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feb 3, 1937 - SEM (Scanning Electron Microscope) invented

Description:

Manfred von Ardenne developed the first scanning electron microscope. hey had a maximum magnification of about x100,000. The SEM is used to produce images of the surface of cells and small organisms.

Added to timeline:

Date:

feb 3, 1937
Now
~ 89 years ago

Images: