Комментарии:
Super cool stuff. Great video
ОтветитьThat's crazy cool! 🎉
ОтветитьYou'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.
ОтветитьThat 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.
ОтветитьExcellent 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.
ОтветитьWhat'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.
Friction on the magnet the will just rub the copper on the bulb
ОтветитьExcellent explanation and well paced delivery; you're a great professor!
Ответитьa good thing about its simple, tubular design is that many thermoacoustic tubes can be stacked together and joined for greater power
ОтветитьYOU 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?
ОтветитьWoow 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.
Beats, like humming alongside your hoover lol
ОтветитьIs there any feasible way way to produce hydrogen with sound?
ОтветитьAmazing, thank you.
ОтветитьI 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
What were the frequencies generated? Individual and "beats".
Ответитьthose lights may need a higher input voltage than that engine produces, or maybe a higher amperage, mayhaps try LED's next time?
ОтветитьThat was absolutely fascinating...thanks man
ОтветитьI 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?
Ответитьthat little smile of accomplishment
Ответитьwhy sound? why not light?
Light is the very first neighbour of infrared
I cause vibrating in my pants when i release heated air.. Thermoacoustics.
ОтветитьI 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?
ОтветитьSuper cool! They also use sound waves to cool the camera sensors in the James Webb telescope.
Ответитьi'm surprised this dude hasnt made a video on stirling engines
ОтветитьA really complicated way to explain a simple phenomena.
Why not speak to a flute player or maker or have a go yourself making flutes
is it possible to make the horizontal thermoacoustic effect using a simple/normal candle?
ОтветитьYour videos are always awesome man. Thank you
ОтветитьI wonder if a principle like this exists to pull energy out of the "heat" of virtual particles
ОтветитьThis 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.
ОтветитьWhy didn’t you play with the angle of the pipe?
ОтветитьExcellent video...very detailed...you actually explained how it works.
Thanks a million!
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.
Ответитьdude this is very cool
ОтветитьThat bird is so cute. Also would be interesting if could make something like an air organ with thermoacustocs
Ответитьquestion 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?
ОтветитьImagine in the future you have to sing a song in the mornin to drive your car
ОтветитьInteresting. Why you didn't measure AC voltage on coil to see how much it creates ...
ОтветитьWhen you have a thought or feeling change how something really sounds and really is then you'll know what's really happening
ОтветитьCool
ОтветитьMade it bigger
ОтветитьYou 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.
ОтветитьTHIS IS CRAZY.
looking learbn a lot more.
i think if you get a thermal camera and do this it would be 30% BETTER.
ОтветитьThanks!
Ответитьyou should try a red LED, and/or a current meter ;)
ОтветитьYou telling me I can literally give someone a burn?
ОтветитьMultimeter
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