Nitrogen - Periodic Table of Videos

[@periodicvideos]

These videos are made by Brady Haran - check out his "Unmade Podcast" here: bit.ly/UnmadePlaylist

[@BxnkrollBeatKillerBEATKMB]

u are boss

[@jeremydennard8362]

Damn now i wish I would have became a chemist it looks like y'all do a lot of cool stuff

[@BxnkrollBeatKillerBEATKMB]

@@jeremydennard8362 costs tons to set up :/

[@jeremydennard8362]

@@BxnkrollBeatKillerBEATKMB my son wants to get into the snake venom extraction I bet its pricey as well to do

[@BxnkrollBeatKillerBEATKMB]

@@jeremydennard8362 yep. I would recommend less advanced stuff as a work up to reward (extraction you mentioned). It will capture interest in many aspects of chemistry and also allows you more time to afford advanced glassware. Stay well!

[@kiritgupta]

Please feel free to make hundreds of KZbin videos about Nitrogen (or anything else for that matter) and do not worry about not telling us everything!

[@memekingdom8973]

chem class for free ya'll

[@BxnkrollBeatKillerBEATKMB]

i believe same

[@briancooley8777]

I want him to tell us everything tho

[@BxnkrollBeatKillerBEATKMB]

@@briancooley8777 i see

[@sabitamahela]

Lol

[@glenmartin2437]

Dr. Charles Goetz, my advisor as a chemistry major at Iowa State University, made the initial discovery that cream could be whipped when dissolved nitrogen at high pressure was released from the cream (circa 1930). I am a retired chemist. Thank you for your videos. Rusky

[@nigeljohnson9820]

I once froze a single sugar coated wine gum in liquid nitrogen to see what would happen. It turned to a very brittle glass like material that shattered into very tiny bits when accidently dropped on the floor.. Unfortunately the tiny bits quickly turned back into very sticky sugar. This had spread finely across the whole of the lab floor, sticking everyone's shoes to the floor as they walked across it. Needless to say I was not very popular and had a lot of cleaning to do.

[@micahphilson]

"When will people understand sometimes great advancements in science sometimes have uncomfortable repercussions? It's just a normal part of the scientific method!" "Shut up and just grab a mop already!"

[@Lukiel666]

But you were able to do a wonderful demonstration of the properties of sodium stearate and/or ammonia.

[@nigeljohnson9820]

Lukiel666 I just about understand why sodium stearate might be an ingredient of wine/fruit gums, but ammonia ?!!!

[@Lukiel666]

LOL Sodium stearate is soap. For washing the winegum residue off the floor. Ammonia also for cleaning.

[@nigeljohnson9820]

Lukiel666 sodium stearate is also used as a food additive, which is why I was willing to believe it might be an ingredient in the process of making wine gums. I think we used sodium lauryl sulphate and water. As I recall the liquid nitrogen was intended to cool an ultra low vacuum diff pump, but I had been supplied with far more liquid nitrogen than was needed for my experiment.

[@AndreAConquerorII]

I never want to hear the Professor say "The banana goes absolutely rigid" ever again...

[@matsko6527]

Andrea Cordani Get your mind out of the gutter.

[@taicanium]

( ͡° ͜ʖ ͡°)

[@czdaniel1]

How do you think Viagra works? ...process of erection involves the release of nitric oxide (NO) in the corpus cavernosum as a result of sexual stimulation. NO activates the enzyme guanylate cyclase which results in increased levels of cyclic guanosine monophosphate (cGMP), leading to smooth muscle relaxation in blood vessels supplying the corpus cavernosum, resulting in increased blood flow and an erection.

[@czdaniel1]

Nitrogen!

[@professorpoliakoff4837]

The banana goes absolutely rigid

[@micahphilson]

4:45 Man, those newfangled airbags. Can you imagine them putting those in every car in years to come? Progress is at hand! Before you know it, they'll be forcing us to use seatbelts too!

[@Nilguiri]

As long as they don't force us to talk like the narrator in the "airbeg" video.

[@KairuHakubi]

hopefully soon the idea of car accidents will be this laughable thing from the past when people were actually allowed to operate vehicles that move faster than our reflexes can handle, for hours at a time when our attention span lasts seconds.

