as a means of inflicting blunt force trauma through direct impact at ranges up to 100 meters (110 yards)Unlike the AR-1 munition, the AR-3 also contains a discrete payload of chemical irritant in the form of CS or OC powder which are ...