Acoustic Energy & Surprising Ways To Harness It (Intro To Thermoacoustics)

Acoustic Energy & Surprising Ways To Harness It (Intro To Thermoacoustics)

NightHawkInLight

3 года назад

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Trent Stewart
Trent Stewart - 23.09.2023 19:26

Super cool stuff. Great video

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Charles Tyree
Charles Tyree - 18.09.2023 03:31

That's crazy cool! 🎉

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James A
James A - 05.09.2023 09:50

You're rubber membrane with a magnet and coil is basically a backwards engineered speaker. So I wonder if you could just use a small speaker instead. More windings.

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David Strickler
David Strickler - 05.09.2023 05:17

That reminds me of something caterpillar was working on when i was a child. Acoustical cancellation. A way to make engines silent. Something to do with an equal opposing sound wave. It worked kind of. But had some limitations.

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PJ Martin
PJ Martin - 04.09.2023 09:55

Excellent teaching skills. So much knowledge, about subjects/concepts that obviously excite you, clearly conveyed through explanation and demonstration. All while avoiding any condescension. Truly a marketable skill set you have sir. Thank you for your contributions.

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Arthur Moore
Arthur Moore - 02.09.2023 18:14

What's fun is as I watched this my EE classes kept coming back to me. As soon as you explained the positioning and how the 2nd tube was 1/2 the length, my first thought was it being a harmonic. When you explained the drum skin's effect I immediately thought of impedance matching and how adding things can change the impedance of the overall system. It's not a perfect analog, but works really well.

Of course, as many EE's will tell you, high frequency RF is black magic, so I'm definitely not an expert.

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Michael Davis
Michael Davis - 23.08.2023 07:48

Friction on the magnet the will just rub the copper on the bulb

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Cool stuff
Cool stuff - 22.08.2023 13:14

Excellent explanation and well paced delivery; you're a great professor!

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Geoffry Gifari
Geoffry Gifari - 21.08.2023 18:29

a good thing about its simple, tubular design is that many thermoacoustic tubes can be stacked together and joined for greater power

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Rough Woof
Rough Woof - 19.08.2023 02:22

YOU CLAIM TO READ ALL OF YOUR COMMENTS. COULD YOU PLEASE ANSWER THIS QUESTION? How quickly does the velocity of sound change when you change the temperature? Does it gradually slow down or instantly change?

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Hermes Flores
Hermes Flores - 11.08.2023 23:57

Woow Sir you make me interest in all your videos from the begining to the end!

P. D. Please forgive my english. English is not my first lenguage and is not that good.

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David Pocock
David Pocock - 09.08.2023 15:14

Beats, like humming alongside your hoover lol

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Heckler
Heckler - 30.07.2023 10:55

Is there any feasible way way to produce hydrogen with sound?

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Jose Miguel Lobo
Jose Miguel Lobo - 25.07.2023 18:48

Amazing, thank you.

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Krzysztof Schabowski
Krzysztof Schabowski - 09.07.2023 00:47

I have some ideas but that doesn't mean that they would work :D
1. I wonder if it would be possible to make one using sunlight to heat the tube and water to cool it. The part that should be heated could be covered in some kind of high temperature resistant black paint or just some lamp black (outside the tube or inside it, what would work better ?). Sunlight could be concentrated with a magnifying glass or some kind of bigger lens in case of a bigger project. Part that should be cooled could have a similar solution to the one you used. I know that by using sunlight you would have to frequently adjust the lens during the day, but I bet that there's some kind of flat lens (like those plastic fresnel lenses) that collects light from a certain range of angles on one side and turns it into a stream of light that always runs perpendicularly to the sheet of the lens on the other side. Then the only thing you'd have to move is the position of the flat lens for most of the time, and I think that you'd have to do that less often than moving the magnifying glass without the flat lens. Of course you could lose some of the energy if the flat lens is a bit opaque like some kinds of plastic lenses. I know, it's not perfect, but maybe? You could scale it up and make an engine out of it or generate electricity - I know there are more efficient modern ways to do it, but it doesn't mean that it cannot be done for fun or to prove or disprove the concept :D

2. The other one is a bit crazy :D. A pipe organ that is made using thermoacoustics. Either a smaller one that runs on electricity to heat the air in every tube for every tone (like you showed in the video) or a crazy big one using big tanks of water to cool the tubes/pipes and a big rocket stove to heat them :D

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Jeff Benefield
Jeff Benefield - 06.07.2023 14:21

What were the frequencies generated? Individual and "beats".

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Noxulous
Noxulous - 04.07.2023 03:43

those lights may need a higher input voltage than that engine produces, or maybe a higher amperage, mayhaps try LED's next time?

