History of Microscope.
About 1590, two dutch spectacles makers, zacharias ,Janssen and his son Hans, while experimenting with several lenses in a tube , discovered that nearby objects appeared greatly enlarged. That was the beginning of compound Microscopes and Telescope. In 1609, galileo, worked out the principales of lenses, and made a much better instrument with a focusing device. Antony van Leeuwenhoek (1632-1723), also known as "The father of microscopy" developed new methods for grindling and the magnifying capacity of lenses manifolds . He was the first to see and describe bacteria, yeast,plants,the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries.
Robert hooke, "The father of cytology", re-confirmed leeuwenhoek's discoveries and made a copy of Leeuwenkoek's light microscope and then improved upon his design.
Later, in the middle of the 19th century charles A.
Spencher, further improved light microscopes. Present day instuments, changed but little, give magnifications upto 1250 times with ordinary light, an electron beam can also be used more effectively to magnify the images . Two german workers, Max-Knoll and Ernst Ruska in 1931, invented the first electron microscope. For this discovery, they were awarded Nobel Prize for Physics in 1986.
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About 1590, two dutch spectacles makers, zacharias ,Janssen and his son Hans, while experimenting with several lenses in a tube , discovered that nearby objects appeared greatly enlarged. That was the beginning of compound Microscopes and Telescope. In 1609, galileo, worked out the principales of lenses, and made a much better instrument with a focusing device. Antony van Leeuwenhoek (1632-1723), also known as "The father of microscopy" developed new methods for grindling and the magnifying capacity of lenses manifolds . He was the first to see and describe bacteria, yeast,plants,the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries.
Robert hooke, "The father of cytology", re-confirmed leeuwenhoek's discoveries and made a copy of Leeuwenkoek's light microscope and then improved upon his design.
Later, in the middle of the 19th century charles A.
Spencher, further improved light microscopes. Present day instuments, changed but little, give magnifications upto 1250 times with ordinary light, an electron beam can also be used more effectively to magnify the images . Two german workers, Max-Knoll and Ernst Ruska in 1931, invented the first electron microscope. For this discovery, they were awarded Nobel Prize for Physics in 1986.
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