Helmont, Jan Baptista Van
Belgian scientist
Jan Baptista van Helmont, Jan also spelled Joannes, (born Jan. 12, 1580 [1579, Old Style], Brussels [Belg.]—died Dec. 30, 1644, Vilvoorde, Spanish Netherlands [Belg.]), Flemish physician, philosopher, mystic, and chemist who recognized the existence of discrete gases and identified carbon dioxide.
What's Your Reaction?