@Futurekamikaze123 Different materials boil at different temperatures. The main reason has to do with the forces between the substance's particles. If the forces are low, it boils at a low temperature. If the forces are high, it boils at a high temperature.
What exact field of science does this get ino? Physics? I've always loved science, and a career in this field would be amazing. Especially when little kids see it all happen, and their faces light up with excitement.
@Dmon2793 You can make an argument for physics. You can make an argument for chemistry, sort of. Since we're a physics lab, I came down on the side of physics.
@ChimeraHatake It depends on how much gets poured on your hand and how you're holding your hand. At best, nothing happens. Make one mistake and push things too far and you begin freezing flesh.
whats with all the stupid Questions about drinking it .. throwing it at people Or Swimming in it .. your allowed to be Curious .. but Just asking stupid Questions for the laughs comeon
How comes you don't care if liquid nitrogen spills out of the container onto the table? Does it boil immediately to nitrogen gas due to the table's heat?
Don't grab dry ice... even if you're like "Oh I'll just bounce it around a lot"... your hands will chill down and you will see frostbite almost stay on your finger. It looked like snow went into my finger.
@USBpowerify Assuming that you have the training and equipment to safely store, transport and use liquid nitrogen, try contacting a local welding supply shop.
Is liquid nitrogen toxic in the way that if you touched it would it would hurt you? I know that it would freeze your hand, but will it have any other reaction?
@planecommander1 You really can't heat up liquid nitrogen past its boiling point without increasing the pressure on it. Just like water, nitrogen boils at a specific temperature at a specific pressure. If we were to dump liquid nitrogen onto a hot frying pan, it would boil very quickly, just like it did when the dry ice was put into it. More energy = faster boiling.
If you stuck ur hand in liquid nitrogen and pulled it out immediately would you get hurt or would the Leiden-frost effect take place and protect your hand.
@gummel82 That's really not going to matter much if you keep your hand in liquid nitrogen beyond the time where the Leidenfrost effect is protecting you.
@JeffersonLab well i can't speak of my own experience, but i read it on wikipedia (i know, i know... :) and actually held it for quite possible. Would be a nice experiment, wouldn't it be?
@MrDman595959 But, how fast is really fast? Unfortunately, if your definition of 'really fast' isn't as fast as liquid nitrogen's definition of 'really fast,' bad things happen.
@MissCourtneyyChaos If you just brushed up against it briefly, no. If you stayed in contact with it, it would eventually freeze the parts of you that were in contact with it.
@MissCourtneyyChaos well if you hold dry ice with your bare hands you will burn yourself really fast trust me its not fun. and basicly dry ice is carbon dioxide in a solid form
I have been watching a few of your videos and I really like them... But I just got a question since you were pouring the liquid nitrogen so "carelessly"... What happens if someone spilled liqud nitrogen on the ground and then you'd touch the puddle barehanded before it's turned to gas? Would it still be cold enough to freeze the blood and the water in the body, or would nothing happen?
@KiyomaruMoonstorm If you managed to put your unprotected hand in the spilt liquid nitrogen, it would be possible to injure yourself. You'd have to be quick about it as well as determined to do it, though. Nothing's preventing you from sticking your unprotected hand in the Dewar, either. If someone is determined to hurt themselves with the nitrogen, there are quite a number of ways to do it.
@touche444 I think that the companies that produce liquid nitrogen use a compression-heat exchange-expansion cycle. For us, liquid nitrogen costs about $1 a gallon.
Quick question, where do you buy all of your Liquid Nitrogen? I'm looking for some to experiment with (along with parental supervision and all) and I know all the safety precautions.
@NiggleTutorials We contract with a supplier. The supplier varies from company to company, depending on who gives the lowest bid at the time. I believe our current supplier is a company called Air Liquide.
