29 Apr '14, 2pm

A DIY Atomic Force Microscope

Instead of shooting light or electrons at an object and picking up the reflections, an atomic force microscope drags a very, very tiny stylus across an object. This stylus is attached to a probe that will reflect laser light off of it into a photosensor, eventually rendering an image on a display. [whoand] is using a laser diode and pickup unit from a DVD-ROM drive for the optical pickup unit, a frame made from soldered together PCBs, and a few piezos to vibrate the probe.

Full article: http://hackaday.com/2014/04/29/a-diy-atomic-force-microsc...

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Archive Photo of the Day: 'Atomic cannon' crew, 1956. #pod #photography

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Bad Kreuznach, West Germany, September, 1956: Soldiers from Battery C's 2nd Gun Platoon, 264th Field Artillery Battalion w...