21 ottob 1803 anni - John Dalton
Descrizione:
- John Dalton was born in Eaglesfeild, UK- Dalton theorized that all particles were combined in set ratios that could not be altered. He proved this by combining oxygen with nitric acid and placing them in a container with water and leaving it covered. He would uncover that particles themselves had set ratios, but after being combined, that ratio would not be the same any more.
Aggiunto al nastro di tempo:
Data:
21 ottob 1803 anni
Adesso
~ 222 years ago