You Will Get This Wrong Every Time-Balloons With a Memory (Elastic Hysteresis)!

Ever wonder what the pressure is inside of a balloon as you blow it up? In this video I show you how to always win a bet using the physics of balloons. I measure the pressure inside of a balloon while I am inflating it and deflating it. The results are surprising and will help you understand what hysteresis actually is.
You can still enter the giveaway and take my fun quiz here!
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WARNING:
This video is for entertainment purposes only. If you use the information from this video for your own projects then you assume complete responsibility for the results.
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[@TheActionLab]

I should also mention that the "memory" I am talking about here is not the permanent deformation that you get from stretching out a balloon for the first time. The type I am showing is totally repeatable every time you blow up a balloon. Notice how the latex band went back to its original position so it was not permanently deformed.

[@hajmola7605]

The Action Lab i subscribed ❤

[@AmitKumar-mt4gn]

The Action Lab I have a question I means that pressure inside a balloon is even greater than the atmospheric pressure as air expelles out in the atmosphere

[@TheActionLab]

Amit Kumar, yes pressure in the balloon is greater than the atmospheric pressure

[@AmitKumar-mt4gn]

The Action Lab wow thanks

[@christophersmith8014]

Elastic structures like rubber bands and balloons are internally compressed when you stretch them out. So Even though the balloon with air in it has more total volume, the physical bounds of the rubber itself decrease. So, the thin shell of rubber has less overall volume than it's previously uninflated state. It's unintuitive to think about compression when you are stretching something but that's what happens with elastic. The spike in pressure when blowing up a balloon is probably the quantum amount of force required to overcome the rubber's inertia and is likely equal to the maximum amount of force that the rubber can exert when fully internally compressed. As the balloon stretches the surface area increases so the psi goes down, but the total pressure required to resist the elastic potential (the internal inertia of the rubber) should remain nearly the same since the total volume of rubber is the same and it's internal matrix has a fixed action potential (at least relative to the integrity of the rubber itself). When you release the air from the balloon the air pressure just decreases because it doesn't have the same quantum of inertia to overcome. When you inflate the balloon past it's maximum potential to store pressure you begin to break internal bonds in the rubber itself and it loses some of it's overall capacity to store energy in it's internal matrix (you get a stretched out and potentially busted balloon). Subsequent inflations are easier because the overall capacity to store energy is decreased and the quantum of inertia is lowered, thereby less pressure is required (or should be you can test it out). Also, when you inflate a balloon or stretch a rubber band it heats up (since it's being internally compressed and it's entropy decreases as the molecules line up) and when you release the tension it cools down (since it's being expanded). Just some cool things to think about.

[@CFSworks]

6:32 "And then here's what happens if you keep blowing up the balloon" I was half-expecting you'd literally keep going until it popped in your face.

[@jcsjcs2]

That would have been the right thing to do. I'm utterly disappointed.

[@jacuhb8445]

I was so nervous

[@improvingguitarist1595]

Same lmao

[@ytell2896]

The problem is they didn’t give me my money.

[@TheActionLab]

Send someone to break their thumbs

[@sophiegarrett2097]

The Action Lab😂😂😂

[@sengeete398]

Call Nino.... He would clean him up

[@xd_sanad9161]

The Action Lab i bet u he already broke their ears, arms, and legs yes their legs

[@user-zu1ix3yq2w]

Rekt

[@Khantia]

"Okay, what's your guess?" "I bet it will get smaller" "Okay, give me a min to blow more air into it and then release it, so we can see what will happen" "Sure thing, nothing suspicious about that"

[@Templarfreak]

you might be able to get away with blowing it up less then that and then "accidentally" releasing some air, or maybe subtly releasing some air without anyone noticing, while you put it on the tube.

[@beko466]

What if you ask the question first and then setup the equipments

[@joshspringsteen4367]

Just be like oh I forgot this ones not supposed to be the same size

[@CouncilOfTheLostGoats]

Accidentally release all the air, blow it up too much and then they'll be like "hey no, it was smaller before", then release just some of the air.

