Liquid Helium and Party Balloons - Periodic Table of Videos

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The Professor shows us how liquid helium is recycled at his university - and comments on reports that party balloons are causing supply problems.
Footage from Brady's Large Hadron Collider trip is being regularly posted at • Large Hadron Collider ... (on our sister Sixty Symbols channel)
More chemistry at www.periodicvideos.com/
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From the School of Chemistry at The University of Nottingham: www.nottingham.ac.uk/chemistry...
Periodic Videos films are by video journalist Brady Haran: www.bradyharan.com/

Пікірлер: 574

@javiermontalban2916 8 жыл бұрын

Hydrogen party balloons, now that sounds like some real fun! :D

@Flightstar 9 жыл бұрын

I wonder if the professor uses a Van de Graaff generator to do his hair in the morning.

@TubbyTronPwnzU 9 жыл бұрын

wait hydrogen balloons explode?... why the hell do we not use that instead of helium! much more fun for parties!

@indigestive 12 жыл бұрын

This was like a backstage science video. I really enjoy looking at this sort of equipment that works behind the scenes of a science facility. I had no idea there was such a thing as recycling Helium or even where it was sourced.

@TheIronpoptart 11 жыл бұрын

if you use hydrogen balloons, your party will be a blast! haha

@Lizlodude 9 жыл бұрын

"Well, you could fill balloons with hydrogen" BANG "but then they explode, "

@bullsquid42 10 жыл бұрын

Hydrogen it is then. Exploding balloons sounds like an awesome party to me!

@Lessinath 11 жыл бұрын

You can always tell when the Professor is extra excited about something and I always know it's going to be something particularly cool as a result. In this case, literally as well!

@mdbee5 10 жыл бұрын

Holy crap, that machine uses an 1/8 of a megawatt!

@THEMACINTOSH25 9 жыл бұрын

Excellent Video. I enjoy seeing the Mechanics behind Chemistry.

@AluminumStudios 12 жыл бұрын

I love listening to the professor speak, he shares knowledge so easily. I will definitely look lightly on helium balloons (no pun intended) from now on.

@MiningBlock 12 жыл бұрын

wow, why can't school be like this, I swear I have learned more about helium in this 12 minute video than I had in 10+ years of school. great video, I really enjoyed it.

@MrThetagcraft 12 жыл бұрын

These videos really are educational and interesting, I've been studying Chemistry, and these videos have saved on tests in more than one occasion.

@VascoElbrecht 12 жыл бұрын

i never realized that helium is so valuable! Thank you for this video = )

@MasterOvCreation 12 жыл бұрын

I want to go to the professor's parties! Exploding hydrogen balloons sound much more fun that helium ones!

@twycross3 12 жыл бұрын

That was a REALLY good video!!! Loved every minute of it!!!

@Trotskisty 12 жыл бұрын

Great in-depth technology tour. Do more of these.

@boldger13 12 жыл бұрын

AWESOME COMBINATION OF CHEMISTRY, PHYSICS, AND ENGINEERING OF EQUIPMENT!!!!! LOVE IT! ONE OF YOUR BEST VIDEOS.

@ylette 9 жыл бұрын

Why don't we make the Earth's atmosphere heavier, so we can use our current atmosphere for balloons?

@zachchaney9313 10 жыл бұрын

what im going to do on my birthday is fill a balloon with hydrogen, use a fuse as the string, light the fuse, enjoy.

@jackharper24 11 жыл бұрын

What an interesting video about a topic i never even knew existed or had an idea about its extensive uses. I love this channel

@asteel94 12 жыл бұрын

Got to love his periodic table-tie!

@Fr33zerg 8 жыл бұрын

Your necktie. It's gorgeous.

@ninjaplease123 12 жыл бұрын

Hello professor or Brady, love the vidoes. Can you make a video explaining how compressors work?

@YourLeftArm 11 жыл бұрын

Yes, but spreading the word about the shortage of helium will probably save more than 120 balloons worth of helium

@lisapratt1 12 жыл бұрын

nice video i always learn so much from you guys...thanks again.

