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The first microscope was invented by Hans and Zacharias Janssen by placing two lenses in a tube.
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Anton van Leeuwenhoek uses a simple microscope to describe blood and insects and was also the first to describe cells and bacteria.
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Microscopes became better and easier to handle, and more and more popular in scientists to use.
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Joseph Jackson Lister discovers that several weak lenses used together at certain distances gave good magnification without blurring the image.
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Richard Zsigmondy develops the ultramicroscope and is able to study objects below the wavelength of light.
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Frits Zernike invents the phase-contrast microscope that allows the study of colorless and transparent materials.
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Ernst Ruska develops the electron microscope.
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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.