[@strider04]

Kairu Hakubi seconds? No

[@KairuHakubi]

forgot to mention, some people have the delusion that their attention span lasts longer than that, not noticing the many little gaps and lapses. Those are the most dangerous of all.

[@my3dviews]

Clearly we have attention spans longer than................now I forgot where I was going with that.

[@DrakkarCalethiel]

Those elemental series videos never get boring. Especially the new ones are great to watch!

[@paulwirkus4182]

Neil is the most badass looking chemist I've ever seen.

[@jhyland87]

Yes, chemistry in leather pants. $10 says he has a pair of assless chaps just like those.

[@Angelito_Valentino]

You got that right. 😎

[@electronicsNmore]

Always highly informative

[@Tekel-Upharsin]

I have to appreciate their attention to detail. At 8:00 you'll see white paper behind the experiment so the gas would be easily visible on camera.

[@vlogerhood]

We need to discuss the elephant in the room...Neal's leather pants.

[@therocinante3443]

vlogerhood I was scrolling through the comments hoping nobody had mentioned it yet!

[@Gajoobles]

Rides a motorcycle.

[@JurrevanHerwijnen]

vlogerhood some cool fact about nitrogen and demonstrations.. yet me too had to rewind when he walked down the hall and I was sure It wasn’t normal jeans. Then realizing he is also wearing motorcycle boots.. and the leather pants made more sense... although I wouldn’t be surprised if Neal was actually wearing a pair of leather pants ‘just because’. Haha

[@ShaunDobbie]

They are trousers.

[@2450logan]

Motorbike leathers

[@cotyniccolai]

I have an Inorganic Chemistry exam in a couple of hours, and Nitrogen is one of the main elements I had to study. This video is awesome really

[@paavobergmann4920]

As a biologist, we would use melting solid N2 to freeze samples. We would pour liquid nitrogen into a dewar, then place it in a vacuum chamber with a plexiglas lid, and pump the air out. The nitrogen would boil viciously until only only the slowest molecules remain, and they would solidify to a slurry. Then we would let air back in rapidly, remove the lid, and you would have a few seconds while the nitrogen was melting to put your sample in. The freezing nitrogen is quite beautiful, it forms like spaghetti ice, litlle growing worms of ice, each wit a droplet at the top. The reason we used it rather than liquid nitrogen is that not only is it a couple degrees colder (-212°), it also stays liquid until all the solid is molten, meaning your sample is less prone to the Leidenfrost effect, and you get much more rapid cooling, leading to partial vitrification of the sample which you need to study undisrupted cellular structures.

[@periodicvideos]

Objectivity: bit.ly/Objectivity Chemistry of Lunar Lift-Off: kzbin.info/www/bejne/gH2mo419nLB3Y80 Liquid Oxygen 1: kzbin.info/www/bejne/bX-7l6x5mt-IfM0 Liquid Oxygen 2: kzbin.info/www/bejne/bH-xpWOGqtVpoLc Can of Coke in Liquid Nitrogen: kzbin.info/www/bejne/fXrSqYxvoKp2iKc Mercury in Liquid Nitrogen: kzbin.info/www/bejne/a3qXo6uco6inrrs Nitrogen Triiodide: kzbin.info/www/bejne/gH6okHuba7V7aq8 Ammonia: kzbin.info/www/bejne/hICah2mKgraoeNU Original Nitrogen video: kzbin.info/www/bejne/sJ7Ze2hqoLejoMk The Professor’s Brain: kzbin.info/www/bejne/pGqwmYaZZ76sgdk Videos on all 118 elements: bit.ly/118elements Support us on Patreon: www.patreon.com/periodicvideos

[@borttorbbq2556]

Periodic Videos this was a nice video I'm glad I decided to watch it

[@dangriff12]

NOx also contains nitrous oxide so it contains NO, N2O and NO2. Though not very much N2O but it's massively important as it has a global warming potential 300 times that of carbon dioxide and a half life of 150 years. My dissertation was on the catalysis of Nitrous Oxide. (6 years ago now. I miss chemistry.)

