Gunpowder explosion. Gunpowder exploding in a ball of metal gauze. Gunpowder was known in China by the 10th century AD. It is a mixture of 75% potassium nitrate,15% charcoal and 10% sulphur. It burns very rapidly,and the gases produced cause an increase in pressure leading to explosion | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lawry, Lawrence |
Bildgröße: | 3100 px × 4577 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |