Search results
Results from the WOW.Com Content Network
The attendant wears a full hazmat suit due to the hazards of the hypergolic fuel hydrazine, here being loaded onto the MESSENGER space probe. A hypergolic propellant is a rocket propellant combination used in a rocket engine, whose components spontaneously ignite when they come into contact with each other.
RDX has a high nitrogen content and a high oxygen to carbon ratio, (O:C ratio), both of which indicate its explosive potential for formation of N 2 and CO 2. RDX undergoes a deflagration to detonation transition (DDT) in confinement and certain circumstances. [73] The velocity of detonation of RDX at a density of 1.80 g/cm 3 is 8750 m/s. [74]
The .500 Nitro Express was designed as a hunting cartridge for use against large and heavy dangerous game such as Cape buffalo, rhinoceros, and African elephant. The 570 gr (37 g) bullet has excellent sectional density which is required for work against dangerous game out to 110 yd (100 m) and provides adequate penetration for the hunting of ...
Even though the byproducts of substances used as fuel are also often used as a reaction mass to create the thrust, such as with a chemical rocket engine, propellant and fuel are two distinct concepts. Vehicles can use propellants to move by ejecting a propellant backwards which creates an opposite force that moves the vehicle forward.
Nitro compounds are explosive because although the diatomic form of nitrogen is very stable—that is, the triple bond that holds N 2 together is very strong, and therefore has a great deal of bond energy—the nitro compounds themselves are unstable, as the bonds between nitrogen atoms and other atoms in nitro compounds are weak by comparison.
This type of fuel is mainly used for interplanetary probes and spacecraft propulsion. Unlike other more common propellants like liquid oxygen or liquid hydrogen , Aerozine 50 is liquid at room temperature and can be stored in liquid state without significant boil off, thus making it a storable propellant better suited for long-term ...
The slower-burning deflagration action results in a characteristic fragmentation pattern with large pieces dispersed in a 30-degree cone. [4] The Mk 211 is a very popular .50 caliber sniper round used in the Barrett M82 rifle and other .50 BMG rifles. [5] It is also often used in heavy machine guns such as the M2 Browning, but not the M85.
Any large, smoothbore, muzzle-loading gun—used before the advent of breech-loading, rifled guns—may be referred to as a cannon, though once standardised names were assigned to different-sized cannon, the term specifically referred to a gun designed to fire a 42-pound (19 kg) shot, as distinct from a demi-cannon – 32 pounds (15 kg ...