[@ReedCBowman]

Have you done, or could you do, some videos on sections of the periodic table rather than just individual elements? The fascination of the periodic table itself is in the similarities among groups. So a video on Group11 would be as interesting as one on the alkali metals would be. Also a discussion of what transition metals are, etc.

[@chandankumarrana90]

Hello I am chandan. I have a question that how to make laughing gas.

[@ErnstKotze]

Periodic Videos Hi there. What the NOS that people inject into petrol engines to make them run faster?

[@RT710.]

Yay I absolutely LOVE seeing experiments on Periodic Videos!!!! Always makes my day to see Neil, Professor Poliakoff, and Brady at work!

[@omermagen824]

My friend told me that his Mustang is running nitrous. I told him that my Volkswagen is producing nitrous.

[@elephystry]

I thought it was only nitric!

[@billybbob18]

Volkswagen was pretty embarrassed by that whole scandal.

[@mitchelltopolinsky164]

I wish this comment got the attention it deserves 😂

[@dextercruise7026]

@@elephystry combustion engines produce a multitude of nitrogen oxides, commonly referred to as NOx edit: clarity

[@paintdrinker455]

My buddy runs on nitrous. Always walking around with balloons of it. Nice guy.

[@ChoppingtonOtter]

How I wish my high school teachers taught chemistry like the Prof - he makes it so interesting!

[@alphadawg81]

3:05 I have to respectfully correct you Professor: it is K not °K contrairily to °F and °C. That said...Thank you for all the effort and time you've invested in making all those fantastic videos!

[@joshuarosen6242]

The Professor started his education when it was degrees Kelvin (which it remained until 1967).

[@AlonsoRules]

The Haber Process for making ammonia from Nitrogen is the most important reaction in industrial chemistry. Life would be so different if Fritz Haber didn't invent it.

[@red-baitingswine8816]

Yes. We might have much more organic farming and a healthy soil biome, sequestering carbon in the soil, with a quite significant reduction in global warming.

[@cheesehead9555]

@@red-baitingswine8816 but there would be much more people dying of starvation and famine.

[@red-baitingswine8816]

@@cheesehead9555 . Sources? (see Johnson, U of AZ, for data on increased yields with his methods - cover crops etc. He claims that this alone could stop or reverse accumulation of CO2 in the atmosphere/oceans! ).

[@red-baitingswine8816]

@Lilith does stuff . Try using a dictionary. I have explained all this here.

[@pearsonbrown6740]

@@red-baitingswine8816 Buddy, ammonia is used to prepare nearly every synthetic nitrogen compound we use. It goes beyond agriculture. Secondly, synthetic applications aren't bad except for when they're overused. You realize that we'd never be able to have fed the growing population with the methods you're describing? I'm an organic farmer.

[@so56.dfjkhds]

I had my last A level chemistry exam today. I just want to say how grateful I am for these videos. They're all so interesting and really helped me to appreciate the stuff I learnt in lessons. Depending on where I end up at uni I may not study chemistry again. It is a wonderful subject and these videos have helped me realise that. Thanks for making them!

[@mr123leafman]

Gotta love those electrophiles ay?

[@zethayn]

And how are you, where did you end up?

[@zethayn]

Wow, congratulations! Is chemistry absent from your life now?

[@dimlighty]

What are you up to now? Just curious.

[@nikoerforderlich7108]

This was an unexpectedly pleasant video. I really loved 9:52 and 10:55. I can't explain why but those two scenes made me smile a lot.

[@sethmapayapa4509]

9:58 So that's why the blood of Horseshoe Crabs is blue, due to the copper. Excellent video Professor!

[@ivanrocha1843]

Excelente video.... Gracias por los aportes demostrativos de la química a toda la comunidad. Continúen haciendo más Periodic Videos...

[@acertainscientificloli6392]

Could you do videos on F block elements in general? That would be great

[@ThePharphis]

ya it's interesting how much their chemistry overlaps (at least for the lanthanides)

[@deralmighty8011]

Tallie Lintra I'd like to see a video on the element of music, as described on the totally not satirical, educational program Look Around You.

