Nicolas Hartsoeker
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Nicolas Hartsoeker (Gouda, 1656 - Utrecht 1725) was a Dutch mathematician and physicist and a pupil of Huygens. He invented the screw-barrel simple microscope circa 1694.
Also in 1694, while observing human sperm through a microscope, Hartsoeker believed that he saw tiny men inside the sperm, which he called homunculi or animalcules. This led him to formulate the Spermist theory of conception.
[edit] Bibliography
- Essai de dioptrique, 1694
- Principes de physique, 1696
- Traité de physique, 1696.
