What's Inside the Worlds' Fastest Heat Conductor?

Checkout Brilliant here: brilliant.org/theactionlab/
In this video I show you the world's fastest "conductive" heat transferring device called a heat pipe. I show you a visual of how fast it can actually conduct heat compared to copper. Then I actually cut it open and show you what's inside and explain how it works!
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[@vecherinka4605]

Others: 1000 degree knife videos Action Lab: Cutting ice with body heat

[@martiddy]

30 degree copper pipe vs icecube

[@vecherinka4605]

@@martiddy 36,5° but yeah ;)

[@biggiganticbones]

@@vecherinka4605 About 32... unless you actually shook his hand [and realized that his hand is about as warm as your armpit]?

[@rsmith155]

The host is a total git as well

[@LunaWuna]

@@vecherinka4605 36.5° cuz hate people using commas as decimal places

[@nicks.12]

Make a long stick out of one, give it to your friend at a bon fire to roast marshmallows with.

[@ohboy1113]

“Hey friend, why’d you give me a copper pipe to roast marshmallows with??”

[@bananananana6205]

nah make a spatula with it, it wont be as obvious

[@Joyful_Jo_]

You evil friccers. I better not see you around doing these things ight? Now hand me that spatula for marshmallows pls.

[@shadowman1466]

Some people just manna watch the world burn

[@oliverdickens3219]

Make pan handle out of the stuff

[@minerly5612]

Think how bad this would be as a frying pan handle...

[@stonks9278]

Oh god

[@namansoood]

It will be equivalent to touching stove flames straight

[@EmazingGuitar]

Do you want you hand to stick to it?

[@DraconicMaker]

Carlos Martinez yes

[@rayankhor8972]

Doctor:So what did the patient get ? Nurse:He got third degree burns in his palm and fingers . I have no idea how he did that ! Patient:Well, I made a frying pan out of a heat pipe and cooked some eggs ...

[@Thor_the_Doge]

*_The fastest heat conductivity in the west_*

[@jskratnyarlathotep8411]

in the wild west

[@anythingrc4715]

I can't like because you at 169 likes XD

[@6-dpegasus425]

@@jskratnyarlathotep8411 :3

[@Вох]

Thor is Doge??

[@hammyboigaming904]

In the East, we use other things

[@363.2McMasters]

This would be perfect for an ice cream spoon and a butter knife!

[@royalgummyworm8131]

Get a patent quick.

[@nighthawk5772]

Your a Guinness

[@arfyness]

Butter knife is solid, I'll take one! But I dunno bout freezing my hand to eat ice cream.

[@JSDBINC]

i was thinking of heat pipes in computers

[@ramen.uchinanchu]

@@arfyness I think he meant the one for serving ice cream

[@Manabender]

4:34 Why no gloves this time? EDIT: Nevermind, the video answered my own question; the heat pipe isn't effective once it's opened up.

[@yuganshdhingra6645]

I had the same question and got my answer too

[@michaeljones5681]

Oh crap yeah imagine that your using one and forget it's cas conductive as it is

[@thowa1]

Came here point out that he missed pointing this out...I guess no need with his crowd.

[@beytu7915]

Thank you! I didn't thought this was the reason!

[@DrorF]

I knew about heat pipes, from knowledge of computer hardware, *_but_* this demonstration was amazing. This video was on another level, and it made the effect very obvious. And the explanation also contributed to my knowledge.

[@hherpdderp]

I just assumed those were always solid copper.

[@priyasaraswat7876]

What is real name of this road

[@noonxrs]

"kilowatts per meterkelvin" me: *visible confusion*

[@scratchpad7954]

kW/m•K

[@noonxrs]

@@scratchpad7954 wow

[@sirmanki]

@@scratchpad7954 i n c r e d i b l e

[@osamabinlackin1556]

@@scratchpad7954 amazing

[@Kai-dr8oe]

Scratch Pad *You sir.. You are a amazing..*

[@irchonite1953]

Oh my goodness, this was such a well made video/demonstration. The way you used the pad that shows "coldness " (thermal energy) to demonstrate how much better the heat stick is than copper really put it into perspective. You're an incredible teacher and person!

