Visualization of Sound With Water

Visualization of Sound With Water 

My demonstration involved a subwoofer with a tube pressed against it, several feet off the ground.

    A 30 Hz sine wave tone is played through the subwoofer, and as the water runs through the moving tube, the water comes out in a waveform. This is purely an illusion, and cannot be seen through the naked eye. For this to work, the camera’s frames per second are equivalent to the frequency of the generated tone-30 frames per second (this can also be done at 24 Hz and 24 frames per second video). This is an example of a traveling wave, which is a wave that travels from one point to another, free of interference and reflection. It is also an example of a transverse wave, where the points oscillate perpendicular to its direction.

I also demonstrated the same principle, but with the subwoofer sideways, and got a similar result. When the tone played through the speaker changed to 29 hz, it appeared as though the waves were traveling back toward the source because everything was out of sync.


When the tone changed to 31 hz, The waves appeared to be traveling away from the source.

Lateral Waves

Vertical Waves

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