In 1677, just twenty years after William Harvey's death, Dutch scientist Antonie van Leeuwenhoek created a microscope powerful enough to magnify the sperm found in semen. Because Harvey could not ...
This story appears in the September 2019 issue of National Geographic magazine. In hopes of seeing why a peppercorn tastes peppery, Antonie van Leeuwenhoek (1632-1723) soaked one in water and put ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback