The German alchemist Dr. Hennig Brand discovered phosphorus in Hamburg in 1669. He was using the residue from evaporated urine to search for the philosopher's stone, a mythical mineral which was said to be able to turn base metal into gold. Instead he discovered phosphorous. After the painting by Joseph Wright of Derby, 1771. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Terry, Sheila |
Model Release : | Non requis |
Durée : | 10 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |