MHB Watch Amazing Water Flow Visualizations - From brusspup!

AI Thread Summary
The discussion centers around a video showcasing water flow effects created by sound. Participants express curiosity about the setup, particularly the positioning of the speaker, questioning whether it is placed to the side or below the water. The key point is that the camera captures images at 24Hz, which aligns with the speaker's ability to induce water drops at the same frequency, creating the illusion of stationary flow. When the frequency is adjusted to 23Hz, the flow appears to reverse, highlighting the relationship between sound frequency and visual perception of water movement.
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Interesting video! I don't quite get the set up though. Is the speaker only to the side or is it below as well? I don't see how they get the reverse flow effect. :confused:
 
Jameson said:
Interesting video! I don't quite get the set up though. Is the speaker only to the side or is it below as well? I don't see how they get the reverse flow effect. :confused:
Presumably the camera takes images at the rate of 24Hz. The speaker somehow induces the water to form drops at the same rate, so that the flow appears to become stationary. If the rate is reduced to 23Hz then the flow appears to go into reverse.
 
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