Jan Baptiste Van Helmont (1 janv. 1580 – 1 janv. 1644)
Description:
Jan Baptiste van Helmont (1580-1644). He partially discovered the process of photosynthesis. He grew a willow tree in a weighed amount of soil. After five years, he discovered that the willow tree weighed about 74 kg more than it did at the start.Ajouté au bande de temps:
Date:
1 janv. 1580
1 janv. 1644
~ 64 years