[@j0nathansequeira]

What is the pad or sheet used in the video called?

[@dazagrt]

@@j0nathansequeira yes, I wanted to know that too.

[@brianpaquette6055]

Why does this guy sound like he’s asking a question when he speaks.

[@Kuriyu94]

Ending a sentence with a higher pitch makes it sound like a question

[@tommy5589]

He’s American

[@nitesan2814]

He just looks perpetually confused

[@hachikiina]

@yoga pangestu the last thing you want in your burger is someone elses foot fungus

[@daisydaswani689]

He also seems proportioned wrong

[@qbc_03x65]

Diamond is really good at conducting heat as well, I went to a science demonstration where they had a large block of ice and a small blunt knife made of synthetic diamond, it cut through the ice in a very similar way to the rod in this video

[@chiefgully9353]

5 x copper

[@themadman5615]

Diamond is an excellent thermal conductor, I believe it's due to the crystalline structure of the carbon within. Diamond which has a more well structured crystal lattice works even better, but you'll be hard pressed to find such a diamond naturally.

[@salad2357]

thanks for the facts!

[@NwoDispatcher]

So how about graphene?

[@Dhaydon75]

@@NwoDispatcher It is very good but very directional.

[@allennelson1987]

It's the fastest because it's not just conduction, it's evaporation, condensation and convection. In the solid copper rod, the copper never moves. However, in the heat pipe, the water on the wick is a working fluid that moves through the center of the pipe, which is a region of pure water vapor.

[@joshyoung1440]

He literally explains this in the video lmao

[@TJ-zs3gc]

@codewad I did

[@AZ30590]

Alien Nestle

[@JNJNRobin1337]

Statement Remove Keyboard Abilities Due To Worrying About If People """""Asked""""" Or Not

[@ScreamSickel]

Good job you watched the video you’re so smart

[@sriikarkrishna]

Oh now I know that heat pipes inside modern mobile phones really work a great deal.

[@RAHULSHAH-jg1wj]

Yes absolutely

[@rrsharizam]

Indian and phone obsession will never parted

[@sriikarkrishna]

@@rrsharizam What? That's not obsession, that's an example of the heat pipe application we see everyday. Did you comment on this using a nintendo? Everyone uses a mobile phone.

[@NavaneethChowhan]

@@sriikarkrishna you roasted him literally...!. "Using Nintendo?". LMFAO 😂😂😂

[@kcg6016]

@@sriikarkrishna **RR sharizam has left the chat**

[@jasonscalzo9597]

Ooh so that's how vapor chamber cooling works in electronics

[@lorenzocampolucci4464]

Vapor chamber is very similar to an heat pipe, but the heat pipe is a little bit slower in conducting heat

[@clee2423]

nope, vapor chamber is a little bit different from heatpipe

[@threepe0]

@@clee2423 how so?

[@clee2423]

@@threepe0 instead of small surface area at the outside like heatpipe, usually vapor chamber has a wider area so the heat will spread more evenly and faster

[@threepe0]

@@clee2423 I don't think that really qualifies as different; The "how it works" is essentially the same, just a different shape

[@jamesjumpo4324]

This channel has made me really enjoy science. My grades actually went up significantly after watching some of these videos

[@westonding8953]

Great! Make sure you keep up your math skills too!

[@agbluemetal2364]

That's actually great!

[@ErnestoHerreraLegorreta]

Best material video I've seen in a long while. Worth watching every minute of it. Thank you so much!

[@manan-543]

These copper water heat pipes are used in a lot of smartphones(not on iPhones) recently to help in efficient heat dissipation. It's a bit of the different design made according to the smartphone body. In a few teardowns, you can see the water evaporate as the person tears through the pipe. It's really cool. Finally got an idea about how it works😃.