[@abhirammadhu2973]

LMAO

[@scanvil3766]

i've discovered something incredible. 6:45 as the volume of the baloon increases, the volume of my headphones decreases

[@rashim]

Exactly😆

[@djangoray2665]

Robin: "Why does it work?" Batman: "Because science!"

[@Rain_8541]

Robin: *mind blown*

[@pind234]

Bat Man your profile picture goes so well with it 😂

[@sanskartewatia4320]

"because I'm rich"

[@greenjoe4202]

Sanskar Teotia more money than Donald trump.

[@bmax5928]

"Because im batman"

[@egafx]

Now I'm thinking if there's any difference between pumping car tires right away to the required pressure vs. pumping above the required pressure first, then release some air to meet the required pressure.

[@schwarzerritter5724]

Egarolla If you inflate tires so much they visibly change shape, then yes.

[@iddomargalit-friedman3897]

Well according to this, they will be slightly larger in size if you inflate then deflate (As they'll need more air to keep the same pressure)

[@ionic_iris]

Tires are made from an extremely different material, they should NOT behave this way! Both are referred to as "rubber", but a tire is made from a fully cross-linked polymer that will have far more stable and predictable properties under various stress conditions.

[@richardbadish6990]

@@ionic_iris I agree. Not to mention with the tires being belted it' takes a good amount of pressure to increase the size once its reached the recommended psi. As opposed to when they are deflated, you can start to see a size increase fairly quickly because you are not fighting the actual material at that point.

[@fly7188]

Tires have significantly less elasticity per surface area than the balloon rubber so the effect is likely greatly diminished.

[@Mutantcy1992]

I think it would be informative to check the pressure again with the probe further into the balloon and with the flow rate decreased. That fast flow of air out with the probe near the neck of the balloon is going to result in a lower pressure because fluid flow causes decreased pressure. It seemed like you were attributing that pressure drop solely to the elastic of the balloon. Perhaps you could make a disk with two holes, one for the pressure probe, and one to let air out. If the probe is deep in the balloon and you get nice laminar flow when you release the air, the probe should be mostly unaffected by the effect of flowing fluid showing a decreased pressure, as in the video that probe was definitely seeing a lot of turbulent flow.

[@JohnCena8351]

Man, i learn so much from this channel! Thank you!

[@theCidisIn]

John Cena nice meme

[@djangoray2665]

Are you the real John Cena.

[@kennibone6862]

Clorox Bleach that’s the whole point🤦🏾‍♂️ John Cena says you can’t see me

[@OscarLT321]

Kennibone Pretty sure clorox is trolling

[@erkkalehtonen5107]

John Cena so r u the creator of rdkube

[@do2n.g.m479]

This really "blows" me away...

[@Busy_Paws]

DO2 N.G.M The only thing that blows is that joke.

[@do2n.g.m479]

Macy Lane What even blows better is your mom

[@RavenWillliams]

I'm crying 😂

[@spacemanrick2014]

Lets not BLOW things out of proportion.

[@musicalgenius573]

Get ready to get the wind knocked outta ya... don’t be surprised if you explode. Heh.

[@paulsbuchman]

@The Action Lab: I can help describe what you are seeing with the stress/strain curve a little bit better - including the why the release at the end acts like it does (I have a Masters in Mechanical Engineering). The first part of the curve (before the first peak) is the “elastic section.” While you are blowing up the balloon here, the balloon’s deformation is completely elastic and should always return to its original state. Interestingly enough, you can actually predict the exact slope of this line with some simple material properties. If you let the air out before reaching the peak, it will follow this exact line back. It will continue to expand elastically until it reaches the first peak - or “Yield Stress” at which the balloon’s plastic will yield, and start to permanently deform. At this point, you have started to permanently alter the bonds of the rubber, and so the rubber becomes weaker, allowing the balloon to continue to expand, even at a lower pressure. As you continue to inflate, the pressure required will start to rise. You are correct in saying that the balloon will not expand much more at this point. At a certain point, it would, of course, go past its limit and pop. Now, for when you let the air out and release the pressure: Despite all of the permanent (plastic) deformation, the material is still elastic, and still has similar elastic properties, despite the massive deformation. Therefore when you let the air out, it will still being to return to its original shape BUT ONLY the amount within its elastic region. Any deformation that occurred after the point that the material yielded (changing from elastic deformation to plastic deformation) is permanent. The curve will then follow roughly the same slope as the original line back, because it is returning from its elastic deformation. Therefore, it will form a line parallel-ish (theory vs actuality) to the elastic region, but start from where the permanent/plastic deformation ended. Great video! This is really cool stuff!