[@ThePharphis]

Look Around You is amazing

[@ThePharphis]

not so for the lanthanides... but yes most of the actinides are under very heavy restrictions (plenty of labs make Uranium compounds, but the paperwork and delay is tedious if it's not your specific area of interest). I personally have used all the lanthanides except the radioactive one (Promethium). Their chemistry is also very similar to Yttrium. However, lanthanides vary considerably in magnetic and electronic properties so they are quite interesting not to study individually but in series since they produce mostly isostructural compounds

[@KarryKarryKarry]

Well if you haven't got the time to watch all of the videos and you need easy answers you can start at Uranium and just go from there. There's a bit of physics in that one as far as i can recall.

[@barharborbasher249]

☕️ Love morning lessons

[@RMoribayashi]

Back in the 1970's my mother would wonder why ocasionally fresh cans of whipped cream would be dead. Turns out kids all around the US were getting a quick high from inhaling the N2O then returning the cans to the shelf. Manufacturers eventually put shrink wrap on the caps to reveal tampered cans to shoppers.

[@katieewatson8]

Whippets! 😂

[@MrYoname1]

My favorite thing about nitrogen is, that pretty much all explosives we use, have nitro groups in them. And I love explosions and also fireworks.

[@pietrotettamanti7239]

Thank you! I've always wanted to see the reaction between NO and O2. For the petrol/diesel engines, you should have mentioned the catalytic converters. I've always found them really intresting, and I would love a more in-depth explaination of the adsorption mechanisms on platinum and palladium.

[@montikore]

Professor, greetings from America. You've inspired the young scientific boy in me time and time again. You're a treasure to your nation and the world. Thank you for all of the videos and all of the years!!!

[@manuelboucas6951]

These videos are just amazing. And highly addictive. Congratulations!!!

[@PedroDelimaMarcano]

Once again MANY THANKS to the professor, Neal and the team... Best invested 12 minutes of the week.

[@2450logan]

The word you you were looking for when talking about NOx regarding diesel engines is their higher compression ratio thus higher temperatures.

[@ColCurtis]

Plus I believe a large factor in the production of NOx is because a diesel engine normally runs very lean, the cylinder always had an excess of oxygen that doesn't get burnt, and that can combine with nitrogen.

[@joergmaass]

@Curtis You are right, and @logan thompson is only partially right. Diesel engines actually have lower combustion and exhaust temperatures than gasoline engines, but the fact that there is always excess oxygen is the main contributing factor for them to have higher emissions of nitrogen oxides.

[@ph11p3540]

That still leave the diesel engines particulates as part of the exhaust when they start rolling coal.

[@AtlasReburdened]

That's a really long word.

[@noxcraft]

5:12 Those shoes are awesome! Neil style score: 100/10

[@Olimar73]

Fascinating video as always! On a sad point, has anyone else noticed how many funeral cards are collecting on the shelf? :(

[@shawnhuk]

Oliver73 - I do now....

[@nothingisreal6816]

Why did you make me notice that :(

[@Xenotrickster]

The older you get, the more loved ones you will watch die. Maybe immortality isn't so great.

[@csheadtrip]

Yay, updated videos! Amazing production, Brady.

[@tom33453]

I’ve been waiting for this video so long! (Nitrogen is one of my favourite elements)

[@periodicvideos]

Hope you liked it

[@tom33453]

I did! I can’t wait for the next video!

[@alvarofue]

Great episode! Nice that you ended it with the NOx problem on diesel engines... You could also explain how urea cleans these NOx on modern after treatment systems.

[@typrus6377]

Petrol/gasoline engines do make NOx. The lower the compression ratio, the less conversion occurs in general. Diesel engines tend to run higher compression than gasoline/petrol which contributes, as does the general over abundance of air in a diesel engine, to high NOx production. I love the videos- thank you so much to the whole team for doing what you do!

[@dylangrigas4355]

As a learning chemistry student, I love these elements videos, so interesting

[@kamilduda7704]

Published 3 hours ago - 1300 thumbs up! - It simply means You have a quite a big audience. Love Your's videos! Can't wait for more.

[@periodicvideos]

Thanks we can’t wait to make more.

