Jan Baptist van Helmont (bapt. 12 January 1579 – 30 December 1644) was an early modern period Flemish chemist, physiologist, and physician. He worked during the years just after Paracelsus and iatrochemistry, and is sometimes considered to be "the founder of pneumatic chemistry". Van Helmont is remembered today largely for his ideas on spontaneous generation, his 5-year tree experiment, and his introduction of the word "gas" (from the Greek word chaos) into the vocabulary of scientists.
Read more about Jan Baptist Van Helmont: Early Life and Education, Career As Chemistry Pioneer, Religious and Philosophical Opinions, Observations About Digestion, Portrait Discovered, For Further Reading
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