[@willpowerfpv3246]

I've seen this on JerryRigEverything!

[@manan-543]

@@willpowerfpv3246 same here. I'd seen it there for the first time. His channel is amazing.

[@ludwig4029]

Manan S ikr

[@satsumagt5284]

"In a few teardowns" also known as JerryRigEverything ones

[@KClO3]

It’s not water

[@mrsaraf3459]

Action Lab: It's gonna burn me when I cut it, wears gloves . . . Removes the gloves while cutting, second time Also Action Lab

[@DenisLoubet]

He had already cut the end off, and so the heat pump no longer functioned. I totally get your point though! ;-)

[@hanyanglee9018]

Its ok. After the water is gone, it's normal copper rod.

[@mrsaraf3459]

@@DenisLoubet ahh I see 😀 thanks

[@msgeen]

You skipped the part when Action Lab explained the thermal mechanics.😆

[@nickdesert7304]

I read this comment as it was happening lol

[@agnesnyangoma2349]

This guy is a genius. I have been roaming all around you tube the whole day watching car races, bike races, huge trucks blah blah( came here at 10am now it's 11:35pm) East african time (Uganda) skipping his videos and I just clicked on his video as I go to bed ( because I like to concentrate on things that matter before going to sleep) and I felt so at home. He is so calm, and explains everything so well. Am glad to be subscribed to this guy. Honestly am one proud subscriber of The Action Lab. Thanks brother for all the videos. I learn a lot everyday from them and I was a science student in my high school ( BCG/A) Biology, Chemistry, Geography and Agriculture. I dropped out before uni(life is tough down here) but I feel so happy being here. Thanks a bunch .

[@billysbigworld6166]

Wow

[@ghostie8341]

"Pc gamers wants to know your location"

[@dovahseod]

Many laptops use heat pipes to conduct heat from the CPU to the heat sink that the fan blows through.

[@RainyCobra]

But.....they are used is pc's

[@gnmishra95]

This one is used in Mobile Phone

[@OeshenNix]

I need this for my pc that takes 20 minutes to load roblox Edit:My pc overheats while playing roblox

[@GonzoDonzo]

You obviously dont know anything about pc hardware. This has been used in most cpu heatsinks for ages. Vapor chambers work better but its a shape thing. Its just crazy to think that the vapor inside moves faster then the speed of sound

[@MandolinSashaank]

I'm not first I'm not last But when action lab uploads I click fast

[@omhekde9033]

Can we stop using this now 🙅🤷‍♂️

[@SLF6]

Mandolin Sashaank 10 out of 10 will read again

[@ogpogtane7244]

Copied

[@geo3317]

Same difference

[@soumilaryamusicarchive2718]

Dead trick you rula boy

[@ppskg1]

The Action Lab: What is inside of the World's most conducting material? Me: *_Matter_*

[@tarangpatil6952]

OHHHHHH!!!!!

[@kanishkshukla6510]

big brain!

[@vappyenjoyer24]

*_big brain time_*

[@AbhisarRawat]

Yeah this is big brain time

[@psycho8939]

PUJA PRIYADARSHI you play clash royale

[@jimaanders7527]

Best demonstration of a heat pipe I've ever seen. Really Amazing!

[@rollercam351]

Love your ideas and presentation. A vise, small lathe and mill seem to be a good addition to the evolution of your channel. Keep up the good work!

[@kenshiromilesvt.7037]

PC enthusiasts already know about this 😉

[@verylongname8161]

Yup. Linus for life.

[@kenshiromilesvt.7037]

Yea boi

[@psychtank8681]

I think it'll make a great butter knife

[@HoloScope]

@@psychtank8681 oh yeah it sure will

[@Luffy61C4]

Phone users who do teardown like JerryRigEverything know too

[@noahw5887]

Great video! The visual testing was amazing. I always wondered why they just didn't use a solid copper pipe, I always assumed if the copper was hollow to reduce material and save money.