@NiggleTutorials Doubtful they would supply you. They are an industrial supplier. Dealing a liter here and a liter there isn't profitable for them. You'd probably have to find a welding supply shop. We pay about $1 a gallon, but we buy ~6,000 gallons a day. I wouldn't be surprised if a local shop charged you $10 - $20 a gallon.
1. Why did you pour so much Liquid nitrogen. I noticed how much you overflowed it and am just curious as to why you didn't stop filling it when the beaker reached capacity.
2. Does liquid nitrogen put of nitrogen gas or co2?
@sgfreak96 There's no real harm in spilling a little nitrogen onto the table, and it looks neat, so why not spill a little?
Liquid nitrogen is nitrogen. Changing phase doesn't change what makes it up. When liquid nitrogen boils, it makes nitrogen gas, just like when liquid water boils, it makes water gas.
@JeffersonLab I appreciate the response and actually, after I commented asking what gas liquid nitrogen puts off I realized what a foolish question that was. And yes liquid nitrogen definetly has a cool effect when it's poured on to a table!
@JeffersonLab Water is the strangest mixture in the natural world. It gets more dense the warmer it is. Fog (if possible to survive under water) would sink. :3
@Undeadflayme The thread is a little convoluted, but the OP stated "Kinda obvious how a solid more dense than a liquid." I was applying their logic to water.
@Andythrax If there were a marginal chance that we would get hurt, we wouldn't do it. You have to realize, this isn't our first rodeo. We know what liquid nitrogen is capable of and have prepared ourselves (gloves, goggles, long pants, using small amounts of nitrogen, etc...) in the event something unexpected happens. If you want to see the safety gear in action in an unexpected event, see the first clip in our 'When Liquid Nitrogen Attacks! - Season 2 Bloopers' video.
@JeffersonLab No I don't mean from a safety perspective. It's wasteful, you lose the Liquid Nitrogen and can't use it any more until you re-cool another load, wasting energy and time. A little more care and this wouldn't have been an issue.
@Andythrax Well, it wasn't an issue to begin with... Once we withdraw the nitrogen from the storage tank, it's as good as spilt. We can't put it back in the storage tank. There's no reason not to spill it.
The Dewar Joanna's using holds 5 liters of nitrogen. That amount of nitrogen is worth about $1. We aren't talking huge financial losses here. In fact, the dry ice cost 10 times that amount.
@JeffersonLab You could use that for more experiments and only having to cool and use energy on making half as much and that would be saving a the planet just a little bit more than you are right now.
@BINGFRYSRDUN While nitrogen might be atomically denser, since the CO2 is in a solid state it is ultimately denser still. Water is an anomaly in that solid water, or ice, is less dense than liquid water.
hehehehe it did exacty what I thought it would do....just boil away some of the liquid N2. After hearing "so you get colder dry ice and..." for a SECOND there, I thought you were going to say "warmer liquid nitrogen"... I was prepared to deliver a semon!! Ohh btw, I LOVE the girl's smile! hilarious!! :)
I remember holding dry ice not knowing it was dry ice for about 15 seconds... I didn't know what that was. Then It felt really cool but somehow felt like a burning sensation.... o_O
@badboytommy2001 Probably because they thought something was going to happen (explosion, fire, etc...) that didn't and, since they were wrong, it was the video's fault.
@4everGaga1 No, dry ice is carbon dioxide. 'Boiling' is the temperature a liquid changes to a gas. It doesn't mean hot. It doesn't mean cold. For water, yes, it's a pretty hot temperature, at least for people. But, different things boil at different temperatures. Nitrogen happens to boil at a low temperature. Iron happens to boil at a high temperature. It's all relative.
What happens if you put a piece of paper in liquid nitrogen? Would it shrivel up like when you put it in water or will it turn to a frozen piece of paper.
@shadowkeeper55 You get cold paper that develops 'cracks' if you fold it. If you get the paper wet and -then- get it cold, you can crush it like a dry leaf.