[@djfacts5689]

Thank you sir You helped me to remember most of my inorganic reactions

[@roidroid]

I'd recommend showing the hammer smashing banana bit, to anyone on a dating site that sends you unsolicited fruit pics.

[@StreakyBaconMan]

He should do it again but with an eggplant this time.

[@johnnypopulus5521]

Neil's boots are wicked. The Stig always dominates.

[@speckledjim_]

Another wonderfully informative video by our very own Processor Proton, keep up the sterling work

[@Alex_science]

Professor. Your videos are fantastic. They are very interesting and easy to understand. Congratulations from Brasil!

[@vibraphonics]

This is just a brilliant video. Packed full of interesting information and fascinating experiments and so well shot as well.

[@MrSeon123]

7:15 I think that's a bit wrong? Nitrogen has 7, oxygen has 8. Or 5 and 6 in the outer shell.

[@DarthSagit]

Indeed, oxygen has 6 valence electrons not total electrons. It has 8 electrons in total.

[@czdaniel1]

I can't figure out what logic could possibly result in that statement. I definitely can't figure out how it got past any editor during post-production.

[@pietrotettamanti7239]

Yes, he meant the total electrons for nitrogen and the valence electrons for oxygen. It can get a little confusing sometimes.

[@forgedwithsteel]

he meant Valens electron

[@elifeyluluney7401]

The copper reaction looked so similar to a redox reaction equation i've balanced yesterday. I was wondering why the coefficients of the equation in the video weren't the same as the coefficients I had calculated. I thought maybe I had made a mistake. Then I checked my notes and realized that the reaction on the video weren't the same as the one in my notes. Mine had NO, not NO2. I must have forgotten to write the 2 and balanced a completely made-up equation, I thought. But then the video showed me the exact equation on my notes with all the exact same coefficients as well as explaining how this reaction is different. This sounds so weirdly specific and confusing but I had to share it because this tiny thing had my mind blown. science, dude

[@julietaorliacq3295]

The gas changing colour inside the inverted tube was such a beautiful magic...

[@ZaneZephyr]

That man just made a mana potion!

[@dogerriders868]

Always good to see a new video, they are few and far between these days.

[@andrestrujado]

Really informative and packed with experiments!!! Excellent video!!!It would have been interesting to show that nitrous oxide is the only other gas besides oxygen that relights a glowing splint. One of the reasons it's used as a liquid oxidiser in racing cars (Drag racing)

[@cappilau7448]

7:21 Just to remind that nitrogen has a total of 7 electrons, but has 5 at the outermost shell; oxygen has a total of 8 electrons and 6 at the outermost shell. The professor had a mistake saying that nitrogen has 7 electrons and oxygen has 6, but didn’t note that the conditions are different!

[@dubbleyou248]

What I learned today: You can shatter practically any object no matter how flexible it is by first putting it in liquid nitrogen

[@peanuts2105]

It's always the tie. Love it

[@Ian_Durr]

One of the best channels!! Thank you so much!

[@DrRich-mw4hu]

Awesome as always! Thank you Professor 🤔

[@brucewinningham4959]

The Professor is 'THE MAN."

[@elnombre91]

You can also very easily generate NO2 by the reaction of concentrated nitric acid with ethanol. I once made the mistake of rinsing through a frit with ethanol then nitric acid, and learned my lesson quite quickly.

[@TheElectra5000]

Have you guys ever made a video on glass? Something so fragile, yet so resistant; the main material in any chemical lab. I would love to know a little bit more about it.

[@marshallemmett3313]

This is probably the most interesting video y'all've put out!

[@periodicvideos]

Thanks. Hope you shared it with some friends. :)

[@matt4176]

Thumbs up to everyone watching this video. y’all could be watching k pop or cat videos, but y’all sticking to science and educational videos. Y’all are the real ones!

[@zeromailss]

5:40 that is a very cute action figure you got there, where can I buy one?

[@Emil-cj6ey]

Thats just a playmobil figure.

[@illuminati.official]

I have to say, I know about fume hoods of course, but seeing it at work at 5:10 is really impressive.

