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Hans and Zacharias Janssen
He contributed to science by enventing the microscope. -
Robert Hooke
He contributed to science by writing the book "Micrographia", in which he coined the term "cell" for a basic biological structure. He also invented a reflecting microscope, the universal joint, and a variety of clocks, and optical devices. Hooke was one of the first to recognize a double star; and he also proposed a wave theory of light. He lectured on comets and earthquakes, and noted the relationship between a falling barometer and an approaching storm. -
Antony van Leeuwenhoek
He was the first to record living bacteria. -
Matthias Schleiden
A German botanist and co-founder of the cell theory -
Theodor Schwann
He discovered the gasttric juice pepsin, a digestive enzyme for protein. -
Rudolf Virchow
Founded the Archiv fur Pathologische und Physiologie (now known as "Virchow's Archives").