@SynthHappens Why would you want to add something to liquid nitrogen to make it colder? If you had something colder, why not just use that by itself? Why bother mixing it with liquid nitrogen?
because the only thing I know that is colder than ln2 is He3 and he3 is very expensive. so I want to know what is the economical way to get a happy medium. btw. You need to start using thermal probes in these experiments. get a fluke 52 II or something and start posting actual temp readings. I like the vids but you need to post the temps. I watched the ln2 vacuum vid. how cold did you get the ln2 in that vid?
@SynthHappens Liquid neon is your cheapest alternative, and it isn't that cheap. He-4 would also be cheaper than He-3 but, again, that's relative. Keep in mind that this isn't like mixing hot and cold water and ending up with warm water. Cryogenic liquids are at their boiling point. Mix liquid neon with liquid nitrogen and the neon boils off as the nitrogen gets colder. The liquid range of nitrogen isn't that great so, while you could get colder liquid nitrogen (cont)
@SynthHappens (cont) you probably end up with frozen nitrogen. Or, bits of frozen nitrogen in a bath of liquid neon that's still at liquid neon's boiling point.
The only experiment so far where a probe would be useful is the one with the nitrogen in a vacuum chamber. Everything else has had nitrogen at it's boiling point and we don't need a probe to tell what the temperature is. Don't know how cold it got in the vacuum experiment. No lower than 63 K since it was a liquid at standard pressure.
@thaisonnguyen81 Yes, it's possible. It depends on what's known as the Leidenfrost effect. The liquid rapidly boils and forms a thin layer of gas between the liquid and the hand. The gas layer helps to insulate the hand from the liquid. It doesn't last very long, though, so it's a relatively dangerous demonstration to do. Stay in too long and frostbite is the best you can hope for.
not saying that it is possible but if i were to get liquid nitrogen (in a cup) and place it in an area that has the same temperature as the liquid nitrogen, would there be any change?
@bulldriver1 If you could insulate the nitrogen from the rest of the environment, it's rate of boiling would be much slower. That's actually the point of the containers we carry the nitrogen around in. They slow the flow of heat into the nitrogen so that it remains as a liquid for useful amounts of time.
@imcrazy123456789 For the most part, yes. The amount of nitrogen that's being spilt is relatively small and the floor is carpeted, so what is spilt is fairly well contained. The floor just shrugs it off.
@monkeyman12322 It's the liquid form of the element nitrogen. Nitrogen gas makes up about 78% of the air. Cool it down enough and the nitrogen can be changed from a gas into a liquid. Liquid nitrogen is just nitrogen that's cold enough to be in its liquid phase.
Lol since Dry Ice is the Gas Form of Liquid Nitrogen, so that means you guys mixed Liquid Nitrogen, basically with more liquid nitrogen, just in different forms.
@OhNoNotMyPenis You don't get frozen instantly. The very first thing that happens is that some of the nitrogen that's in contact with your skin boils and forms a protective layer of gas between you and it. It doesn't last very long, though. Damage doesn't happen instantly, but it's pretty quick. Within seconds. The sink that gets frozen is effectively dead. The ramifications depend on how much gets frozen.
I came across a video soon after i posted my comment where a guy actualy put his hand into liquid nitrogen and what you said happend. he explained the effect in detail but i forgot the term but its kinda the same as when water lands on a hotplate it forms a layer of steam under it and thats why it beads up and doesnt instaly evapourate.
@OhNoNotMyPenis it would freeze arround after 2 seconds , actually you should have the time to drop in LN2 your hand and take it off without have any damage (exept extreme cold on the hand^^) but if you touch the container well it's really really bad.
@YOUNGGUNNO Take a beep breath. 78% of the air you just inhaled is nitrogen gas. If you take nitrogen gas and cool it down enough, it changes from the gaseous state to the liquid state. That's what liquid nitrogen is. It's nitrogen that's cold enough to be a liquid rather than a gas.
You can actually buy liquid nitrogen fairly easily, depending on the laws in your area. It's not very dangerous. I needed some a few years ago and I just needed to fill out one form with the company. I didn't need governmentpermits or anything.