[@safihalim3747]

Nice explanation! I have a question, according to the stress strain diagram, 80% of the elongation of the balloon was in plastic region (and 20% in elastic). But when we deflate it, the size of the balloon decreases more than 20% (as if it's elastic region was more than 20%) Why is this so?

[@shi_mo_neta]

Sorry but rubbers don't behave that way. What you've described is the typical behavior of metals. Kindly lookup stress strain diagrams for latex rubbers and you'll realize there's no peak there. It's good to know a theory but it is just as important to know what it describes and its limitations. (I have a master's in materials science and am doing my PhD, these degrees mean nothing if the person has poor understanding of the fundamentals)

[@henrikohm]

So to recap. Balloon 🎈 is difficult to blow up in the beginning. Everybody should know that. This increases pressure until the balloon 🎈 suddenly start to expand making the pressure go down. When releasing pressure same happens just reverse. The interesting 🤔 part is that if the two balloons 🎈 both are beyond this point then the pressure is the same inside and nothing happens. If one balloon 🎈 is below its “I don’t a want to be inflated point” then it will release its air into the other. Right?

[@guest1059]

*NOICE*

[@henrikohm]

Nigel 100, Nice or Noise?

[@guest1059]

@@henrikohm **Snap** NOICE

[@figgiesmalls1760]

Action Lab taught me the art of the Hustle 💰💰

[@theCidisIn]

Figgie Smalls haha dank profile

[@figgiesmalls1760]

cody hedges ty m8

[@ReickyTcharles]

Hey everybody have this same picture you do , where is this from?

[@oneshortgamer2540]

You must be fun at parties.

[@TheActionLab]

The party don’t start till I walk in...

[@greenjoe4202]

The Action Lab lol

[@MammaOVlogs]

lol so true!

[@frenchlasagna8138]

Santiago Ferrari I can shoot a milk dud from my ass 15 feet across a room

[@InsideOfMyOwnMind]

Kevin Durant 2017 NBA Finals MVP Um...buddy, it wasn't a milk dud. 😩

[@pauls.5815]

Guess we need to change the saying, "Is the balloon half full or half empty."

[@nitd955]

😂😂😂😂

[@fridapazsourfeat5472]

A youtuber with brain, thank God hahaha ❤ I watch every video, love you

[@AZAce1064]

Check out smarter every day channel as well, you’ll like it👍

[@sparsharora3460]

Please put bubble wrap in vacuume chamber

[@Godzilla-vw4vs]

Sparsh Arora smart thinking

[@xistencestudios8904]

Sparsh Arora it will just explode and not even make the satisfying pops (sound)

[@joeb4503]

Sparsh Arora it will just pop and that will be the end

[@tondesign3635]

Sparsh Arora nice idea... like his comment so he can see it

[@frenchlasagna8138]

Sparsh Arora no he should put a vacuum inside a vacuum chamber that's inside a vacuum chamber.

[@bunnyfiji]

this nerd deserves more subscribers, honestly.

[@MammaOVlogs]

yep love this nerd

[@wishfx3712]

He's not a nerd just scientifically smarter than you

[@nehankaranch2149]

Now he has 2 mil subs

[@moonandtanu7591]

Now 3.8m

[@maxwilliamson3701]

4.51m

[@ashishlukka]

Everything is great except when you say pressure in pounds per square inches 🙂

[@maxp3141]

Awesome video! But also something you kind of know in the back of your head if you have blown up balloons: it’s hard to get started, but once you get past a certain point it gets easier. Would love to see a follow up video from some polymer scientist explaining what happens on a molecular level.

[@richbooth8948]

Good job. The correct pronunciation is: hista-reesis.

[@DANGJOS]

I must say, I would have never guessed this! Good thing I didn't do one of my before video predictions lol. Just a nice reminder that you need to actually do the experiment before saying what will happen. I would have told someone that the pressure will always increase due to the increased tensional forces. Great video!