[@earljtharp]

I watched Mr. Wizard growing up in the 60’s. Mr Wizard is no longer around so you are my Mr Wizard now. Very well made demonstrations !

[@seedless-bud]

you know, you help me open my mind up and make it super fun to think about stuff from a scientific standpoint and make me question things not only on a basic level but also on a level to where i look at more acute details even with everyday things/objects. some say you overthink about things, on the contrary i'd say you are not looking at with curiosity.. thanks for the lessons because I want to learn NO MATTER WHAT IT IS.

[@PattyDung]

One drawback: once all the water has moved from the hot side to the cold side, the thermal conductance of the tube reverts to that of a hollow copper tube. Of course if the hot and cold sides are subsequently reversed, the conductance dramatically increases again, but only temporarily. In this sense, the tube doesn't act like a super-good conductor of heat long-term in one direction or the other.

[@vincentrobinette1507]

That's why the wicking process is so critical, to the continuous flow of heat from a source to a sink. That's what returns the condensed liquid back to the source of heat, and is the limiting factor to how fast heat can be transferred. It would be easy, if the heat source is below the heatsink, because gravity would just drip the condensate back to the bottom. Wicking is required, if the heat source is level with, or even above the heatsink. That's why the inside of the tube is rough, so the capillary effect can wick the condensed water back to the heat source, after it has evaporated.

[@PattyDung]

@@vincentrobinette1507 That's a good explanation. From looking at the specs of the best heat pipes (those with a sintered internal wick) the skinny pipes really are about 100x the conductance of solid copper of the same volume, and at low power densities, heat pipes continue to operate at that high efficiency indefinitely. At higher power, the efficiency may be reduced, depending on the tip angle, and at still higher power, the efficiency goes way down, even if horizontal. (Note that in the video, that size of sintered-wick heat pipe would probably rapidly go into inefficient operation if maintained at ΔT= 30°C, the approx difference between the hand and ice, but the warm end probably cooled rapidly to about 4°C. There was probably a rapid melting of the ice initially because the warm end started at hand temperature.)

[@anshum1675]

When I cut ice with a knife: Stop behaving like a kid! When the action lab cuts ice with a metal rod: Whoa! So cool!

[@codyd8291]

Screw those bastards who are making fun of you for cutting ice if you want to do that you can. Dont feel ashamed just cause some haters told you you act like a kid.

[@poboypowder7567]

Archana Motagi why are you cutting ice with a knife

[@me1yz]

JUST BE CAREFUL WHEN YOU CUTTING

[@constantine243]

Happy Cutting Ice, More Power To You Archana

[@tatiyabichhoo1897]

Wait ! I think u r really a kid .. then why r u cutting ice with knife 😒😒

[@iHateHandlesGetRidOfThis]

i first read the title as "fattest heat conductor" and now im concerned for my wellbeing

[@theedislikebutton]

Ur mom

[@iHateHandlesGetRidOfThis]

@@theedislikebutton what about my mom? is she inside the world's fattest heat conductor? i hope she's ok, she should really just use a blanket.

[@h.u.h.]

@@theedislikebutton hAhA yOu'rE sO fUnNy Man, YoU gOt eVeRyOnE lAuGhInG

[@bigsmall246]

Amazing how such a simple design can be so effective. Innovation at its best.

[@dahahaka]

one very big issue here is that you're using a rod vs a pipe, it would be much more interesting to see the heat pipe vs a hollow copper rod, due to the difference in mass and thermal capacity.

[@jstew2938]

dahahaka not really because copper is a better thermal conductor then air so having a hollow copper tube will transfer heat slower than the copper rod

[@dahahaka]

@@jstew2938 you know what's even worse than air at conducting heat? Vacuum. The heat pipe is basically evacuated, your argument makes no sense

[@jstew2938]

dahahaka while you are correct about a vacuum having lower thermal conductivity than copper, the heat pipe has a small amount of water in it which in the lower atmospheric pressure in the pipe boils at a fairly low temperature. The water boiling in the warm part of the pipe turns to vapor and condenses at the cooler end of the pipe, which transfers significantly more heat than air or copper would. It’s actually some what similar to the way an air conditioner or refrigerator works.

