I love how he just throws it around like its water

Wish i could attend these talks...or i guess teachings. Even though i knew why it boiled.. its so interesting to see someone demonstrate it like this with this kind of passion and knowledge.

See if I had a teacher like this MAN school life would of been great

The closest we have to a full lecture is the one called "Liquid Nitrogen Show!" It was shot during one of our Open Houses, so a few things were dropped for time. And, the camera man wasn't present for the beginning of the show. But, between that one, this one and the "Liquid Nitrogen and Fire" one, you have a more or less complete liquid nitrogen show. The complete tape of this presentation exists. Don't know if we'll ever edit the whole thing together...

Does anybody else find it EXTREAMLY Halirious when he just misses pouring the liquid nitrogen on purpose?

i love how he gets them to engage and making the class fun to learn and watch...great teacher!

I wish I had that professor .-.

In order for future teachers/profs to get hired, they need to have this man's enthusiasm for teaching. I would never skip a class if I had him as a prof.

I would have loved to participate in such classes when I was at school. I would've probably got more interested in science. you do a great job. keep on!

Something like 75 liters. That's ridiculously large when you realize that the Dewar we normally fill for a show is 10 liters.

It is very nice of you to give the children such a practical approach to concepts of science congrats and please continue to do this

I have worked as a ski lift operator. One day I was working the top shack while the kid's ski team was exclusively using that lift. This is a very laid back job because being on the ski team these kid's all know how to get on and off a ski lift without any issues... Or so I thought. At one point I saw two kids coming up. One had his face very close to the bar that holds the chair on the lift while his "friend" was waving and yelling frantically. Being somewhat familiar with the behavior of both young boys AND cold metal I figured out, before they got there, what had happened. Of course one boy dared the other to lick the pole, which of course the other did. I was able to quickly and painlessly remove the kid from the pole with a bit of water. But I made sure the kid was very embarrassed. I made sure the bottom guy told EVERYBODY what had happened! It really was very funny.

When youtube recommends you a video that is not only fun but teaches you something, 10 years later.

mom: OMG how are you still not sleeping its now almost 5:00! me: MOM IM LEARNING! *awkward silence*

Amazing Professor!

Not a school. Jefferson Lab is a Department of Energy basic physics research facility in Newport News, Virginia.

this guy is a super good lecturer

Really helpful sir. thank you

Thats so awesome. I've been in that room for those experiments. That was an amazing day.

Brilliant, simply brilliant.

I wish i had science teachers like this

It is quite interesting. It shows some forces/principals in action. The molecules diffuse from an area of H-L concentration (represented as pressure). It shows the leidenfrost effect and it also i some ways shows le chataleirs principal (unsure on the spelling as its been a while since i done science at school)

i want to go back in time and take lessons of physics from him.

What is the name of this guy? I see him everywhere and he is incredibly fun to watch.

@lPurpleHD A more complete version is coming, hopefully by mid-December. It's not from this particular filming, but it does cram most of the standard demos into a relatively short amount of time.

@JeffersonLab so how would i be able to come wach these presentations or what ever you want to call these?

@meowmeow5 Working on it. We had the Open House video to push out first. That will get subtitles, too. It just takes a while to do it manually.

No real damage is done. The worst it does is it causes the rug to separate from the floor. The rug is actually 1' by 1' sections and when individual sections get cold, the material the backing is made from contracts, so the square sections will bow up. Once it warms up again, they go back into position, but whatever glue was used doesn't work anymore, so there are 'loose' sections of carpeting in that area. The gloves are leather welder's gloves. Cowhide, I think.

Hey guys really enjoy your show. I have a question though, what happens when you put liquid nitrogen in a glass container? will it shatter? Also, what if you throw that glass container at a wall or something metal, will the liquid nitrogen freeze whatever it comes into contact with?

This is the kind of teacher that deserves the pay raise.

Thanks!

Sorry, I forgot to mention - great video as always! - And thank you for your reply :) [here in Europe it's quite hard to find Liquid Nitrogen and also it's quite expensive - 5 euros/liter - about 25 US dollars/gallon]

Not likely. Most of the missing sections are already covered in the 'standard' Frostbite Theater series. There's also a nearly complete liquid nitrogen show from one of our Open Houses up here ('Liquid Nitrogen Show!', I think) that would basically be repeated if this presentation were wholly uploaded. There's a section on plasmas and a beginning electrostatics section that may eventually get uploaded. If that's done, only the general Lab overview would be missing.

Man this is awesome. Wish we had something like this at our school.

Hey, I'm from Britain and your the best teacher ever 😂😂 I join in with the lesson !!! 🇬🇧

@JeffersonLab Thank you for your explanation. Now I understand it, it's the same as boiling water, it doesn't get hotter after it boils although the nitrogen still feels very cold because it has a low boiling point. And the bottom and sides from the kettle are as a hot plate for the nitrogen. I like these videos, I've learned almost everything I know about chemistry and Physics from videos like these. Better then TV :-)

@Astanize Yep. When you have nearly instant access to a 9,000 gallon storage tank, you get into that mindset.

@JeffersonLab where are you guys located exactly?

Thanks! I thought anything it comes in contact with would freeze instantly.

I like how this video abruptly ends when he's asked vulanteer from an audience...

this is awsome!!! what school do u work at>?