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DNA
DNA - 04.07.2023 02:24

That was absolutely fascinating...thanks man

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Chris Chiaverina
Chris Chiaverina - 24.06.2023 23:36

I love your videos. Great ideas and demos. Now for a comment and question. I've tried to reproduce the horizontal test tube singing tube and thermoacoustic engine shown in your video but have failed to make either work. That's not quite true. I've been able to make the singing tube produce a loud sound but I had to use a cook's butane torch. After many tries, I've still not been able to make the test tube sing using an alcohol burner. Could you suggest what I may be doing wrong?

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Burak C.
Burak C. - 09.06.2023 20:42

that little smile of accomplishment

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চৌধুরী তাহমিম
চৌধুরী তাহমিম - 18.05.2023 16:45

why sound? why not light?
Light is the very first neighbour of infrared

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DLAROC
DLAROC - 12.05.2023 12:00

I cause vibrating in my pants when i release heated air.. Thermoacoustics.

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John O Stambaugh
John O Stambaugh - 12.05.2023 10:28

I remember a short narrow piece of pipe thar produced high heat and cold from two different holes or the pipe used in a science school class. I have not been able to purchase or make one. Do you know of such a device?

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JerryRigEverything
JerryRigEverything - 05.05.2023 02:36

Super cool! They also use sound waves to cool the camera sensors in the James Webb telescope.

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salinora0
salinora0 - 03.05.2023 16:58

i'm surprised this dude hasnt made a video on stirling engines

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Joe Dee
Joe Dee - 30.04.2023 21:17

A really complicated way to explain a simple phenomena.
Why not speak to a flute player or maker or have a go yourself making flutes

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Levii_i
Levii_i - 28.04.2023 23:34

is it possible to make the horizontal thermoacoustic effect using a simple/normal candle?

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Soezere
Soezere - 26.04.2023 13:15

Your videos are always awesome man. Thank you

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C
C - 25.04.2023 01:45

I wonder if a principle like this exists to pull energy out of the "heat" of virtual particles

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Lawrence Thompson
Lawrence Thompson - 23.04.2023 19:17

This looks like a great way to extract energy from wasted heat from car engines or furnaces. This could generate electricity to recharge the battery and operate electronics and lights for a car. The alternator which robs power from the engine would not need to to rob as much power making the engine use less fuel.

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Chris Brooks
Chris Brooks - 22.04.2023 08:41

Why didn’t you play with the angle of the pipe?

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Rogue Art
Rogue Art - 21.04.2023 21:24

Excellent video...very detailed...you actually explained how it works.
Thanks a million!

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urban bengtsson
urban bengtsson - 21.04.2023 17:13

He sounds like an american and yet he measures with the metric system. Nice !!! For those who are not enlighted - 25 mm is about one inch.

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Baybars Baltacıoğlu
Baybars Baltacıoğlu - 13.04.2023 20:22

dude this is very cool

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Gears Of Inspiration
Gears Of Inspiration - 13.04.2023 03:05

That bird is so cute. Also would be interesting if could make something like an air organ with thermoacustocs

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The TruManZoo
The TruManZoo - 08.04.2023 10:54

question is does the magnet vibrate when we put electricity through the placed coil around it? does is work back the other way around as well? maybe a pancake coil would work better?

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JanoschNr1
JanoschNr1 - 03.04.2023 16:33

Imagine in the future you have to sing a song in the mornin to drive your car

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Tigran Avemian
Tigran Avemian - 01.04.2023 21:10

Interesting. Why you didn't measure AC voltage on coil to see how much it creates ...

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RaRanænu
RaRanænu - 01.04.2023 18:25

When you have a thought or feeling change how something really sounds and really is then you'll know what's really happening

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RaRanænu
RaRanænu - 01.04.2023 18:17

Cool

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Leaf Jr
Leaf Jr - 30.03.2023 16:12

Made it bigger

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Ronald Peterson
Ronald Peterson - 29.03.2023 02:07

You made the very most coolest video on the internet! I have read so much about this. It is fascinating to me. I have never seen such a wonderful demonstration. The chalkboard is interesting, but real life is so much better.

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lincoln jeon
lincoln jeon - 28.03.2023 23:01

THIS IS CRAZY.
looking learbn a lot more.

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lincoln jeon
lincoln jeon - 28.03.2023 22:52

i think if you get a thermal camera and do this it would be 30% BETTER.

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Skeeter Bug
Skeeter Bug - 27.03.2023 17:18

Thanks!

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Péter Erdősi
Péter Erdősi - 27.03.2023 08:02

you should try a red LED, and/or a current meter ;)

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Bungalow Juice
Bungalow Juice - 27.03.2023 02:19

You telling me I can literally give someone a burn?

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DreDugz
DreDugz - 26.03.2023 18:31

Multimeter

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