This is a Crookes Radiometer. An old physics department staple. What does it do? On exposure to light or heat, the vanes turn on a low friction mount. Here a green laser (14 mW green and 9 mW infrared) starts it turning.
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Ain’t this just like “the cow jumps over the moon“? A simple shot of Tesla coil sparks framing the full moon in the background.
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Briefcase Tesla coil
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Creatures on hands
Internal Links related:
Dalek Cage
External:
the cow jumps over the moon Wiki
Moonlight Google+ post: Aug 8, 2011
Photo Date: April 11, 2009