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24 hz sine wave and water
Old video, lots of views, so you may have seen this already. Like the old 80s song says, she blinded me with science:
Comments
In addition to being kind of cool, this video may also make you have to go wee wee.
the frame rate it is shot at is what it is all about
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Meanwhile, the next door neighbor's dog is in agony
Carrier and modulator.
I get that. It is like filming with a synchronized strobe light.
But what does this look like live, just chaotic water flinging about?
Any scientist/physicist know why the wavelength of the 24 Hz sound wave manifests in such short wavelengths in the water?
Wavelength for a 24 Hz soundwave is around 565 feet, or like 14.3 meters. The video has wavelengths of a few inches being created. I don’t get it.
Think it's more to do with the frame rate of the camera (24fps). The tone is indeed vibrating the stream of water but it's the rate of capture that makes it look like that. 30fps camera and a 30hz tone would likely produce a similar effect.
I think it looks too perfect and am erring to towards it being a clever cheat. As a 3D graphics artist, I think I could produce a similar effect, but it is admittedly well done.
OK, at first it seemed mystical, but then I finally noticed it's just the tube being swung by the speaker vibration. You can create the same kind of twisty stream pattern by swinging a running hose around in a small circle. The rest of the trippyness is just the strobe effect of the camera capture at 24fps.
Definitely cool to watch, but not as mysterious as it first appeared to me. I still remember the first time I messed about with a strobe light on the bathroom sink and shower. I wonder what my parents must have been thinking about me being in the bathroom for so long.
Here's a video that shows a comparison of the "normal" FPS and the 24 FPS. Even though it's a trick of sorts, it's still a neat trick. The underlying components of music are far more interesting than the surface elements.