[@gavinjenkins899]

It would just be an even bigger difference, don't see what's "much more interesting" about it.

[@alfonsobengoechea7230]

Jonathan Stewart it’s “than” not “then”

[@anthonyvolkman2338]

I learned something new today! Absolutely amazing how those work. Keep up the good work.

[@davidmizak4642]

I want to thank you for the amazing information you provide to your viewers. This is fascinating material. I appreciate all of your efforts. Many thanks!

[@kellyglover5834]

Dude, I think you have the absolute most awesome job ever.

[@TheShadoWringer]

Adding on to this: the "spongy" texture of the inside of the pipe is there to increase the surface area on the inside, thus also greatly increasing the temperature transfer

[@edwardbrant12]

How is the spongy texture created

[@clee2423]

@@edwardbrant12 its actually a copper powder, if you interested at how it made, here's the video kzbin.info/www/bejne/pmiUh2mwgd6Vn8k

[@BilalBarkati]

No. It's because the liquid water gets spread to the entire inner spongy lining. A smooth surface will create a drop of water that will move here and there due to gravity and won't boil on the application of heat on the other side so, it won't work.

[@tanmaysinghal3387]

Bro it's never temperature transfer.... It's heat transfer.. There is a difference

[@vegonomia-nosprotegendodoc9011]

Also the spongy part act as a capillar bringing the condensed water from the cold side back to the hot side, where it evaporates and goes as vapor through the middle of the pipe. Creating a closed cycle. Just my guess, I am actually an idiot.

[@ThisGalaxyCat]

Action Lab:I have 2 rods here one of this is a copper rod... My eyes: wait there is 2 copper rods

[@jskratnyarlathotep8411]

The one is a copper rod. The other is a copper rod.

[@basedmale4719]

my eyes ROD IS ROD

[@c3lest322]

Hmm, yes. The rod is made out of rod

[@_c_e_]

I've repaired hundreds of laptops and always wondered why many looked like hollow tubes crimped at the ends. I suspected increased surface area but after your fantastic video it all makes sense :) WD!

[@bubaks2]

dude thanks for this. i learned something new about material science and heat conductivity

[@VinceTibo]

Alright this is absolutely fascinating. I was expecting some kind of alien material with insane properties. I'm sharing this with all my nerdiest friends

[@FineScienceRoy]

These videos are sooo awesome.....I wish I had a channel like yours ! Thanks for the content

[@Bob3D2000]

Interesting. I always wondered what was special about the copper heat pipes in CPU/GPU coolers.

[@Tenchi707]

Ikr I was like why they are so much better than stock cooler that blow air directly on to the cpu, you feel me?

[@DudeUnperfect21]

I was remembering a GPU with weird copper pipes

[@hashimnameer1308]

when i saw how it works the first two minutes i thought of it and before you reveal it i knew how it was working and it’s inside as well, so happy i figured it out before you explain it haha :D

[@taufikcnugroho]

You should do comparison of that heatpipe between the opened pipe and the unopened one. And see how much difference it is.

[@clee2423]

opened pipe gonna react just like a normal cooper pipe, there's no difference between opened pipe and normal copper rod, the water is the magic in the heatpipe

[@utiantew]

Wait, what about the heat pipe that has a radiator liquid and a wick inside. I swear I've heard that kind of thing.

[@tuunaes]

@@utiantew Then someone was feeding you BS. High heat conductance of heat pipes is based of evaporation absorpting lots of thermal energy. With movement of gas then transferring that energy fast to cold end, where condensation releases that thermal energy.