[@Oddman1980]

Another excellent video! One thing to point out however, petrol/gasoline engines DO make NOx - it's just easier on petrol engines to make them emit less NOx, using either EGR (Exhaust Gas Recirculation) or adjusting cam timing to keep combustion temperatures down. Diesel engines can't really operate without those high temperatures however, so to deal with the NOx we are saddled with DEF (diesel exhaust fluid) systems in the US, which makes diesel engines, normally dependable, into cantankerous beasts with fierce maintenance requirements.

[@bibasik7]

I make bad science puns, but only periodically.

[@jdanielcramer]

🤣

[@WAMTAT]

So cool for something we breath everyday.

[@xevlonperc]

alexander williams I'm not sure...

[@MrPDawes]

Including the NOx

[@justimagine2403]

How does this guy look ageless! I think I have aged 11 years since I started watching these. P.S. I love them! Also, it "sublimates" the water directly from a gas to a solid (skipping the water phase).

[@vtron9832]

I love your chemistry video, they are fun and curious

[@MrWombatty]

Relatively obscure is the fact that NO emission regulations were partly responsible for killing off the idea of turbines in cars! Chrysler had begun doing R&D on turbine engines for military aircraft & vehicles before the start of WWII because of the advantages of their simplicity & reliability, & were developing gas-turbine engines for cars right till the end of the '70s. Despite even producing a limited trial production of 50 (plus 5 prototypes) of their Chrysler Turbine Car, eventually the R&D on turbine engines was abandoned as they struggled to achieve acceptable fuel economy. However, another reason was that as the exhaust gases reached higher temps (another problem in itself), there were significantly less unburnt hydrocarbons & pollutants, meaning NO levels were comparatively higher as a percentage of total pollutants, & consequently the failure to meet EPA regulations!

[@gresmaster2279]

These guys look like they have been best buds for the last 30 years lol

[@morgansmith6330]

Love the videos... is anyone else curious about that hitman Neil

[@Tindometari]

They call him "Neil" because his real name is Igor. :)

[@chunyingzhang6252]

Hello! I'm Chunying's child and I love your videos.I also subscribed to your channel.

[@deepfriedsalt567]

At the risk of revealing too much about myself, my favourite application for nitrogen is synthesising azidoazide azide. This compound is so unstable, it is actually beyond our capabilities of measurement. If you want to know more about it, I recommend SciShow's video on the 5 most dangerous chemicals.

[@Tindometari]

I read Derek's piece on this. Apparently you have to keep it in an autoclave for a week at a time, take it out to do something with it -- very, very carefully -- and put it back in for another week. Rinse and repeat for months. And then, when it's time to characterise your sample, as like as not you'll blow up three rotavaps before you can even get a sample as far as the spectrometer, and probably blow that up as well. There's crazy ... and then there's Klapötke crazy. (Though honestly, if I had my life to live over again, I'd go into chemistry and sign on with his group. You couldn't call it a boring life, really.)

[@GiddeonFox]

What are the crystals forming on the top of the bottle of nitric acid that you can see at 9:00 ?

[@robinswamidasan]

Anhydrous nitric acid freezes at −42 °C to form white crystals. If you notice, the bottle has a thin layer of frozen water vapour around it (look at the label in particular). The acid is probably stored at low temperatures for safety and stability -- It slowly decomposes to NO2 and water at room temperature. So that's probably residual acid, from previous pourings, that's frozen into crystals.

[@dubsar]

7:50 Is it NO2 that gives the colour we see behind a SpaceX rocket when looking down to its trail?

[@yarraktare]

Poliakoff for president of the world!

[@wedfrest]

Nice to see Neil is going through his industrial goth phase.

[@ramanboucher]

I

[@mike0rr]

I like the little screw or nail under the car at 12:20. Reminds me of my driveway... Lol

[@gnomechild3695]

What is the name of a song that starts at 9:10?

[@JanicekTrnecka]

Dear Periodic Videos team, thank you very much for every video released...

[@periodicvideos]

You’re welcome.