@NoorquackerInd 9 жыл бұрын

I'LL HAVE A *REALLY* GOOD TIME WITH HYDROGEN BALLOONS!!!

@sachamm 12 жыл бұрын

Another great video, thank you so much for producing these! I'd be interested to know what your cadre of wild-haired scientists think about making more helium via fusion. It is obviously not feasible now, but might it be someday in the not-to-distant future?

@Oneaphelion 12 жыл бұрын

This is all so interesting, stuff one would have never thought of, on-site helium recycling systems. This is why I'm going to be studying chemistry this year.

@0zero0360 11 жыл бұрын

He never went there before... and still knows the places of every single machine... how amazing

@leokimvideo 12 жыл бұрын

heavy duty talk on a light gas

@BuckHubach 12 жыл бұрын

I think this is the best video I have ever seen.

@IAlternateMyCapitals 12 жыл бұрын

I really enjoyed this video, good job! :)

@MaxJusticz 12 жыл бұрын

These videos are fantastic. Love the physics hair.

@Ichijoe2112 9 жыл бұрын

I think the "Term" your looking for is Mylar...

@DontStopMoveOn 12 жыл бұрын

1000th like from me. Love your videos, keep up the good work :)

@MattSiegel 9 жыл бұрын

4:25 *great* editing, hahaha! :D

@MasterAccordionKing 12 жыл бұрын

Love the tie man!!!!

@OMGaPooPooLaser 12 жыл бұрын

always happy to see a Linde Tank, after spending a work placement there :P

@xBADNEWS88x 3 жыл бұрын

Great stuff!

@Evilbunnynyoron 12 жыл бұрын

the professor's voice at 9:41 was adorable!! X3

@Subparanon 12 жыл бұрын

@Jeuhann As I understand subatomic physics, the electron isn't actually moving from A to B in it's orbit, it's more like it goes from A to B without going between. Something to do with wave particle theory. In any case they share electrons and want to fill their outer valence because of the positive charge of the protons. It's similar to the way a magnet wants to connect with another magnet of opposite polarity. But that is a weak force, the forces inside of a nucleus are a strong force.

@Muonium1 12 жыл бұрын

An excellent video as always, loved seeing the liquid helium factory. But I have to take issue with the idea that we're running out or the prices are high because of children's party balloons. That's just silly. The overwhelming majority of helium is used for controlled atmospheres, cryogenics, welding, and leak detection. Only 7% is used for buoyancy purposes, and then that's mostly weather balloons and blimps. The amount used for parties the world over is utterly trivial, 1-2% max.

@OracleAnne 10 жыл бұрын

The US put a low price on it in order to sell off the stockpile in the 70s. If you paid market price for heliun, one standard latex balloon would cost you over $100.

@keithlarsen7557 9 жыл бұрын

Why can't we do methane or hydrogen balloons?

@StringsCrusader 12 жыл бұрын

aaaaah! man.... i love this channel. :D

@pacogoatboy 12 жыл бұрын

Though I agree entirely that what trespire was referring to is mistaken (He2 is not the form found in balloons), dihelium has been made, but it is not a stable compound. The helium wiki has some good information in the Compounds section if you're interested.

@troypetryk2043 9 жыл бұрын

Which university is this ? I want to go there!

@zorawar98 12 жыл бұрын

You have one Amazing Tie!

@JonneKonink 12 жыл бұрын

I totally agree XD The best pickup lines always have something to do with van der Waals interactions xD

@trespire 12 жыл бұрын

What you heard is correct. Helium has a very small molecule (He2) so it will leak even from the tiniest gaps between sealing surfaces. There are specialized "Helium sniffer" detectors. Typically used to check high vacuum equipment.

@gulllars 12 жыл бұрын

@Jeuhann if you want a good explanation of that, you need to go into quantum states and wave functions, which i guess would be more fitting for 60 symbols. If you just want the bonding types and orbitals it would probably fit Periodic Videos.