@Jojoateyt Just remember that, while you can legally buy it, that doesn't mean that it isn't dangerous. It's easy to buy gasoline but you can hurt yourself if you misuse it. Same thing with liquid nitrogen. There's the obvious freezing hazard. You can also asphyxiate yourself if you spill enough of it in a small enough space. And, if you try to keep it in a sealed container, bad things happen. Be aware of the hazards before you try getting liquid nitrogen.
I didn't mean to minimize the risks. It's always a good idea to be careful, of course. When I said it's not dangerous, I meant it's not a weapon. It's not dangerous in the same way an explosive is, for example.
@JimmyV2009 You'd have to pressurize the room to 5.1 atmospheres first, otherwise it just goes right to gaseous. Even then, it's only liquid at -56°C, which would kill you instantly.
However, increasing the pressure allows it to stay liquid at higher temperatures, until it is liquid at room temperature at 70 atmospheres. I don't know if a human can survive that pressure, but there might be a sweet pressure/temperature spot where you wouldn't instantly freeze solid or be jellified.
You guys are in love with liquid nitrogen.
mybrotherisanaddict 18 hours ago
@mybrotherisanaddict We have a lot of it. Makes it easy to do stuff with it.
JeffersonLab 18 hours ago
I want to see you try that fossil-hunting hammer on the colder chunk of dry ice.
FlashFizz 3 days ago
why does liquid nitrogen boil if its 321 degrees below 0?
Futurekamikaze123 5 days ago
@Futurekamikaze123 Different materials boil at different temperatures. The main reason has to do with the forces between the substance's particles. If the forces are low, it boils at a low temperature. If the forces are high, it boils at a high temperature.
JeffersonLab 4 days ago
@JeffersonLab What is the freezing point of nitrogen? and have you ever gotten it down tho that temperature?
Tom456pl 15 hours ago
@Tom456pl Nitrogen freezes around 63 K. We actually have frozen it before. See "Let's Freeze Liquid Nitrogen!" for the vid.
JeffersonLab 4 hours ago
I watched this with AC/DC's TNT playing on another tab at the same time
johnjnukemsheridan 6 days ago
lol, I Love You Guys/Gals!!
TruJezter 1 week ago
Cool tabble
apiesta 2 weeks ago
why do they pour sooooo much???
NyGiant123 2 weeks ago
@NyGiant123 It's not that much. You're talking about 10-20 cents worth of nitrogen...
JeffersonLab 2 weeks ago 2
@JeffersonLab I didn't know nitrogen was so cheap. :o
IndieRPGAdventure 5 days ago
You should pour liquid nitrogen on liquid helium or vice versa
Dukey8668 2 weeks ago
What exact field of science does this get ino? Physics? I've always loved science, and a career in this field would be amazing. Especially when little kids see it all happen, and their faces light up with excitement.
Dmon2793 3 weeks ago
@Dmon2793 You can make an argument for physics. You can make an argument for chemistry, sort of. Since we're a physics lab, I came down on the side of physics.
JeffersonLab 3 weeks ago
What would happen if you drank the liquid nitrogen?
runeflame16 3 weeks ago
@runeflame16 Nothing good.
JeffersonLab 3 weeks ago 7
so like, i dont care much for science. but i stumbled on these completely on accident and now im watching a bunch. cool stuff! ^-^
mjisthekopforeverr 3 weeks ago
What happens if you lick dry ice
willbom87 3 weeks ago
What happens if you pour liquid nitrogen on your hand?
ChimeraHatake 3 weeks ago
@ChimeraHatake It depends on how much gets poured on your hand and how you're holding your hand. At best, nothing happens. Make one mistake and push things too far and you begin freezing flesh.
