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Posted By: Joe -PG Music Water experiment - 10/08/16 07:36 PM
Hello PG Forums,

Came across this experiment today, it shows how sound can influence physical matter. Very interesting! Seen below:
Posted By: MarioD Re: Water experiment - 10/08/16 10:02 PM
That was very interesting.
Posted By: GHinCH Re: Water experiment - 10/10/16 01:32 PM
There is a physical connection from the hose to the speaker. So the membrane vibrates the the water outlet. Everything else is "distortion". Use a different number of frames per second and you need other frequencies for the same effects.









(Somewhere in this forum this same video was discussed a couple of years ago.)
Posted By: Pat Marr Re: Water experiment - 10/12/16 07:30 PM
there is also a relationship between the frequency and the frame rate of the camera. When the frames per second match the sonic frequency, the water appears to stop... but its actually just being captured at the same location in the wave...

or somethin' like that.

Here's another interesting experiment that shows a relationship between vibration and physical patterns...



Posted By: rockstar_not Re: Water experiment - 10/13/16 03:34 AM
I hope everyone reading this understands that the stream is not bent. It is merely the frame rate of the videography closely aligning with the "wag" rate of the speaker. It makes for an interesting visual effect, but there is no bending of the stream as the visual effect implies.
Posted By: GHinCH Re: Water experiment - 10/13/16 09:01 AM
The stream is not bent, yes, but the end of the hose is at a different position for each frame. The hose is taped to the speaker cone.

As I wrote above, this was discussed some time ago (2013):
http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=198244&page=2

Here are more evidence showing videos:
https://www.youtube.com/watch?v=UOfAmsQvgg4
https://www.youtube.com/watch?v=_ytAq9sOXMo
https://www.youtube.com/watch?v=H11YqPI25Wg
https://www.youtube.com/watch?v=3y4EaJrJP9w
Posted By: Joe -PG Music Re: Water experiment - 10/13/16 01:59 PM
Incredible videos! - I'm a fan of all sorts of science experiments. Especially ones relating to audio. Thanks for sharing!
Posted By: rockstar_not Re: Water experiment - 10/14/16 03:44 AM
Yes, this is not the first thread this was posted in. I didn't have the energy to retune all of the explanation I gave in that earlier thread.
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