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Acoustic Levitation Chamber

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This is an acoustic levitation chamber I designed and built in 1987 as a micro-gravity experiment for NASA related subject matter.The 12 inch cubed plexiglas Helmholtz Resonant Cavity has 3 speakers attached to the cube by aluminium acoustic waveguides.By applying a continuous resonant(600Hertz) sound wave, and by adjusting the amplitude and phase relationship amongst the 3 speakers; I was able to control levitation and movement in all 3 (x,y,z) axis of the ambient space.This research was used to show the effects of micro-gravity conditions that exist in the space shuttle environment in orbit, but done here on Earth in a lab.

Channel: Howto & Style
Uploaded: November 30, 1999 at 12:00 am
Author: drdeak

Length: 01:49
Rating: 4.74
Views: 460144

Tags: acoustic  levitation  resonant  waves  

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Video Comments

tangnatalaga (November 30, 1999 at 12:00 am)
Have you heard about the idea of using a high frequency sound that we could not hear as the carrierr frequency for sounds we could here, its an idea for a new kind of speaker. I forgot what it was called.
tangnatalaga (November 30, 1999 at 12:00 am)
You do have to use a certain frequency, and the sound must be intense enough right? My dad(mechanical engineer) once told me that with the right frequency, you can shatter a rock. Is that true? All you expert out there? fizzcow or drdeak.
ivyshiningivy (November 30, 1999 at 12:00 am)
HelloDo you think that the ancients could have had this sort of technology to 'move' huge stones or blocks. Some standing stones are marked with concentric circles. Could this have been a symbol for soundwaves?
PuppyGuts (November 30, 1999 at 12:00 am)
that is amazing, is there a soundtrack. i like that one song, ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
tangnatalaga (November 30, 1999 at 12:00 am)
It says levitation, not anti gravity. Pay attention. If you say it's simple, explain how the object levitate using sound waves. It is not the same way a fan push the air if thats what you are thinking.
aggrippa (November 30, 1999 at 12:00 am)
post another vid when you find a way to propell a vehicle. Much Abliged
aggrippa (November 30, 1999 at 12:00 am)
Your thinking of mag lev or hovering. This is accustic lev. Their pushed together because their are three modules which keep them proppelled in perfect capstasis.
drdeak (November 30, 1999 at 12:00 am)
Well fizzcow you certainly picked a good name for yourself. You're right it's not antigravity, it's anti central gravity. FFOM
tomekw1992 (November 30, 1999 at 12:00 am)
NICE :D
drdeak (November 30, 1999 at 12:00 am)
Seraac, if I were you I would have stopped with Part I. Part II is bogus. Antigravity is what it is from a physics standpoint, no matter what the cause.I repeat it was only an experiment for "simulated" microgravity conditions on earth as requested by NASA.Nothing more, nothing less.Dr. Deak
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