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Nov 24, 1300
The invention of spectacles
The invention of spectacles were made at the end of the 13th century.(glasses) -
several lenses in a tube,
About 1590, two Dutch spectacle-makers, Zaccharias Janssen and his son Hans, while experimenting with several lenses in a tube, discovered that nearby objects appeared greatly enlarged. -
focusing device.
In 1609, Galileo worked out the principles of lenses, and made a much better instrument with a focusing device. -
Robert Hooke discovered cells under a microscope.
Robert Hooke discovered cells under a microscope in 1665. He took a sliver of cork and called the small encasements he saw, cells. They were dead cells, though.
The first person to see living cells, was a man named Anton van Leeuwenhoek. He took pond water and observed that under a microscope. -
Hooke made a copy of Leeunwenhoek's microscope and then improved upon his design.
Robert Hooke (1635-1703), the English father of microscopy, re-confirmed Anthony van Leeuwenhoek's discoveries of the existence of tiny living organisms in a drop of water. Hooke made a copy of Leeunwenhoek's microscope and then improved upon his design. -
magnifying glasses were used to count the threads in cloth.
The father of microscopy, Anthony Leeuwenhoek of Holland (1632-1723), started as an apprentice in a dry goods store where magnifying glasses were used to count the threads in cloth. -
Blood seen for the first time
Anthony Leeuwenhoek became more involved in science and with his new improved microscope was able to see things that no man had ever seen before. He saw bacteria, yeast, blood cells and many tiny animals swimming about in a drop of water. From his great contributions, many discoveries and research papers, Anthony Leeuwenhoek (1632-1723) has since been called the "Father of Microscopy". -
marvelous microscopes built by the American, Charles A. Spencer
marvelous microscopes built by the American, Charles A. Spencer (1813-1881) -
phase-contrast microscope
Frits Zernike invents the phase-contrast microscope that allows the study of colorless and transparent biological materials. -
electron microscope.
Ernst Ruska develops the electron microscope. The ability to use electrons in microscopy greatly improves the resolution and greatly expands the borders of exploration. -
The first test tube baby
The first test tube baby, Louise Brown, was born in the UK in July 1978. Her mother Leslie Brown died last month. -
tunneling microscope
Gerd Binnig and Heinrich Rohrer invent the scanning tunneling microscope that gives three-dimensional images of objects down to the atomic level. -
The invention of the electron microscope in the 1930's
one of the best microscopes in the world