Acoustic Cooling & How To Manipulate Heat With Sound (Thermoacoustics Part 2)

Man, incredible work. You saved me a massive headache in trying to explain this for my James Webb telescope video. Going to reference you in my video as thanks

Yes, please cover/explore traveling wave engines.

This video is 2 years old and one of the best educational videos of thermoacoustics. Please keep going and create a traveling sound wave demonstration as well, I still do not fully understand how they work.

You are very good at relaying info. You simply say what is true. And you disambiguate phrases/words/concepts that people easily confuse. I would definitely love to see more acoustics stuff!

oh dang. this is advanced. youre even breaking out the mood ring technology

Uhh yeah? Dude turn this into a whole series, please! This is amazing!

I hope you read new comments on older videos still: If you combine this video with your more recent video about self-cooling paint, and then build a system made with wind pipes, you could make a fully passive air-conditioner. The wind pipes generate the standing wave, the heat dissipating paint will radiate the heat away (either by feeding heatpipes to a cooling panel, or by painting directly onto the tube in the hot areas. The heat should radiate outward because of how your paint is made (the painted surface sticks to the paint layer slickly, allowing conductive transfer into the paint, while it also prevents the paint from radiating it back into the tube, while the outside will have a greater contact surface with air, allowing for convective cooling on top of radiation as soon as the temperature goes above ambient. Now if the wind is created by passive ventilation techniques, it would let the hot air create the resonance tone on the way out, while the cooled air pushes down and into the room, creating a fully passive clean cooled airflow even when there is no wind outside.

F'mindblowing.. Searched for part 3 many times now.. I really wish to know more about this topic, I am going to recycle a subwoofer..

Other science channels cover a lot of interesting stuff too but this channel's the one and only channel that I can rely on to find out something new every once in a while, then the other channels start covering the same stuff because of it.

You should try to get a company to send/sponsor you with a thermal camera, you could use one so much!

Very much hope there will be a part 3! Also acoustic heat pumps seem to be a very interesting technology, would love to see you discuss the basics of those as well!

You got a gift for teaching, one of the reasons I love your videos. Simple is better when learning foundational concepts. DIY is almost intuitively included with your demos. Thanks!

The way those layers were kept separate: genius move. Really good idea.

Dear Ben, I'm glad to see the Part 2 of your thermoacoustic video series! You have done a very good job and you are presenting the experiments nicely and clearly. I hope lot of people will start to interest about thermoacoustics because it is a really interesting topic of the heat-engines. It was a good collaboration I'm waiting for your next video! BLADE

I've been in HVAC/r for over 20 and all I'm going to say is you have my attention! This is some pretty interesting material!

I must say, this is absolutely the highest education-grade quality of YouTube there is. You are a gold standard. Keep it up!

I'd love to see this developed further, especially chaining the stacks together to get more extreme temperatures and building it into a device that can actually do something even if it might not be the most efficient thing.

This is a really fascinating subject. Great video!

As a professional brass musician and avid science enthusiast, this video makes me incredibly happy. Your explanation of fundamental resonance and the harmonic series is very well researched and explained.

More of this please sir! Both absolutely fascinating and extremely informative. This is the type of stuff that could inspire aspirations for further exploration into the sciences amongst young minds both now and in the future.