[@herseem]

@@tuunaes What he's referring to is a wick used to soak the condensed water back to the heat source more quickly than the copper powder that is sintered to the inside of the pipe. I have wondered if a woven glass fibre wick might make it more efficient because the relatively straight-ish glass fibre bundles would wick water much faster than the tortured path of water being soaked along the copper powder. If you see water soaking up a bundle of glass fibres it's extremely quick

[@e.s.6275]

@@clee2423 there IS a difference between a copper rod and an opened copper pipe. It is in the copper cross-section.

[@deschia_]

All those years of computer building and overclocking and I be like "what isn't that just a regular heatpipe?" 🤣🤣

[@user-dp8nz7qn8e]

excellent demonstration!

[@SaschaUncia]

Finally they are explained! I was looking for this!😸

[@chaosnipples]

I do HVAC for a living so when I saw that copper tube was pinched on one end I knew right away this was a phase change conductor

[@FiveSixEP]

Where can I get these rods

[@KILLTHEREDDITOR]

I thought the "bad" heatpipe he was holding was the regular sintered copper tube and the "better" one had some rare and expensive material inside it. If you already know about these heat pipes then this video is disappointing.

[@chaosnipples]

@@KILLTHEREDDITOR Phase change conductors are common in computer heatsinks

[@chiefgully9353]

@@KILLTHEREDDITOR as well as HVAC. This is essentially how ac works. Though it uses a chemical

[@joelstock94]

This is so cool! :D

[@ersetzbar.]

Thanks alot for this informational video. I always found it intuitively unlogical that those high mass cooling surfaces are connected by thin copper tubes. I thought without deeper knowledge that copper shouldnt be able to transfer enough heat quick enough with those low radii. I didnt knew those things existed. Such a genius heatpump. Im amazed.

[@practicaltactical1336]

Great video and info! Thanks

[@juhanasiren6824]

Pro tip: you may want to get a small vise, the kind that clamps on the edge of your table, or a Panavise kit if you're being fancy. It's much easier and safer to cut with a Dremel when the workpiece is held securely. (You do wear eye protection when using a cutting disk, right?) edit: I just noticed this video is almost two years old, but never mind...

[@marsbase3729]

Good advice, I totally agree

[@eddyflo2978]

Who cares, if the content creator chooses to be unsafe its of no concern to us VIEWING through a device were nothing can happen to us! And if there is anyone who actually is dumb enough not to follow safety precautions their better off not in the gene pool.

[@MrOvergryph]

Clever design. I'd love to see its replacement one day. Could you imagine what an upgraded version would even look like?

[@As_Asa_PhD]

Vapor chamber.

[@blanksymortimer4088]

I imagine it would be made of synthetic diamond

[@JohnSmith-ys4nl]

They are using nanofluids to replace pure water. Studies have shown big increases of efficiency and conductivity. There's also new materials they are using for the "wick" which also does the same thing. I am not sure if these techniques are being used on a wide scale yet or not, but I imagine it will catch on.

[@poordelir]

That is exactly what I was looking for. Thanks.

[@prashanthb6521]

Awesome demo.

[@ven5707]

Good job action lab. You're finally back in the algorithm.

[@bulasev]

So.. basically as I understand... It's magic. ✨

[@aayushchalekar8260]

Oh, check 6:01 ur correct

[@fiegenfiegen]

Awfully interesting! The differences in speed of heat transfer in different materials always amazes me.

[@ezinventor3274]

You have cool experiments and well explained

[@noaroos6115]

Something interesting related to this video is superfluid helium (I believe helium IV). It's a form of liquid helium that transfers heat almost instantly, it's very interesting. So technically, superfluid helium IV is the stuff that transfers heat fastest

[@456MrPeople]

Yeah the problem is that any heat it does transfer also heats up the liquid causing it vaporize due to the low boiling point.

[@igxniisan6996]

From where can I buy heat pipe?

[@chrisfuller1268]

Pyro carbon conducts heat much better than a copper heat pipe

[@anshum1675]

When I clicked on the video: 1.8K views. After watching the video: 3.6K views. Damn, you get views fast!