[@TheActionLab]

Yeah this one was really interesting for me!

[@malijames12]

Well said! And I would've agreed with you. Now, I'm thinking it may have to do with the geometry of 3d shapes, seeing as volumes increases at a greater rate than surface area, the complexity of elastic materials' molecular structures, and other outside factors like heat. Really shows how these materials have more dynamic properties than I previously thought. Science!

[@joetheg1293]

I said it will maintain homeostasis.

[@theunknownbeing7]

I guessed it correctly because I always know blowing up a balloon is so damn hard initially and then gets so much easier. But I don't get the $20 so it was still pointless :(

[@TheNetsrac]

This was a lot more interesting than I thought it would be, yay. Congratulations on hitting 500K subscribers. It is so well deserved. Happy New Year to you and yours and thank you so much for all the videos you brought us in 2017. Best wishes for 2018

[@aquietdarkness]

The hint was actually helpful! I guessed it would decrease in size because that seemed counterintuitive

[@apexiv6919]

Gave me serious anxiety when you kept blowing that balloon up… ☹️

[@ryantong5647]

Could have said every bit of this with.. "it stretches the rubber"

[@trident5523]

I love your channel so much. Very educational and entertaining. Hard combo to do. Props man. Keep the content flowing

[@synlong523]

You’re always patient with explaining your works. Sometimes your explanations take long because just like this video, what seems simple to people actually involves some beautiful traits of nature like Hysteria. But you are always able to explain it to a non-scientist people like us because you don’t skip details. You’re the science teacher I needed in high school. I like your channel.

[@justdilka]

3:40 Damn, Thought you were going to do some Bottle Flipping trick shots!

[@ProPlayer-wq3nu]

You're wrong I got it right in the second time I saw it!

[@TheActionLab]

There you are, people have been asking where you were

[@ProPlayer-wq3nu]

The Action Lab Well now they know!

[@trychan959]

Pro Player 1⃣ missed you

[@ProPlayer-wq3nu]

TryChan Yo you even changed your pfp How ya doing

[@trychan959]

Pro Player 1⃣ good ... i get trought puberty thats why ;)

[@stevenrogers2448]

Very Interesting! I didn't realize how much hysteresis rubber has! I'd like to see how the pressure changes the second, third, and fourth time you blow up the same balloon!

[@rikku6065]

7:45 *elastomer. Rigid bodies are more elastic, for example steel is more elastic than rubber!! Elastomers are material which can be stretched a lot from a given force.

[@liveonthesun3368]

7:05 One of the scariest things in the first world. 😁

[@yasminfarzan6371]

Thanks for your channel man, you’re my favorite youtuber! All your videos are brilliant and interesting!!!

[@jonathanwalther]

Thanks a lot!! This was really helpful and brought some new insights. Until now I thought the pressure in the small ballon is always higher than in the big one. It's much more complex thou.

[@thezeias91]

Great! It solidified really well my knowledge about hysteresis

[@splgroupofcompanys7524]

Is it just me I got this in recommendations after 3 years

[@neerajmehta3461]

Me also bro😅

[@lifeofphyraprun7601]

Appears that the latex string didn't remember where it was earlier!😂😂🤣🤣

[@craigcampbell5590]

Your channel rocks man! Physics is something I struggle with because it can be so counter intuitive (as with this example). But I never cease to find it fasinating. Thanks for sharing your knowledge dude!

[@anandarunakumar6819]

Awesome. May be we should use these models to explain the galactic rotation anomaly.

[@TheodorBourelius]

3:23 oh I 'member edit: anyone got the reference?

[@itiomaradriaanse1084]

theodor bourelius member berries

[@CometsPath]

I member

[@Joe-mb1uo]

MEMBER BERRIES!!!!!

[@zustiizth]

I member

[@eDhUAN]

This particular physics also saved the lives of many babies apart from winning bets apparently. Vid by MinuteEarth kzbin.info/www/bejne/eXu0nZqooadlb68

[@TheActionLab]

That is awesome! Thanks for sharing!