JeffersonLab 3 weeks ago
whats with all the stupid Questions about drinking it .. throwing it at people Or Swimming in it .. your allowed to be Curious .. but Just asking stupid Questions for the laughs comeon
Pallepop909 3 weeks ago
How comes you don't care if liquid nitrogen spills out of the container onto the table? Does it boil immediately to nitrogen gas due to the table's heat?
godfather12m 3 weeks ago
@godfather12m Yes, that's exactly it.
JeffersonLab 3 weeks ago
Can you throw liquid nitrogen at someones face?
crymetymertruth 3 weeks ago
@crymetymertruth You could. The liquid nitrogen won't stop you. That doesn't mean that you should.
JeffersonLab 3 weeks ago
@JeffersonLab Could you get lava and put it into liquid nitrogen?
DrEpicstein 1 week ago
@DrEpicstein We don't have a convenient source of lava.
JeffersonLab 1 week ago
@JeffersonLab Well if u did then it would be fun =D
DrEpicstein 1 week ago
@DrEpicstein And very surprising.
JeffersonLab 1 week ago
thanks for this videos im learning a few things
amodelanime2 3 weeks ago
Don't grab dry ice... even if you're like "Oh I'll just bounce it around a lot"... your hands will chill down and you will see frostbite almost stay on your finger. It looked like snow went into my finger.
scottycatman 3 weeks ago
Mix liquid nitrogen with liquid oxygen. Or liquid oxygen with liquid hydrogen :D!
darkheat246 1 month ago
FAAAAAAAAAAA
awangdcsz 1 month ago
where can I buy liquid N2
USBpowerify 1 month ago
@USBpowerify Assuming that you have the training and equipment to safely store, transport and use liquid nitrogen, try contacting a local welding supply shop.
JeffersonLab 1 month ago
Is liquid nitrogen toxic in the way that if you touched it would it would hurt you? I know that it would freeze your hand, but will it have any other reaction?
EvelinFaust 1 month ago
@EvelinFaust Nitrogen (N2) is essentially chemically inert. It's not toxic.
JeffersonLab 1 month ago
@JeffersonLab I heard the Dry Ice burns though.
iStrikerVX 4 weeks ago
@iStrikerVX It doesn't burn, it freezes. It -feels- like a burn, but it isn't a burn like you would get by touching something hot.
JeffersonLab 4 weeks ago
@JeffersonLab That's what I meant.
iStrikerVX 4 weeks ago
Runs like water you say? How much would you sell them? (If you do)
roadcrosser 1 month ago
@roadcrosser Sorry, we don't.
JeffersonLab 1 month ago
Aaaagh shes to cute Q.Q
BadonkadonkLover 1 month ago
can you try to heat up liquid nitrogen in a frying pan and show us what happends?
planecommander1 1 month ago
@planecommander1 You really can't heat up liquid nitrogen past its boiling point without increasing the pressure on it. Just like water, nitrogen boils at a specific temperature at a specific pressure. If we were to dump liquid nitrogen onto a hot frying pan, it would boil very quickly, just like it did when the dry ice was put into it. More energy = faster boiling.
JeffersonLab 1 month ago
with my fossil hunting hammer???!!?!!??
MrBubbaloo 1 month ago
put a battery in liquid nitrogen and see if it will still work
fixzy115 1 month ago
Colder dry ice? Mother of god.
ilikepienotu 1 month ago
I'M SOOOO OUT OF IT!!!!!!!!! I thought dry ice and Liquid Nitrogen were the same thing!!! I was never a scientist... :(
jleigh20001 1 month ago
If you stuck ur hand in liquid nitrogen and pulled it out immediately would you get hurt or would the Leiden-frost effect take place and protect your hand.
CHRISmartialARTIST 1 month ago
@CHRISmartialARTIST Yes, the Leidenfrost will protect you for a short time, but mistakes in timing are unforgiving.
JeffersonLab 1 month ago
@JeffersonLab you must take off any temprature conducting things of your hand, such as metal rings and so to prevend freezing and frostburn
gummel82 1 month ago
@gummel82 That's really not going to matter much if you keep your hand in liquid nitrogen beyond the time where the Leidenfrost effect is protecting you.
