Heat sensitive sand display

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Heat sensitive sand display

Postby Harry Dalek » Sun Feb 24, 2013 9:36 pm

I came across this some time ago just found the photo again i recall it was heat sensitive sand or powder of some sort .
kcface1_800.JPG (125.17 KiB) Viewed 1404 times
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Harry Dalek
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