How to Move Things with Sound/Acoustic Propulsion

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How to move things with sound, or acoustic propulsion, using the resonance frequency of two soda bottles. I move the two soda bottles using a speaker playing a sound with a frequency of 173 Hz, the Helmholtz resonance frequency of these bottles, the bottles being Helmholtz resonators.

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To see what role the speaker had in this acoustic propulsion, and for an explanation of Helmholtz resonance, see my "Why Blowing in Bottles Makes Sound and Helmholtz Resonance" video:
http://youtu.be/PZVeJ2rh6ts

See also:

How to Make a Piezoelectric Crystal Speaker
http://youtu.be/R7zjfaPKMSE

Stirling Engine Explanation, Demos and Experimenting
http://youtu.be/H1IkVMSBMRg

Hot Neutral and Ground our Funny Looking Household Electrical Socket
http://youtu.be/k3OHzKz0qNc

And more of my sound related videos:

How to Make Music Instruments with Straws - Trombone and Trumpet
http://youtu.be/8zrsx8V8XwQ

Also see my webpage about moving things with sound and Helmholtz resonance:
http://rimstar.org/science_electronics_projects/moving_things_with_sound_helmholtz_resonance.htm

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Music used during construction part:
Bicycle Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
ISRC: USUAN1100870
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