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Sibylle Petrak
Calendar IconJoined Apr 14, 2018

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More Posts from Sibylle Petrakshowing 3 of 3

Thumbnail for Happy Birthday, Mr. Carl Zeiss!
Happy Birthday, Mr. Carl Zeiss!
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7y
Thumbnail for How aperture affects image quality
How aperture affects image quality
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7y
Thumbnail for Leeuwenhoek’s Microscope
Leeuwenhoek’s Microscope
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7y

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