[@priyar5682]

Watch PL science.... Basic science in funny way. #prayforvikram

[@ObsidianParis]

Yeah, this new material also conducts views incredibly fast… :)

[@seanmckenna6499]

Brilliant video! Very well explained, thank you for sharing

[@lucaconstanti]

Amazing! Keep up the good work

[@DerangedMallard]

2:59 This is how we're going to explore under the ices of Antarctica

[@vadernation1233]

Antarctica is a continent it’s made of rock not ice.

[@DerangedMallard]

Well is there not a lot of ice in Antarctica?

[@Jamesardo136]

Someone actually used a pipe made of this stuff to cut a hole in the ice to study it. It made it so it wouldn't melt the ice and ruin the experiment Edit: I found the vid m.kzbin.info/www/bejne/moLaZapvjMyLmbM

[@huntergarrison1335]

the fastest heat conductor is my back when im sleeping

[@Lunadoeslotsofstuff]

Lol

[@Reptiliomorph]

That was really cool, thank you.

[@MadDragon75]

This the second video out of two videos of yours back to I back combined with the idea I came up with for retractable 🔭 telescopic blades & aircraft carrier cable to be used on wind farms inspired by watching videos of them structurally failing and decided to donate some time to help these engineers tackle this issue for safety and longevity. You have a wonderful scientific mind that can be a valuable asset with their production of a solution. Good day.

[@MadDragon75]

Here's the first video that may solve the problem for *the* *runaway* issue with the magnetics locking up and for not locking. kzbin.info/www/bejne/jGapqnmsnN2Inqc So that video solves that problem because they say they don't have a clutch so now I'm thinking engineering up a magnetic torque converter.. similar to what we use in automotive rather than a fan clutch.

[@FishHeadsIV]

I wonder if you could incorporate these to make a more efficient Stirling engine or peltier cooling system. I'd love to explore some new experiments with this.

[@priyanshuupadhyaya612]

Did you get to know how to use these pipes for peltier cooling system?

[@krutarthkamath3872]

Can you please tell us what paper did you use in the beginning to check the heat transfer?

[@VoltisArt]

Search for "thermochromic" or "thermochromism." There's all kinds of products with this feature. Video featured a plastic thermochromic film. (Thermo = heat, chromism = changing color.) Thermometer strips for foreheads or aquariums use the same technology.

[@Aprendeconchito]

Awesome as ever thanks for Share your knowledge !

[@irvintang2751]

Learned something, thumbs up.

[@Engineer9736]

0:03 A heat pipe is not material, it’s a mechanism.

[@mohitsilori6064]

What was that paper u used to show heat transfer 1:34

[@mr.graffity8420]

i done some search and i find this is a liquid crystal heat-sensitive paper

[@agentkgxiyxuy]

@@mr.graffity8420 Thanks......

[@mr.graffity8420]

@@agentkgxiyxuy its take me like 5-10 min

[@vicnie1]

I think it's thermochromic paper

[@mr.graffity8420]

@@vicnie1 you will find more thing with liquid crystal heat-sensitive paper

[@martin09091989]

I knew that heat pipes are a better heat conductor than even the best solid conductors, but i did not expected it being that rapid!!!! 😮 Thx for the demonstration! Next time i have to cool somthing, i will take heat pipes more likely in consideration!

[@allezvenga7617]

Thanks for your sharing

[@Clatter-md8gx]

Imagine having a room made out of that material hella freaky

[@Shitpost162]

What’s inside be like “HEY, YOU STOLE OUR IDEA GRRRRR!” xD

[@IntermountainGoldRefiners]

I really like how this visual played out.

[@btCharlie_]

That's absolute genius. Using pressure differential to transfer *heat.* Simply genius

[@FacterinoCommenterino]

Today's fact: Our planet is mostly made up of iron, carbon, and silicon, with a little bit of magnesium here and there.

