What year did Anton van Leeuwenhoek make his contribution?

Answer 1

Antonie van Leeuwenhoek (October 24, 1632 -- August 26, 1723) was a Dutch businessman who devoted much of his life to developing the microscope and investigating microorganisms.

He was born in Delft, a city in the province of South Holland in the Netherlands. He also died in Delft. Except for the six years he spent in Amsterdam as an apprentice, he spent his entire life in Delft.

Answer 2

The "father of microscopy", van Leeuwenhoek discovered bacteria, free-living and parasitic microscopic protists, sperm cells, blood cells, microscopic nematodes and rotifers, and much more.

He made single-lens microscopes with exquisite lenses; with them he became the first person to see ciliated protists, which he called "animalcules" and "wretched beasties."

Answer 3

Anton van Leeuwenhoek made active contributions to science over a period of half a century, from 1673 up to his death in 1723. His interest in microscopy began with the low-power (x3) lenses used for inspecting textiles. He developed techniques for constructing lenses of his own, and in his lifetime made more than 500 microscopes. A few have survived to the present, and have magnifications up to x 275.

In 1673 van Leeuwenhoek began his correspondence with the Royal Society of London. This series of letters continued for 50 years. In 1674 he became the first to observe and describe single-celled organisms, which at that time were unknown. He called them "animalcules". Two years later, he discovered bacteria. In 1677 he became the first to observe spermatozoa, and in 1684 the first to describe the banded pattern of muscle cells, which we now know to be caused by the arrangement of the cells' components, especially the proteins actin and myosin. Anton van Leeuwenhoek may have been inspired by Robert Hooke's book Micrographia to turn lenses on life forms. After some doubt about whether he was a reliable observer, the Royal Society created him a Fellow (FRS) in 1680.

Answer 4

A type of drop glass microscope that was the most advanced microscope of it's time. With this microscope he observed many microorganisms such as protists, and small animals like rotifers, for the first time and made many detailed drawings that were sent to to the Royal Society. Unfortunately he let the technique of his microscope making die with him and this technique was nor rediscovered for many years to come.

I thought I had answered this yesterday.

Answer 5

Anton Van Leeuwenhoek was the first person to see a cell under a telescope and made the cell theory in 1674.

Answer 6

1609