@mattrdirks 11 жыл бұрын

use hydrogen for party balloons, it floats, and you can light them on fire too! my kind of party

@aosteklov 12 жыл бұрын

hay Brady, my name is amir steklov and i'm a big fan of your youtube channels and a film maker my self. i think that is a good time to think abut DVD colections. and, what abut the LHC visiting in 60 symbols? looking forward to see that :)

@coldlogic1 12 жыл бұрын

@Jeuhann wow this is an interesting question id like to know also.

@KemaTheAtheist 12 жыл бұрын

@Jeuhann The electrons don't sit still, but when a bond forms, the orbitals change. The easiest example is two hydrogen atoms. Alone, there's a relatively spherical orbital around the nucleus called an s orbital. As H2, the two spheres kind of compress and overlap to form a one elongated orbital around both H nuclei. It's more complex with the addition of p orbitals and hybridized orbitals, but the short version is that orbitals overlap to form the bond and form a new electron configuration.

@pyrosparkes 12 жыл бұрын

@6:45 "the air would freeze and block everything up"... the whole idea of air turning into a solid is rather mind blowing

@liquidthex 12 жыл бұрын

Very cool video of helium recycler thank you!

@DevilMaster 12 жыл бұрын

That was awesome! Was liquid helium really light blue, or was it just the environmental lighting that made it look that way? And yes, the professor's voice DID become a little higher as he was talking around all that helium. :-)

@quackerzdb 12 жыл бұрын

Excellent! Helium recycling is incredibly interesting and responsible.

@RubentoBox 12 жыл бұрын

What an awesome tie.

@ddeemmoonnaass 11 жыл бұрын

cool videos you making guys i love it

@ustoledmysammich 12 жыл бұрын

I will never fill balloons with helium again. Thanks for letting me know how I can help save science professor! (and Brady too of course)

@shaithesm0ck 12 жыл бұрын

Very interesting video, nice to see some infrastructure in the universatiy

@Firesoar13 12 жыл бұрын

Is it possible to manufacture helium through fusion or fission? The energy released could help with the diminishing coal, oil and natural gas as well.

@rjhrjh3 12 жыл бұрын

@0:25 "...the reason helium is running short is because everyone is filling their party balloons with helium." That is a direct quote from the professor. Even if we all stopped using helium for party balloons it would not make much difference.

@Subparanon 12 жыл бұрын

@Jeuhann Think of the valence electron field as a magnet in search of another magnet, and once it gets it, the attractive force is equalized and will not attract any more electrons. The actual force is the electromagnetic force, and it works both ways, those electrons also repel other electrons they are not bonded with. When you push against something solid, you aren't actually touching it. The electromagnetic force in your finger is repelled by the force of the object you are pushing.

@LilReaper1010 9 жыл бұрын

well said professor

@Subparanon 12 жыл бұрын

@Jeuhann At the electron level that is. It's hard to be concise with character limits in comments. The molecules in your finger are made of atoms, those atoms have electrons, those electrons repel the electrons in the atoms of the object you are pushing against. This force is quite strong. Gravity for instance is weak. Drop a ball off a roof it takes several seconds for gravity to pull it to the ground, but only an instant for the ground atoms/electrons to repel it.

@LiiMuRi 12 жыл бұрын

The white vapor coming from the He hose at about 09:30 is actually mostly water vapor condensing at the low temperature, and maybe a little oxygen and nitrogen too.

@ROTSTarge 12 жыл бұрын

just curious, when we see more efficient fusion reactor technology, would that increase the amount of Helium we have, or what? I see two possible problems w/ this: 1: Not using Hydrogen in the Reactors 2: Not being able to extract the Hydrogen from the Reactors I guess I'm asking if it would be feasible to have Reactors being used to generate Helium for scientific purposes, once we can make Fusion Reactors more efficient.

@simo9445tsns 11 жыл бұрын

I loved this video

@Probablyacowtbh 12 жыл бұрын

@disorganizedorg Fully agreed!