[@whaszup1]

Wow! I am watching this video about one year later and you now have 1.5M subscribers. You gained 1M subscribers in one year, that's awesome! Keep up the good videos.

[@eugenesesmaiii3278]

This was amazing! When I tried to work it out before getting the answer, the piece missing was the elastic hysteresis. So cool!

[@gurpreetgedu]

5:20 dont waste time

[@brickbarnf.c.8805]

Very good video, lots of interesting information that I could do better off with knowing

[@Max-zv1bu]

Amazing. Never thought of such phenomenon.

[@darshandani1]

That was cool. This also helps in understanding the current - voltage hysteresis in a way. Both are similar to some extent.

[@jackdvorak6239]

Our physics teacher did this on the first day... everyone thought wrong! It is because the elasticity in the green one is more forceful, and closer to being normal, so it pushes the air to the other one, which is already blown up a lot, so no resistance holding it back from going in there

[@fahmidazim3731]

Had I the memory of a baloon........

[@ranjanarathore0784]

From this channel i learned a lots of things ,please make more videos like this

[@PhoenixA380]

The age old question - "How to scam people with balloons?", finally got its answer.

[@celesefernal2490]

7:02 It chapter 2 Flashbacks

[@user-om9iz1bp3f]

I have a different perspective as why this happens. It's simple when initially you blow up the balloon the rubber is not yet stretched so it requires more force/pressure to blow up the balloon. As the balloon fills with air the rubber stretches and becomes thinner so the pressure falls. Than it reaches its max stretch and the pressure strats to build up again. So in my opinion if you choose a balloon from the first state (initial infation) or last state (max stretch) and connect it with a balloon from state two (rubber is thin but not at the limit) you will always get the same results I don't think this happens because of hysteresis. Let's have a discussion here 😊

[@MasterRoshi69]

This was actually my same thought. You'd have to experiment and see if you can go back and forth on the memory. He never showed this, only the stretching effect. So it could be just stretching, and then it's just stretched, end of story.

[@hudsoncraven1775]

Wow! Never knew balloons were so smart! 😂

[@OmegaZZ111]

This is a very good representation of how a hysteresis acts in real life. You have a talent in visualizing things with easy experiments everyone can understand.

[@hornetluca]

Can I still bet on the green baloon and win, with a blue and red one? 🤔

[@scr4932]

Nah fam just say the green one will decrease in size and pop it

[@greendayatthedisturbed3099]

hornetluca 🤦‍♀️ yeah, colours don't mean shit

[@craner6871]

@@greendayatthedisturbed3099 woooosh

[@tabibhasan5523]

Nice

[@Jagooon]

So elegant. Thank you. 😃

[@alexanderdeeds4100]

Totally makes sense, balloons are hard to blow up at first but as soon as it starts to stretch, it gets easy. Not actually that surprising but very interesting!

[@Surya045_]

Same question was asked in IIIT UGEE2020 one of famous institute in INDIA

[@xxakhileshxx]

I got $25 ...😂😂😂

[@tchgs11zdok15]

Lol good for u

[@cbrust1]

Very good experiment! I would like to add that if you fill up a balloon and restrict/control the flow of air some as you deflate it, you will find that there is a extra burst of air coming out just before it completely empties, when it is about the size of an orange. You may want to try releasing the air through a tube so you better control and monitor the pressure.

[@ElPsyKongroo]

You might be my favorite science KZbinr 1 Consistent 2 Concise yet coherent 3 I now know a fun party trick

[@darkraft1020]

I got that straight away, intuitively. Think I have had too much experience with NOS balloons xD

[@MysticOceanDollies]

You said I was wrong, but I'm right.

[@antman674]

Great video! Very interesting results, but makes total sense now.

[@alirezahedayatfar4665]

Thank you for running this wonderful channel. Nice to see this experiment. But what whould happen if you enter the air continuously ( by an air pump) instead of blowing into it ( which transfer the pressure changes of your own airway system)?

[@shelbyb425]

They may both be smart, but NEITHER of them could spell the word BALLOON!!!

[@lulu9001]

I LOVE DIS im really into physics! my dad had a professer that teached physics and still does. Im 10 and im going and learning from that professer every week! its fun!

