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'Science GIFs' was one of the largest and most active science-oriented collections on the Google+ social network with over 325,000 followers at the time of its shutting down. This website serves as a backup of the content from the collection.

https://plus.google.com/collection/A2NSc

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Cutting steel under an electron microscope

18 March 2016

Unlike conventional light-based microscopes, electron microscopes use a beam of electrons to image a specimen. Because electrons are much smaller (~2.8 femtometers) than the wavelength of visible-light photons (400-800 nanometers), they are capable of producing much higher-resolution images.

Here a piece of steel is being cut by a titanium-coated carbide blade with a tip radius of approximately 200µm. As the piece of steel is pressed against the blade the rough upper layer is sheared away to produce a smooth surface.

Source: https://youtu.be/mRuSYQ5Npek

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Cutting steel under an electron microscope