[@drtidrow]

12:15 Diesels produce nitrogen oxides because at part-throttle they run very lean, so there's plenty of oxygen that doesn't get used up in burning the fuel. In the higher pressures of a diesel engine nitrogen oxides are likely to form when the fuel is injected in the combustion chamber, as that's when the temperature and pressure are highest. Diesels are more efficient mostly due to the compression/expansion ratio being quite a bit higher than in gasoline engines - the higher the expansion ratio the higher the efficiency.

[@joshuarosen6242]

Top notch stuff as always. Keep 'em coming.

[@periodicvideos]

We’ll try.

[@RaExpIn]

Nice video! Some time ago I made a video some time ago about magnesium and nitrogen reacting to form magnesium nitride. :)

[@billybbob18]

I use nitrogen when testing for leaks in refrigeration equipment. It has a low expansion coefficient allowing me to check my pressure regardless of the surrounding temperature.

[@wscamel226]

Awesome videos!

[@Muonium1]

The fog produced by LN2 in air is not "actually tiny particles of ice", it's fog - liquid water droplets in air due to the lowered dew point. It may be frozen directly at the surface of the LN2 but as soon as it starts mixing with surrounding air it turns to liquid instantly because of its minuscule thermal mass. Also note at 3:00 an interesting phenomenon which is not discussed - the flowing liquid N does not appear cold at all, in fact it looks the same temperature as the rest of the room because it's transparent to longwave infrared radiationl the diatomic N molecules have no dipole moment and so are unaffected by varying electric/magnetic fields of light waves.

[@malcolmabram2957]

2:09. I once froze an orange in liquid nitrogen. Then allowed it to thaw. It was delicious. You should try it. All you need is a bit of liquid nitrogen.

[@wendycornscorner1110]

This is a science treasure of all the world!

[@JP_Stone]

Love Nitrogen. Its such a cool elements but can also be explosive and hot as hell. Would love to see some Azidoazide Azide (C2N14) if that would even be possible to demonstrate. As always Cheers and thanks for the video.

[@WingDiamond]

Sci-Show did a show on that, that's the chemical that blows up even if you talk junk about it in the other room! 😡🤬😅😂

[@vincentpelletier57]

3:05 Oh no! The professor said "degrees Kelvin"! Even the greatest minds can have a slip of the tongue now and then. He must be human after all... :-)

[@StonyRC]

Neil is clearly a very serious guy - never appears to smile. I guess he's too busy making sure the Professor doesn't hurt himself!

[@JimmyMatis-h9y]

6:50 not to be pedantic but there _must_ be nitrous oxide in the cream, by definition (of a foam, a colloidal suspension of a gas in a liquid). the nitrous isn't being replaced by ambient air so the foam is nothing *but* liquid (cream) & gas (nitrous).

[@Squieon]

What is the coldest flame you can make?

[@jhyland87]

3:40 2NaN3 => 2Na + 3N2. Is that right? Seems like the 3N2 may be wrong.

[@exhaustus7437]

Sadly how you say diesel vehicles are more efficient they put out more particulate black carbon ("rolling coal") which has been linked so some drastic radiative forcing.

[@nano7586]

If I only had watched these videos back in my first semester...

[@jayscosta8803]

Best professor on universe

[@GimliLordOfGlitteringCaves]

"The liquid creme goes into foam ready to go on your cake" - professor

[@trespire]

We use nitrogen in our industry as a technical assist gas for laser cutting of sheet metal, usually the non ferrous type such as stainless steels & aluminium alloys. Gaseous nitrogen is supplied to our industrial laser machines through clean stainless steel pipes at 30 to 34 bar of pressure. The required purity is 99.995%, or specified as nomenclature "4.5" (representing the 4 nines & a five). It costs 3.5 Israeli shekel or less than one Euro per cubed meter of N2 at 99.995% purity. The laser cutting machine blows the nitrogen through the kurf created by melting/vaporizing the sheet metal with the focused multi kilowatt laser beam, this blows away the molten/vaporized metal as the laser cutting head moves across the sheet metal leaving behind a perfectly clean & non oxidized cut.Nitrogen is used in massive quantities every day in manufacturing industry. Practical industrial application of science.

[@robinswamidasan]

3.5 Israeli shekel or less than one Euro per cubed meter of N2 -- at 1 bar or 30 bar?