JeffersonLab 1 month ago
@JeffersonLab well i can't speak of my own experience, but i read it on wikipedia (i know, i know... :) and actually held it for quite possible. Would be a nice experiment, wouldn't it be?
gummel82 1 month ago
If liqiud nitrogen is colder the dry ice why is it more dangerous to put your hand on dry ice then puting your hand in liquid nitrogen
BIBIisBOREDXD 1 month ago in playlist Frostbite Theater
@BIBIisBOREDXD Who said that it was more dangerous to put your hand on dry ice than it is to put your hand in liquid nitrogen?
JeffersonLab 1 month ago
@JeffersonLab i heard if u were to put your hands in liquid nitrogen really fast nothing bad would happen
MrDman595959 1 month ago
@MrDman595959 But, how fast is really fast? Unfortunately, if your definition of 'really fast' isn't as fast as liquid nitrogen's definition of 'really fast,' bad things happen.
JeffersonLab 1 month ago
if you put dry ice and coke together... it will do the same thing as mentos and diet coke
b20002003 1 month ago
@JeffersonLab U guys r awesome i subscibed :D
BurningGodzilla1000 1 month ago
how can you get all the liquid!!!!!!!!!!
halohooker132 1 month ago
Would you hurt yourself if you accidently touched dry ice? What does dry ice consist of, anyway?
MissCourtneyyChaos 1 month ago
@MissCourtneyyChaos If you just brushed up against it briefly, no. If you stayed in contact with it, it would eventually freeze the parts of you that were in contact with it.
Dry ice is frozen carbon dioxide (CO2).
JeffersonLab 1 month ago
@MissCourtneyyChaos well if you hold dry ice with your bare hands you will burn yourself really fast trust me its not fun. and basicly dry ice is carbon dioxide in a solid form
grillbar4 1 month ago
I have been watching a few of your videos and I really like them... But I just got a question since you were pouring the liquid nitrogen so "carelessly"... What happens if someone spilled liqud nitrogen on the ground and then you'd touch the puddle barehanded before it's turned to gas? Would it still be cold enough to freeze the blood and the water in the body, or would nothing happen?
KiyomaruMoonstorm 1 month ago in playlist Liquid Nitrogen Experiments
@KiyomaruMoonstorm If you managed to put your unprotected hand in the spilt liquid nitrogen, it would be possible to injure yourself. You'd have to be quick about it as well as determined to do it, though. Nothing's preventing you from sticking your unprotected hand in the Dewar, either. If someone is determined to hurt themselves with the nitrogen, there are quite a number of ways to do it.
JeffersonLab 1 month ago
how do they produce liquid nitrogen and how much does it cost?
touche444 1 month ago
@touche444 I think that the companies that produce liquid nitrogen use a compression-heat exchange-expansion cycle. For us, liquid nitrogen costs about $1 a gallon.
JeffersonLab 1 month ago
Where do you guys get all this liquid nitrogen!? ლ(ಠ益ಠლ) I WANT SOME
cheezmasterz1103 1 month ago
i wonder if it would be possible to make a freeze gun using liquid nitrogen in a sort of special "super soaker (water gun)" device.
MsQword 1 month ago
Why does it boil??
armandpagano9779 1 month ago
@armandpagano9779 Different things boil at different temperatures. Nitrogen happens to boil at 77 K.
JeffersonLab 1 month ago
@JeffersonLab Oh well thats cool and one more question where are you guys at? :p
armandpagano9779 1 month ago
@armandpagano9779 Newport News, Virginia.
JeffersonLab 1 month ago
Quick question, where do you buy all of your Liquid Nitrogen? I'm looking for some to experiment with (along with parental supervision and all) and I know all the safety precautions.
NiggleTutorials 1 month ago
@NiggleTutorials We contract with a supplier. The supplier varies from company to company, depending on who gives the lowest bid at the time. I believe our current supplier is a company called Air Liquide.