[@thefoxking6937]

I love this channel it is really could with the visual experiments rather then just physics and number thrown at you

[@stephen.t.slater]

Presumably each time you inflate a balloon to a given size it will always contain the same pressure, but if you deflate the balloon to a given size then the pressure will vary depending on how far it was inflated first? So by inflating to varying sizes then deflating you could create a row of balloons all the same size but containing different pressures or a row of balloons that all contained the same pressure but are different sizes. Is it then possible to set up two balloons that are different sizes but contain the same pressure but with the smaller one inside the bigger one, and if you could do that then the pressure on the inside and outside of the smaller balloon would be the same so would the balloon still be stretched? Also, if after the initial blip in pressure the pressure drops whether you inflate the balloon further or deflate it, what happens if you keep partially deflating and re-inflating over and over? I can’t imagine the pressure could go negative or even down to zero and the balloon still be inflated, so does the pressure actually asymptotically approach to some fixed minimum level where you can inflate and deflate and the pressure actually becomes constant? After a single inflation and deflation does the pressure approach this same value and then reach a point where the behaviour changes and it drops back to zero more quickly in a counterpart of the blip when you start to inflate?

[@itsethan8484]

Put hydrogen peroxide in a vacuum chamber!

[@agente7374]

It's Ethan! water?

[@TheChemicalWorkshop]

With low pressure you vaccum destill the water leaving pure hydrogen peroxide 30% H2O2 ist quite dangerous (if you get some on the skin you can see it dying and getting white and peling off (+pain) 99% h2o2 sets stuff on fire....

[@burakoner7973]

We call it plastic and elastic deformation

[@flippinmachine]

I would like to add the reason why the balloon loses elasticity when inflating. When you first have the uninflated balloon, the moleculair chains are oriented like spaghetti in a bowl, twisted in eachother with no order. When you inflate the balloon, the moleculair chains get stretched untill they lie straight. During the straightening the elasticity is high (which you can see in the part just after the spyke in the graph). After that the moleculair chains are straight and then you are actually trying to pull the molecules apart. The moleculair bounds are much more rigid and thus the elasticity goes down and the volume doesnt increase as much anymore and thus the pressure goes up more quickly. As demonstrated with the elastic band and waterbottle experiment, when you relax the plastic afterwards the elasticity of the moleculair chains is pulling the plastic back into shape but that elasticity is lower because the chains dont go back to the chaos spaghetti orientation. And thus the weights arent pulled as far back as they stretched. When you deflate the balloon and leave it alone for a while the chains will become loose and relaxed again and so it will behave again like I described in the beginning after a while. Btw, Sorry for my English and I hope my story made sense XD English is not my first language :)

[@ashvw]

This was an awesome video! I had no idea baloons acted like that. I almost always learn something on your cahnnel.

[@mihitm]

Starts at 5:40

[@jumpintheairxd]

Fiery_Eagle hero

[@jenuiss2415]

Not all hero’s wear capes

[@schavan1]

Work of god

[@corn4340]

If you start at 5:40, you have no idea what’s happening

[@chronosmusic3321]

What about thanking you later??

[@otl-ftw4875]

Skip to 5:30 to see the results

[@eriktomas4550]

Otl - Ftw oof

[@reejeshpk8262]

Awesome experiment bro! You made it really practical. Cool explanation!

[@TsubikiKoya]

I always love your videos, it's so cool to see something cool happen, and then have someone actually explain why.

[@plzletmebefrank]

"This should be really weird to you..." Nope. I mean, the balloon gets bigger. It can't have more pressure while expanding, that's not how density works. Nice try though.

[@danbanowetz]

If the rubber acted like a metal or most other materials that follow Hooks law, the volume and pressure would both increase as you blew in more air.

[@SilvioAnkermann]

Also, you feel the pressure in your mouth, so everybody who's ever blown up a balloon should be familiar with this initial spike.

[@cjyt4115]

Hello I love ur vids btw thank u for liking my comment on ur other video about what happens to ivory soap in the worlds first vacuum chamber microwave

[@Mikasks]

Kristian Vittrup so you want another like?

[@deadalpeca8099]

Lol

[@zenvir1680]

Literally this video solidifies the theory that I knew about hysteresis.