From the thermometer where it says nitrogen and helium boils, is it the smaller the atom, the lower the temperature it needs to boil?

@JeffersonLab ooo awsome :) i wish i could come to a seminar but i live way to far away lol :P great videos by the way

This guy is awesome, I wish I had teachers like this when I was in school

@JeffersonLab When vid finished

This is where he works. The students came to Jefferson Lab for the presentation.

@cursemarkfan Well, assuming you're in the area, you'd pick a date listed on our website and call/email for a reservation. Doing a search for 'Jefferson Lab Physics Fest' should bring up the right page.

If you were to pour liquid nitrogen on a circuit board (ignoring factors such as the circuit board freezing and cracking) would the liquid nitrogen make it short out as if water was poured on it?

I know but you gradually explain everything and just are a good teacher, if you know what I mean.

@JeffersonLab I see but is there something that is cooler then liquid nitrogen ?

i would have loved to have a teacher like this when i was in school... class would have been so much fun.

How much would it take for it to be a hazard in a room that large? (if it was all dumped across the floor at once)

No, the whole presentation isn't on KZfaq. The other segments that have been uploaded are called "Should a person touch 200,000 Volts?" and "Liquid Nitrogen and Fire!" Other segments may also make their way up.

My nostalgia is going nuts i was in this class they filmed

Nice!

Can u make a video of a ENTIRE lecture please? I am in 6th grade but you completely capture my attention

@tylerwalker2 I don't work at a school. I work at a place called Jefferson Lab. It's a Department of Energy basic physics research laboratory.

i have a question, i know liquid helium is a couple of degrees above absolute zero so can you get solid helium?

Thank you for the reply, from now on i'll know to keep my liquid nitrogen below 70 liters when i go to large conference rooms.

@Almontmarine Captions will be up in a few days.

Dropping comment for future

is that the only place you go and teach and stuff

Love how he just pours it all over the carpet.

I LOVED THIS! I'm in college in Denmark :-)

@insAneTunA All except that the liquid nitrogen isn't warming up. It remains at its boiling point as it changes from a liquid to a gas so, technically, the liquid portion doesn't get any warmer than it is.

This guy is literally my undercover science teacher. Im not joking.

@wvang0013 Usually, glass doesn't care for it too much. We do use Pyrex containers for some of these videos, but you typically wouldn't in real life. If you threw a glass container filled with nitrogen against a all, you would end up with liquid nitrogen all over the place. It would quickly boil away. It wouldn't turn into a solid.

4:58 "I wouldn't go drinking it." *looks at related videos* "Drinking liquid nitrogen" SEEMS LEGIT.

I LOVE THIS GUY

Best teacher eva!

@CAZZERNERY Not completely. If it were, then you would expect hydrogen to have a lower boiling point than helium, but it doesn't. The mass of the atom/molecule is important, but so are the forces between individual atoms/molecules. The more they 'stick' to each other, the more difficult it is to make them change to a gas.

This is the kind of video to make people want to go into the STEM field of work

why go to other place if our class rom is here in youtube :) , is the same to be there or watch it here, the only no big deal problem is that we learn in parts :). thanx JeffersonLab teachers :)

Metric system, however, is one of the International Units, like grams. International units are the standard unit for science subjects. I'm not saying that the whole U.S. country should change it's measuring system (although that would be quite convenient), nor that the teacher should do presentations using metric system, but it would be nice to get the students accostumed to the metric system since it will probably be the one used in school exercises

@htirah100 Different things have different freezing and boiling points. Nitrogen's is low, water's is 'normal' and the iron the tea kettle is made from is high.

what pressure would be needed to keep the liquid nitrogen a liquid inside a closed cell container?

can you come to Los Angeles?

Where can I find more of these videos?

Yeah... I know, still a great display though... I really enjoyed watching...

I wish my teachers in school were like this!!!! scratch that - I wish all teachers were like this!!!!!

LOL 1:26-1:28 the guy in the blue shirts raises his hand twice XD

@JeffersonLab When the vid stopped, everytime it must stop, i wanna watch the whole lesson xD

I think the important thing is the preasure

@Jon58004 Helium can be frozen, but it has to be placed under pressure. If you could manage to cool it to 0 K, helium it would still be a liquid under normal atmospheric pressure.

He should do a TV show like Dr. Proton. I am sure it's going to be on TOP.

@keekatdanceparty Nitrogen does not conduct electricity, so the board would not short out.

This guy is truly a card he is freaking awesome

the students are so well declipined

@keekatdanceparty Actually, that is one use for it.

i guessed that at the start of the video (and i also never had heard about this problem), do i get a star and a happy face?

@67tr876 Sure. Solid nitrogen for one. Liquid hydrogen, liquid neon and liquid helium are others.

INDIA NEEDS TEACHERS LIKE HIM!!!!!

1:02 321 below zero? The American's still use Fahrenheit? o_O

Sir you are the best professor love form india

@superfrenchfrys Where is Yucaipa High School?

nice bro

is this based in a college or high school? if so where? Jefferson Lab

Yes, it has everything to do with the Leidenfrost effect.

if i saw you while i was in school , i probly woullda passed science. lol , now time for me to use you to pass my GED test

"Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere." Does that mean everything that is not 2 degrees above absolute 0 boils? Can quick silver boil?