JeffersonLab 1 month ago
@JeffersonLab Will they supply me? or Do I need to be someone like a college.. and do I have to buy in large quantities/is it expensive?
NiggleTutorials 1 month ago
@NiggleTutorials Doubtful they would supply you. They are an industrial supplier. Dealing a liter here and a liter there isn't profitable for them. You'd probably have to find a welding supply shop. We pay about $1 a gallon, but we buy ~6,000 gallons a day. I wouldn't be surprised if a local shop charged you $10 - $20 a gallon.
JeffersonLab 1 month ago
Questions:
1. Why did you pour so much Liquid nitrogen. I noticed how much you overflowed it and am just curious as to why you didn't stop filling it when the beaker reached capacity.
2. Does liquid nitrogen put of nitrogen gas or co2?
Please respond! Thanks!
sgfreak96 1 month ago
@sgfreak96 There's no real harm in spilling a little nitrogen onto the table, and it looks neat, so why not spill a little?
Liquid nitrogen is nitrogen. Changing phase doesn't change what makes it up. When liquid nitrogen boils, it makes nitrogen gas, just like when liquid water boils, it makes water gas.
JeffersonLab 1 month ago
@JeffersonLab I appreciate the response and actually, after I commented asking what gas liquid nitrogen puts off I realized what a foolish question that was. And yes liquid nitrogen definetly has a cool effect when it's poured on to a table!
sgfreak96 1 month ago
That's really cool!!!
ReptigloRand 1 month ago
Thanks that was fun.
imway2muchfun4u 1 month ago
It seems like the liquid nitrogen was at least 20 % cooler.
stigomaster 2 months ago
Joanna You always look different! Anyway this just shows _cool_ (Hehe) liquid nitrogen is!
Tarz00081 2 months ago
Kinda obvious how a solid more dense than a liquid
SerpentzWrath 2 months ago
@SerpentzWrath Yes, it's completely obvious. Just like why ice cubes sink in liquid water.
JeffersonLab 2 months ago 14
@JeffersonLab Water is the strangest mixture in the natural world. It gets more dense the warmer it is. Fog (if possible to survive under water) would sink. :3
acephantom903 2 months ago
@acephantom903 Water's maximum density occurs at 3.98 ˚C. Once above that temperature, water becomes less dense, not more.
JeffersonLab 2 months ago 5
@JeffersonLab Huh? Isn't ice cubes less dense than water, and therefore sinks in water?
Nomoreidsleft 1 month ago
@Nomoreidsleft I was replying to SerpentzWrath's snarky comment that solids are more dense than liquids by applying the same logic to water.
JeffersonLab 1 month ago
@JeffersonLab dont ice cubes float in pure water? cuz when water freezes it becomes less dense
Undeadflayme 1 month ago
@Undeadflayme The thread is a little convoluted, but the OP stated "Kinda obvious how a solid more dense than a liquid." I was applying their logic to water.
JeffersonLab 1 month ago
why are you so blasé about spilling freeze juice
420Harlequin 2 months ago
@420Harlequin Because we know how to spill it without getting hurt.
JeffersonLab 2 months ago 2
@JeffersonLab that doesn't mean you should do it!
Andythrax 2 months ago
@Andythrax If there were a marginal chance that we would get hurt, we wouldn't do it. You have to realize, this isn't our first rodeo. We know what liquid nitrogen is capable of and have prepared ourselves (gloves, goggles, long pants, using small amounts of nitrogen, etc...) in the event something unexpected happens. If you want to see the safety gear in action in an unexpected event, see the first clip in our 'When Liquid Nitrogen Attacks! - Season 2 Bloopers' video.
JeffersonLab 2 months ago
@JeffersonLab No I don't mean from a safety perspective. It's wasteful, you lose the Liquid Nitrogen and can't use it any more until you re-cool another load, wasting energy and time. A little more care and this wouldn't have been an issue.