@WhatEvsy 12 жыл бұрын

you should do a video on 2,4-Dinitrophenylhydrazine, as it's also known as Brady's reagent

@deepfreezzeer 11 жыл бұрын

turn the captions on and read them at starting at 3:00.

@hkyeung1992 12 жыл бұрын

Helium is also used to send radiosonde up into the atmosphere, and it's important for weather forecast. If there was shortage of helium, don't blame the meterological agencies for inaccurate forecasts.

@raydredX 12 жыл бұрын

Even though I'm not at university yet the difficulty some teachers have to say I don't know and how much they sometimes end up rambling around is annoying. To be able to say I don't know but I speculate that X is a great answer to have.

@Ilovelazers 12 жыл бұрын

NICE tie!

@JordanSmith507 10 жыл бұрын

What kind of compressor is used to compress the helium?

@themanwiththepan 12 жыл бұрын

Exploding Hydrogen balloons at your child's 5th birthday party...

@2nd3rd1st 12 жыл бұрын

9:42 Lol at Prof's chipmunk imitation

@TheEpicMurloc 12 жыл бұрын

@MemorySPACECard anything less dense than the atmosphere?

@thewii552 11 жыл бұрын

Exactly!

@DocDirtrat9472 12 жыл бұрын

I agree Professer..

@LT3141592654 12 жыл бұрын

So, in theory: the earth will someday run out of helium, because it rises untill above the atmosphere, where it will be lost in space? We can't really 'make' whithout using radioactive decay, and small amounts of helium will always leak, right? Fantastic video by the way: AS ALWAYS!

@terawattyear 12 жыл бұрын

Yes, I had heard about the frivolous use of helium becoming a potential future problem several years ago. The basis of that issue was there might not be enough helium available for use with super-cooled communication cables that could be invented eventually. This video is concerning indeed as now it seems the future has caught up with the present (or vice-versa).

@atsf3780 12 жыл бұрын

I simply cant get enough of the helium voice!

@Akoalawithshades 12 жыл бұрын

@XXsardarXX did they not extract the helium later?

@KemaTheAtheist 12 жыл бұрын

@techhungry1 That's what the video I gave was supposed to be about because covalent bonding was what Jeuhann asked about... That's why the little @Jeuhann was there at the top of my comment. It was a comment to him, not a general comment about the video. Next time, don't jump into a conversation you don't belong in. Context: It's important.

@ReinhardERNST 12 жыл бұрын

I love you guys.

@ytxstream 12 жыл бұрын

@Sejo323 well the helium that you buy is made in a similar way why should it be much cheaper. and also the point is not to waste helium

@C0n7ax 12 жыл бұрын

Professor, have you considered staring in a remake of Back to the Future as Doc Brown? If not did your hair star in the original? I love these videos and your presentation of them. I feel guilty for having used those helium balloons to make funny voices after finding out how difficult it is to retrieve on earth.

@kventinho 12 жыл бұрын

03:40 That tie is actually a periodic table-patterned tie! He is nerdier than Sheldon Cooper.

@ImTheWiseGuy 11 жыл бұрын

I ran the professor's numbers and got this (putting the dollar sign at the end of the number for unit consistency in the calculations): 20,000 $ / 3000 L = 6.67 $/L. A bottle of wine is typically 750 mL, or .75L. 6.67 $/L * .75L = 5 $. So liquid helium costs about the same as cheap wine. ====The More You Know=★

@S671 12 жыл бұрын

I like his hair, i want him to flip a switch and laugh maniacally

@wupme 12 жыл бұрын

There are some ultrasonic methods to do this, or you can just pressurize the vessel, and look if the pressure drops.

@Pyrolonn 12 жыл бұрын

Great video! I wonder why there isn't full employment of high temperature superconductors? Those can be cooled with liquid nitrogen which we'll never run out of.

@xxhitman1992 12 жыл бұрын

i agree completely.

@KemaTheAtheist 12 жыл бұрын

@CantBeSober It's probably due to the temperatures involved. Copper would develop ice, become prone to cracking/bursting, and more at temperatures as low as the professor was talking about they needed for liquid helium. PVC is also better insulated.