Description:  A stream of laser light causes a calcite crystal to spin and move toward a tiny gear, while a second laser beam holds the gear in place. The gear rotates as the crystal moves close enough to agitate the water around it.
Source:  University of Queensland
Story:  Light drives microscopic metal gears
TRN February 21, 2001
TRN Categories:  Microelectromechanical Systems (MEMS)
Form:  Video

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