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 ...

Perhaps the most significant point to be established in the present volume is the date when Leeuwenhoek first discovered the nucleus of the animal cell. In the printed Dutch and Latin versions of ...

The light microscope was first developed and famously used in the late 1600s by the Dutch naturalist, Antonie van Leeuwenhoek, to look at small pond creatures he called "animalcules." Observations ...

In the 17th century, a Dutch merchant named Antony van Leeuwenhoek began experimenting with making new microscope lenses and, in the process, plunged humanity into a new world—this one teeming with ...

Late 1600s – Dutch scientist Antonie van Leeuwenhoek constructed a microscope with a single spherical lens. It magnified up to ×275. 1800s - the optical quality of lenses increased and the ...

An informative documentary in five parts about the life of the 17th century microbiologist and microscopist Antoni van Leeuwenhoek, and his discoveries in the field of micro-organisms.

Late 1600s – Dutch scientist Antonie van Leeuwenhoek constructed a microscope with a single spherical lens. It magnified up to ×275. 1800s - the optical quality of lenses increased and ...