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Gunpowder is a low explosive: it does not detonate, but rather deflagrates (burns quickly). This is an advantage in a propellant device, where one does not desire a shock that would shatter the gun and potentially harm the operator; however, it is a drawback when an explosion is desired.
Earliest known written formula for gunpowder, from the Wujing Zongyao of 1044 AD.. Gunpowder is the first explosive to have been developed. Popularly listed as one of the "Four Great Inventions" of China, it was invented during the late Tang dynasty (9th century) while the earliest recorded chemical formula for gunpowder dates to the Song dynasty (11th century).
Because of their similar use, both the original black powder formulation and the smokeless propellant which replaced it are commonly described as gunpowder. The combustion products of smokeless powder are mainly gaseous, compared to around 55% solid products (mostly potassium carbonate , potassium sulfate , and potassium sulfide ) for black ...
The first powders were called "MR" for military rifle powder. In the 1920s these powders were improved and the name was changed to IMR. Various different powder are produced and are given numbers to distinguish them. The different types of powder typically have different burning rates.
Pages in category "Gunpowder" The following 36 pages are in this category, out of 36 total. This list may not reflect recent changes. ...
Innumerable enemies of Nagraj have appeared in Nagraj's comics; many died, but some lived on to appear again. Here is the list of Nagraj's major enemies that are still alive and who can be expected to make a comeback in future issues: Professor Nagmani: Nagraj's so-called creator who brought up Nagraj. Thodanga: A strange African creature. He ...
The world's earliest known hand cannon is the Heilongjiang hand cannon dated 1288, which was found in Mongol-held Manchuria. [4] In his 1341 poem, The Iron Cannon Affair , one of the first accounts of the use of gunpowder artillery in China, Xian Zhang wrote that a cannonball fired from an eruptor could "pierce the heart or belly when it ...
Gunpowder (4 C, 36 P) L. Laundry detergents (40 P) M. Magic powders (4 P) R. Regolith (3 C, 11 P) S. Snow (11 C, 53 P) Pages in category "Powders" The following 71 ...