[@MandolinSashaank]

Thanks dude. You're amazing

[@rakibrajin5092]

And nickel

[@yinyang1217]

U forgot dirt and water

[@austinwithaG]

@@yinyang1217 You're a funny guy.

[@anshum1675]

Today's fact: Facterino Commenterino has started annoying people (especially me).

[@joonas1244]

1:06 i could play with that stuff alot

[@janibashamolla]

Thanks a lot sir for your kind information I impressed with your expirment...

[@tromiverto]

Really COOL 😎. good to use in computers and refrigerators

[@MisterRorschach90]

looks like someone is making a custom heatsink for something and decided to do a video on the copper heat pipes.

[@kimkaphwan1986]

0:53 what is this sheet? Where I can buy one?

[@mr.graffity8420]

i done some search and i found this is a liquid crystal heat-sensitive paper

[@Jamesardo136]

There's a really cool video that shows some experiments with it m.kzbin.info/www/bejne/moLaZapvjMyLmbM

[@J-Physik]

@@Jamesardo136 u serious?

[@chancebutler6472]

when i watch this, i feel it in my brain/head..?? if that makes any sense hahaha. so mesmerizing! i didnt really understand thermal conductivity very well and still dont maybe but i understand it a lot more now! thank you

[@timqbic2238]

Thanks for the video, amazing engineering :)

[@RahulVanjeri]

The Poco F1 uses this as their "liquid cooling" Jerry rig tore open one of those

[@7XHARDER]

Lol I just got a pocophone last month, didn't realize it was popular enough for people to comment about it :D

[@murilopirrialves343]

Where can we find this special rod and the thermal paper ?

[@crazynfc2667]

Thermochromic color changing film/ paint

[@murilopirrialves343]

Sergei Lewandowski thank you!

[@jskratnyarlathotep8411]

@Lalrivunga Hnamte using what materials? >_>

[@jskratnyarlathotep8411]

@Lalrivunga Hnamte now i urge to clarify, are we talking about that magic rod, or mystic thermal paper?

[@jskratnyarlathotep8411]

@Lalrivunga Hnamte it is not about the video, the context is in comments. Root one asked about both, rod and paper, then someone mentioned paper could be bought, then you mentioned it can be made at home, and that is the point where i was interested in: how could you make thermopaper at home. and no, it is not that easy to create such a surface on the inside of the copper tubing. Sealing the vacuum with a little water inside it would be easier, but not much, as we need very specific pressure of water vapour in the tube after sealing. But if it was about thermal paper, i thought, you might just know some chemical available in food or chem store

[@ronaldpauly9688]

My engineering project was the experimental performance analysis of heat pipe. This brings back memories

[@dexobj]

What a beultiful demonstration

[@TussalDragon344]

Next video: “What’s Inside the World’s Fastest Electric Conductor?”

[@willpowerfpv3246]

Ive seen this tech inside of gaming phones that Zach rips apart on JerryRigEverything..

[@Hiroyuki_T]

same

[@rishirajsaikia1323]

Pocofone f1 cooling system is not a hoax

[@AbhisarRawat]

Especially razer phone

[@HoloScope]

@@rishirajsaikia1323 and no one said it was

[@robbiejames1540]

Erm... wtf is a gaming phone? Just use a computer like everyone else!

[@Autotrope]

The best thing about your videos is the enthusiasm

[@Autotrope]

Also, an easier to understand explanation of heat pipes than Gamers Nexus. Well done!

[@judyreyjumamoy]

i always wondered how heatpipes work but i didnot bother to search for it but luckily im your subscriber so i wont have to

[@minepaperstudio5683]

4:50 the rod end is glowing!?

[@gustavgnoettgen]

What's inside? Thin, clammy air.

[@aquariz]

Wow big thank ! i actually know it today

[@hattonz5275]

Where can I get the temperature viewing film? Thank you for the great videos, definitely one of my favourite channels. Keep up the good work. Dont worry, the comments had already answered the same question, hahaha thanks anyway.