Using an Electron Microscope to Photograph a Needle in an LP Groove

#Science

Wed, Jun 17th, 2015 11:00 by capnasty NEWS

Sure to make your nearest hipster squeal with delight, Dangerous Minds showcases this video by Applied Sciences who used an electron microscope to photograph a record player's needle travelling through the grooves of an LP. The detail is pretty astonishing.

Among the difficulties that Ben Krasnow, the man behind the Applied Science channel, had to overcome were that a small square of the vinyl LP had to be carved out in order to fit it into the microscope chamber, and the LP had to be coated in a conductive material (evaporated silver) to avoid a circumstance whereby the electrons fired at its surface by the microscope would be absorbed, trapped, and eventually repelled.

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