Brusspup filmed water
going through a speaker running at 24Hz
(link via Hacker News) and the
result is incredible—the water just sits there, in mid-air. As he adjusts
the sound wave, the water appears to move slowly down, then reverses
It is a trick, though it's not special effects—it's all done in real
time with a camera. But it's the camera that causes the
effect—it's acting like a strobe light, catching the action at
just the right moment. And it's still impressive though.
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