Acoustic Levitation in ULTRA SLOW MOTION - Smarter Every Day 134

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NightHawkInLight : I think I could make an acoustic levitation machine, I really want to try that now! Do you happen to know the stats on the speakers used? Last time I did some acoustic experiments I blew an amp and lit a speaker on fire...

Preet Singh : put a drop of kerosene and carefully light it

Cheeky Bum : I bet in the future there'll be a board game where you and the other players have to take turns putting in the biggest and most water droplets in a machine like this, and whoever pops it loses, like futuristic Jenga I guess.

Alkosept : You should have blown some smoke into the device. I think it would have made the actual sound waves visible.

binky2819 : I wonder if you could suspend drops of mercury in an acoustic levitation machine.

Chris Newman : Should have tried it with a non newtonian fluid.

Maxime FROSSARD : 4:34 the mist is orbiting the sound waves, why?

Andrei Brănescu : You should have blown some smoke into the waves, it would probably have made them visible.

VerumAdPotentia : "Any sufficiently advanced technology is indistinguishable from magic." ~ Arthur C Clarke


mizuhonova : It would be interesting to programmatically nudge the pressure just to the point of popping and immediately reverse it after it tips. Would it split it two? Would a small amount explode but it immediately gets restored to a slightly smaller droplet than before? Would it split the water gently enough to bump the drop onto a different node? So many possibilities!

rookie1024 : Could anybody else hear it (aside from the intermittent glitchy noises)?

mattg00004 : now make one on a large scale, put a person in there, and up the amplitude ;)

XxLoneWolf21 : So I watched this video right after watching your video about printable magnets, and it made me wonder. Surely acoustic levitation could be used to suspend a magnet. Of course you would need a very high amplitude to cause a solid to rupture the way water does. But what happens if you have some magnetic dust, say from crushing a magnet, clumped together, suspend it within the sound waves, and then turn the amps up? How much amperage is required to break the particles apart? How will they behave when broken apart? Will they seek each other out and form smaller clumps that can withstand the amperage or will they just fly apart like the water mostly did?

ChronicPain : That music sounds very similar to RATATAT loud Pipes. 4:19 to 5:28

Z C : The high speed video on the black background would make a nice screen saver.

bullfrogeth : You should also record this with one of those cameras which capture air currents, that would be awesome.

Kinsei : For me the best shot was 4:00. You n kinda see how the sound wave "looks"

Cheesy Izaak : I'm getting SmarterEveryDay. -see what I did there-

Sebastian Ahrens : Those faces at 2:14 are pure gold.

Jenny Tokumei : I can actually hear something very high pitch in some parts of the video... It's not constant. It kind of sounds like an audio glitch, but it's way higher pitch than I'm used to hearing on videos.

Love aesthetic : Hey its acoustic children

Heroix : spray some mist in the acoustic levitation thing to visually see what you're talking about live.

snaprollinpitts : hey Dustin, you are just awesome, and that was a cool demo of acoustic levitation. the wave is similar to constructive and destructive interference.

Grip Limit : I'm not obligated to mention that ford supported me... but, you should check out the new ford focus 😉. lol

Aryamaan Singh : Who else wants Acoustic Levitation Jenga :D

Benjamin Myers : "What could you possibility be doing that's more important than acoustic levitation?!" My kind of logic XD

Ovidiu Pescarus : I cheched out the Psalm 111:2 . Great one! I do appreciate these kind of slight links to amazing texts . Am I the only one who did this?

Tiago Passarela : that map at 2:13 made me laugh for awhile

Nicholas Brule : So if you used thicker liquid; oil or that Oobleck stuff, maybe you could suspend larger drops?

Blue : *let's stinking levitate something dude*

metascrape : Great vid. The corporate sponsorship was handled tastefully too, I wouldn't mind more branded content if the commercial aspect of it was done as unintrusively as this vid. Also for the people shitting on Destin for his religious affiliation, I understand where you're coming from – I'm a former Christian, now atheist – but I think he handles in a tasteful way too. It's not in your face, and it doesn't effect the content of the videos, so leave the man be. With so many in the church being vehemently anti-science, it's refreshing to see someone who's open about their faith, but doesn't see it in conflict with science. Even if you personally believe the two are incompatible (which I do) – it's better that there are Christians in the pro-science camp in the public eye, as it discourages the extremist anti-science tendencies within their community.

215hydra : You guys definitely thought well for understanding how the frequency waves can withhold physical objects. Here is another option for you guys to test. Imagine doing the same process, but without gravity. Technically you don't have the same force holding the water droplets because gravity comes into factor. If zero gravity was tested , I believe more mass would be able to be held. It would probably allow the mass to even itself out (depending how high the frequency waves are set). I couldn't be 100% on my theory, but... It only seems like it would make sense.

Sten Van Gelderen : Would this also work from one side with two speakers playing in oposite intervals and turned at the right angle? Would you be able to create a forcefield with this?

jose Luis Conesa : What would happen if you set an humidifier close to the levitator?. Would it be possible that the mist of the humidifier could let us "see" the acoustic standing wave?. I'll bet i does. Grat channel. Keep the awesome work.

JamesFenczik : making mini galaxies

Colin 'Jolly Chap' Taylor : That will be invaluable next time I want to suspend U2 between some of their PA speakers on stage.

Oscar Whitlock : What I want to know is what would happen if you placed a small piece of paper cut into the shape of a circle (like the little piece of paper that pops out when you use a hole punch) and put it horizontally and vertically? Or does this only work for spherical objects?

Alexandre : So that's how the guy in X-Men flies

Nobody : They never said science could be so beautiful in schools.

RF ID : So ,we can fly with the bigger horn

Diego Fortgens : coulndt you give a warning that headphones might get destroyed? mine did. I was on 34 volume

snaprollinpitts : hey Dustin, it makes a lot of sense when the amplitude is increased the neutral point gets smaller and that's why the drops flatten out and then rupture. it also makes sense that if a droplet is to large it will rupture. larger droplets might be possible if the frequency is lower. also at 4:37 you can see the rings that are most likely the neutral points within the areas of constructive or destructive interference. pretty cool. like you said there is a PHD worth if information within this video!!!

Stupid Engineer : its look like 0 gravity.

SgtMantis : I think something else is happening with the drops. Judging by observations in this video, it looks more like the circumference of the drop is exceeding the size of the node and anti node. Not simply being larger than the surface tension can handle, but then I didn't do any calcs, just observing.

Jap Dcp : i know he isnt real but, is this how banshee from xmen "flies" he uses this concept

S2ymi : Now make it big and Half-Life style and put a human into it.

Brian Hegger : At 6:26 He places his hand under the balls and they fall into his hand, what if the hand was placed upside down above the balls, would they fly up into his hand?

Yukio Gold : So when do we get those gravity beams from portal 2?

Pranav Eswaran : I wonder: If you put your hand on that, would it feel like you are resting your hand on a table or would gravity be too much (along with the force of your hand/arm)?