31 dez 700 ano antes da era comum - Chinese created gun powder
Descrição:
Gunpowder, also known as black powder to distinguish it from modern smokeless gunpowder, is the earliest known chemical explosive. It consists of a mixture of sulfur, charcoal, and potassium nitrate. The sulfur and charcoal act as fuels while the saltpeter is an oxidizer. Because of its incendiary properties and the amount of heat and gas volume that it generates, gunpowder has been widely used as a propellant in firearms, rockets, fireworks, and as a blasting powder in quarrying, mining, and road building.
Adicionado na linha do tempo:
Data:
31 dez 700 ano antes da era comum
Agora
~ 2727 years ago
Imagens:
Geo-tags: