Candle in a bell jar. The candle has extinguished,showing that the oxygen inside the jar has been used up. This is a recreation of an experiment by Joseph Priestley (1733-1804). Although Priestley's explanation of the phenomenon was incorrect he did later manage to isolate oxygen from air | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3663 px × 4886 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |