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23 St. 50 Min, 31 März 1931 Jahr - Electron Microscope
Beschreibung:
Max Knott and Ernst Ruska co-invented it to magnify an image.
Zugefügt zum Band der Zeit:
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Michael O'Brien
14 Sep 2017
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23 St. 50 Min, 31 März 1931 Jahr
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~ 94 years ago
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