[@academicalisthenics]

Thanks for sharing your insights!

[@GqoMorNothin]

Action Lab the only channel Thts full of Action😂😂😂 Get it?No? Okay.....😂😂😂

[@nice7444]

Bizarre Disease wow, so funny.

[@tris999x]

I don't get it. Though, I would if you spell stuff right. **that's**

[@amberjade0123]

Bizarre Disease i get it

[@Dominus_Potatus]

Where is your reaction? Make Newton Third Law Great Again!

[@musicalgenius573]

*Cough* that’s uh... very *cough* funny *cough cough*... So is my theatre group...

[@Shanayoung667]

You- "I wrote a little program for my pressure measuring machine" Me....I can't even write a thank you card :/

[@amandam8623]

A newborn's lungs sorta do the same thing when they're born. It's pretty cool

[@eltouristoduo]

GREAT VID !! I strong suspected right away the balloon of different sizes would have same internal pressure because the larger volume does not mean larger pressure. Sure the overall surface area pressure added up is larger, but then, it's over a larger area ! I think the blowing-up-spike is related to the wall being thicker when it's smaller..it takes more 'overpressure' to stretch it to thinner, but that amount required decreases as it gets larger (thinner). But you're not measuring flow which is increasing sorta as a ballon '2x' big will have like 4x volume or something conceptually (I forget the formulas). So I'm blown away by the 2 difference scenarios, and that thing 'memory' (elastic hysteresis) I will have to study that for a long time to get and intuitive grasp! I'm not a human calculator nor do I use formulas, because I'm not required to, lol, But, like many of us, I love to form mental models of behaviors that are pretty good. I think maybe if you stopped in the middle of the initial inflate effort it would not stay at that spike pressure but drop to an intermediate pressure? Kinda like conceptually 'stretch inertial' but that's maybe too loose a way to use the term inertial. It would be interesting and informative to do test inside a vacuum. That would take less pressure of course, but I'm curious if there would be any differences in the overall basic behavior. I think this would be different with different materials? Like metal springs?

[@gerardob7364]

I lost 20$ :/

[@monasimp87]

He got confused

[@zerokun2655]

@Dylan Prothero instructions unclear

[@horrido666]

You are pronouncing hysteresis incorrectly. The E before sis is a long EEEEE. Its like History Sis.

[@clintonjones955]

...Osmosis ...now tell us about the smeared out density of matter, Mr. Science

[@JeremyMcMahan]

Very interesting. The slingshotchannel and smartereveryday did a collaboration video a few years ago where they explained that if you tension a slingshot and then immediately fire it you get more power then you do if you tension it and then pause before firing as some of the potential energy is lost to heat in the later example.

[@roxiedias9103]

Vary cool

[@jacobedwards3625]

I believe it's pronounced his-tuh-ree'-sis, not hi-stair'-uh-sis, but other than that this was a great video that actually surprised me, thanks!

[@TheActionLab]

It’s my southern drawl

[@jacobedwards3625]

That's fair. It didn't affect the content anyway. I remember learning about hysteresis in one of my engineering classes, but never really understood it outside of gear systems, and this video helped a lot. Thanks again!

[@brynnhill8848]

The Action Lab I think OP meant you put the stress on the wrong syllable. HysTEResis vs HysteRESis. (But tbh I don't know which one of you is right so )

[@jackmortimer329]

According to Dictionary.com, you just have the accent on the wrong syllable. An ear catcher but does not change the interesting content of the video.

[@christophergrullon3504]

Great expriment! Very helpful!

[@Loccyster]

"It's not a trick. It's science" **explains the science so you know how to do the trick**

[@ebuks505]

Starts 5:00

[@liom.6349]

It starts there if you want to ignore the actual learning part. Thoght don't take this as an insult the science is just cool and deserves to be watched.

[@jinhan7260]

1 first viewer ^_^ I love ur videos so much. You help me out every time. Some people think that I'm really smart . Thanks to you.

[@AnkitShai]

Really informative man! Thanks :)

[@RijuChatterjee]

I recently learnt about conduction hysteresis in a gas discharge tube while building a distortion element with a neon lamp