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Zaccharias Janssen and his son Hans Janssen were Dutch spectacle and glass makers. They realized that if you put lens into a tube, the object the tube was aiming at was drastically altered. They created the first compound microscope, which has two lens.
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Robert Hooke looked at a small piece of cork in a microscope. It looked like tiny monk abodes, so he called it cells. But his microscopes were very bad quality.
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He tried grinding and polishing the lens of a microscope. The result was a lens that could magnify objects 300 times their size! He was know as the 'Father of Microscopy' because of his breakthroughs in the subject. He created more than 240 microscopes.
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