22 déc. 1769 - Joseph Priestly ( Late 1700's)
Description:
Joseph Priestly was the very first person to isolate oxygen scientifically. Priestly performed an experiment that showed that plants produce oxygen. He put a mint plant in a closed container with a burning candle. The candle flame used up the oxygen and went out. He did not know that oxygen was an element throughout this process. His theory was correct.Ajouté au bande de temps:
Date:
22 déc. 1769
Maintenaint
~ Il y a 255 ans