How to Move Things with Sound/Acoustic Propulsion

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.

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:

See also:

How to Make a Piezoelectric Crystal Speaker

Stirling Engine Explanation, Demos and Experimenting

Hot Neutral and Ground our Funny Looking Household Electrical Socket

And more of my sound related videos:

How to Make Music Instruments with Straws - Trombone and Trumpet

Also see my webpage about moving things with sound and Helmholtz resonance:

Follow behind-the-scenes on:

Music used during construction part:
Licensed under Creative Commons: By Attribution 3.0
ISRC: USUAN1100870

[khellil]

Seriously this is one of the most interesting channels on YouTube.

[AppliedScience]

Nice demo! That's surprisingly good propulsion.

[LieWizard]

Very moving. I like the frequency of your videos.

[NeetchianQueen]

Do you have the frequency of granite, for its movement? Does this change with size or shape of object?

[jezsutton]

Fantastic, many thanks.
The kids at school will get to play with this soon!

[brfisher]

Did you know that with infrasonic speakers and a piece of paper you can actually calculate the infrasound's frequency just by seeing how many times the paper moves in one second? You should do a video on sound, infrasound and ultrasound.

[MilanKarakas]

Excellent demonstration of the Helmholtz resonance and a propulsion using sound.

Thank you for posting this video. Liked, subscribed, shared.

[JoeQuinn-Sott-net]

So to move a rock in this way do you have to hollow it out and make it into the shape of a coke bottle and then blow across the top to get the resonant frequency?

[bitluni]

Can you explain why we have an acceleration? The bottle pushes air out and same amount in again so it's the same mass.

[TheDarkKRoo]

Now if we can just make a screwdriver with this technology.

[debunkified]

How does the air continually pour into the bottle if the bottle is constantly pushing the air of it?

[EMandMORE]

awesome, just awesome. thank you for all your astonishing works

[vmwindustries]

Thank you for your hard work. The video was wicked. Love the vortex rings, and explanation of how it works. Also, great idea showing the book, and the software so I can try it as well! Thanks again!

[Skynet_the_AI]

1st time viewer... Amazing and Interestingly awesome learning video. Well demonstrated while simply and thoroughly explained. Awesome content sir.
:D

[OverlandOne]

Excellent demonstration and very cool.  One thing I do not understand...a pulse-jet uses pedal valves to let new air enter the chamber so how does the air get back inside the bottles to once again exit? The entire container is resonating, like squeezing gently and releasing forcing the air out.  When/how does new air enter?  You videos are always excellent and very thought provoking.
Thanks,

Bill

[afulwind]

Let's see if you still read comments....
i had an idea concerning the use of resonance and propulsion... this video hits on some of the points... so my thought was to build a resonant cavity and place a tuning fork/rod in the hollow of the cavity and adjust the tuning by extending or retracting the rod into the open cavity from a sleeved regulator that has a striker to set the rod to vibrating... If i were to use this resonance to move air past a few venturi's to cause greater amounts of air to flow over and beneath an airfoil and generate lift without electric motors or propellers or even edfs...

What so you think could it possibly work and if so could it be scaled up large enough to move cargo etc....

[NevinWilliams]

Great clip!

I'd always thought "Find Zero Crossings" was a function like "Show clipping", or "Beat Finder", but but only 'found' them in some other view I wasn't using.  I'd not have guessed it had anything to do with selections.  

[spareaccount]

Is it possible to move big things/structures like bigger rocks or megalith with sound? I suspect that ancient egyptians used this sound technique to move megaliths

[debunkified]

Is there an opposite and equal reaction of some kind concerning the speaker itself? How does it compare to the bottles? Thanks.

[rccapps]

I haven't seen a video you've made that I haven't liked, but this one is especially good. Thanks for all the work you put into it.