This Curious Gizmo Plays Music Beamed At It From A Flashlight
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Perhaps we're ignorant buffoons, but we had no idea that light waves could carry music and we're a bit in awe.
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Fecha: March 6, 2019 at 06:25PM
via Digg Toys: http://digg.com/video/light-modulator?utm_source=ifttt
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