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Under the Dutch version the first microscope was invented by the eyeglass maker named Zaccharias Janssen,
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according to the Italian version the first microscope was invented by Galileo.
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Robert Hooke invented the first compound microscope in which the lens systems and objective lenses are used for viewing.
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Robert hooke & Malpighi publish the first books of the first discoveries in his microscope and of Harvey's theory of the blood traffic after having observed to the microscope the blood capillaries
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The Dutch Antoni Van Leeuvenhoek using simple microscopes of own manufacture it described for the first time protozoos, bacteria, sperms and red blood cells.
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Arose the more importants improvements of th optics.
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Richard Zsigmondy develops the ultramicroscope and is able to study objects below the wavelength of light.
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Max Knoll y Ernst Ruska develops the first type of electronic microscope that uses a bundle of electrons instead of light to focus the sample.
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It's develop the electronic microscope of sweep.
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Gerd Binnig and Heinrich Rohrer invent the scanning tunneling microscope that gives three-dimensional images of objects down to the atomic level.