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Gunpowder, an explosive mixture of sulfur, charcoal and potassium nitrate (also known as saltpeter), was the original propellant employed in firearms and fireworks.It was used from about the 10th or 11th century onward, but it had disadvantages, including the large amount of smoke it produced.
Ammonium perchlorate composite propellant (APCP) is a solid rocket propellant. It differs from many traditional solid rocket propellants such as black powder or zinc-sulfur, not only in chemical composition and overall performance but also by being cast into shape, as opposed to powder pressing as with black powder. This provides manufacturing ...
During World War II, Badger was managed by Hercules Powder Company. It produced rocket propellant, smokeless powder, and E.C. powder. Smokeless powder had been patented a decade before World War II by DuPont and Hercules Powder Company had the rights to make it at Badger. E.C. Powder was used in hand grenades, tear gas canisters, and blank ...
Hercules, Inc. was a chemical and munitions manufacturing company based in Wilmington, Delaware, United States, incorporated in 1912 as the Hercules Powder Company following the breakup of the DuPont explosives monopoly by the U.S. Circuit Court in 1911. [1]
Gunpowder was extensively used in the Naderian Wars. Around the late 14th century, European powdermakers first began adding liquid during grinding to improve mixing, reduce dust, and with it the risk of explosion. [137] The powder-makers would then shape the resulting paste of dampened gunpowder, known as mill cake, into corns, or grains, to dry.
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However unlike Greek fire, gunpowder's physical properties are solid rather than liquid, which makes it easier to store and load. [4] The rocket propelled fire arrow appeared later. By the mid-14 century rocket arrow launchers had appeared in the Ming dynasty and later on mobile rocket arrow launchers were utilized in China and later spread to ...
Most people enter military service “with the fundamental sense that they are good people and that they are doing this for good purposes, on the side of freedom and country and God,” said Dr. Wayne Jonas, a military physician for 24 years and president and CEO of the Samueli Institute, a non-profit health research organization.