levitating water with speaker

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#8
walking/wandering subs.... it's vibration energy that reduces friction and allows the box to creep along, what if tuning forks attached to a stone block could be tuned to allow the same thing to happen if the friction is reduced would it be possible to simply "glide" to stone along? (this may indicate too much morning scotch...)
 
#11
phase_accurate said:
I would say the levitation is not done acoustically but the modulation of the shape is.

Regards

Charles
Click to expand...

I wondered the same thing - water drops, being diamagnetic, could be levitated by a very strong magnetic fields. But, as explained in the ScienceAlert page referenced below,

Of course, what you're seeing here is acoustic levitation, which involves using two sound waves to create a column of standing waves. These standing waves have peaks that oscillate between high and low pressure, but they also have a mid-point in each wave where the pressure doesn't change at all. This creates a little sweet spot where something light, such as a styrofoam ball or a water droplet, can float, constantly being bumped up against the force of gravity by the standing wave below it.

Alex
 
#12
Tom Danley (sort of) has already done this

One of his earliest patents, if I remember correctly, is using sound waves to levitate molten material (silicon?) for some techy purpose or another. The man is a veritable genius in ramming sound through unconventional ducts. He will go far, I tell you 😀
 
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