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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).
Gunpowder blasted the knight class to pieces, the compass opened the world market and established colonies, and printing became a tool of Protestantism. In general, it has become a means of scientific renaissance, and has become the most powerful lever to create the necessary preconditions for spiritual development.
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Gunpowder is very easily ignited by static electricity or lightning strikes, and most powder mills experienced occasional accidental explosions. Powder mill explosions typically destroyed an entire building and killed those working in the vicinity of the building.
Earliest known written formula for gunpowder, from the Wujing Zongyao of 1044 CE. In the history of gunpowder there are a range of theories about the transmission of the knowledge of gunpowder and guns from Imperial China to the rest of the world following the Song, Jin and Yuan dynasties. The earliest bronze guns found in China date back to ...
The Wanggongchang Armory was located about 3 kilometres (1.9 miles) southwest of the Forbidden City, in modern-day central Xicheng District.It was one of the six gunpowder factories administered by the Ministry of Works in the Beijing area, and also one of the main storage facilities of armor, firearms, bows, ammunition, and gunpowder for the Shenjiying defending the capital.
A black powder substitute is a replacement for black powder (gunpowder), primarily used in muzzleloading firearms. Substitutes may have slightly different properties from gunpowder such as: reduced sensitivity as an explosive, increased efficiency as a propellant powder, different density, and/or reduced ignition efficiency.