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The Magic Cafe Forum Index » » Seeing is believing » » Water standing still (0 Likes) Printer Friendly Version

jay leslie
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Southern California
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A video camera, recording at the same speed as the soundwave, to make the water look like it's not moving BUT

How the sound makes the water stair-step is a mystery

http://games.yahoo.com/blogs/plugged-in/......014.html
BigWheel
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I suspect the effect is not as amazing without the 24 frames per second camera shots. This is a similar principal to what Edgerton did with the strobe light

http://en.wikipedia.org/wiki/Harold_Eugene_Edgerton

and

http://www.youtube.com/watch?v=OtxlQTmx1LE
WilburrUK
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Quote:
On 2013-03-13 13:06, jay leslie wrote:
A video camera, recording at the same speed as the soundwave, to make the water look like it's not moving BUT

How the sound makes the water stair-step is a mystery

http://games.yahoo.com/blogs/plugged-in/......014.html


Does look impressive. But I don't think the water is "stair-stepping", it's more that it's a helix being viewed in 2 dimensions so it looks a bit like it takes sharp bends.

This is clearer in the 23 and 25 hz versions
InstantMagicBen
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This is something I want to try! really interesting and impressive, and a great science lesson for the kids!
Simon Layland
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I can do this in yellow
VMids
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Wow!
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