Andythrax 2 months ago
@Andythrax Well, it wasn't an issue to begin with... Once we withdraw the nitrogen from the storage tank, it's as good as spilt. We can't put it back in the storage tank. There's no reason not to spill it.
The Dewar Joanna's using holds 5 liters of nitrogen. That amount of nitrogen is worth about $1. We aren't talking huge financial losses here. In fact, the dry ice cost 10 times that amount.
JeffersonLab 2 months ago
@JeffersonLab You could use that for more experiments and only having to cool and use energy on making half as much and that would be saving a the planet just a little bit more than you are right now.
Andythrax 2 months ago
"well the dry ce sank to the bottom because its denser"
lets see: a block of dry ice, or a glass of liquid nitrogen. liquid nitrogen, obviously denser
BINGFRYSRDUN 2 months ago
@BINGFRYSRDUN While nitrogen might be atomically denser, since the CO2 is in a solid state it is ultimately denser still. Water is an anomaly in that solid water, or ice, is less dense than liquid water.
whistleforthebigcash 2 months ago
hehehehe it did exacty what I thought it would do....just boil away some of the liquid N2. After hearing "so you get colder dry ice and..." for a SECOND there, I thought you were going to say "warmer liquid nitrogen"... I was prepared to deliver a semon!! Ohh btw, I LOVE the girl's smile! hilarious!! :)
pauls0416 2 months ago
i think u spilled a little bit "just a little bit" XD
mike889b 2 months ago
WISH YOU CAN HELP ME WITH EVERYTHING RELATED TO SCIENCE!
mastaslayin 2 months ago
I remember holding dry ice not knowing it was dry ice for about 15 seconds... I didn't know what that was. Then It felt really cool but somehow felt like a burning sensation.... o_O
CB24Production 2 months ago
how cold 64 people hate this
badboytommy2001 2 months ago
@badboytommy2001 Probably because they thought something was going to happen (explosion, fire, etc...) that didn't and, since they were wrong, it was the video's fault.
JeffersonLab 2 months ago 7
@badboytommy2001 i see what you did there...SMART!
munky40903805 2 months ago
when pieces of ice where flying of every time he hit it with the hammer, i thought a piece of ice was going to go into his eye.... :/
kelleywazhere 2 months ago
@kelleywazhere That's why one wears goggles whilst pounding a slab of dry ice with a hammer.
JeffersonLab 2 months ago 5
@JeffersonLab thats exactly why. thank you for the genuis who invented goggles! :) lol
kelleywazhere 2 months ago
is dry ice nitrogen too? and if things boil if they're real hot, they also boil when they're real cold?
4everGaga1 2 months ago
@4everGaga1 No, dry ice is carbon dioxide. 'Boiling' is the temperature a liquid changes to a gas. It doesn't mean hot. It doesn't mean cold. For water, yes, it's a pretty hot temperature, at least for people. But, different things boil at different temperatures. Nitrogen happens to boil at a low temperature. Iron happens to boil at a high temperature. It's all relative.
JeffersonLab 2 months ago
What happens if you put a piece of paper in liquid nitrogen? Would it shrivel up like when you put it in water or will it turn to a frozen piece of paper.
shadowkeeper55 2 months ago
@shadowkeeper55 You get cold paper that develops 'cracks' if you fold it. If you get the paper wet and -then- get it cold, you can crush it like a dry leaf.
JeffersonLab 2 months ago
@JeffersonLab cool!
shadowkeeper55 2 months ago
what can you safely add to Ln2 to make it colder? He3 is very expensive.
SynthHappens 3 months ago
@SynthHappens Why would you want to add something to liquid nitrogen to make it colder? If you had something colder, why not just use that by itself? Why bother mixing it with liquid nitrogen?
JeffersonLab 3 months ago
@JeffersonLab
because the only thing I know that is colder than ln2 is He3 and he3 is very expensive. so I want to know what is the economical way to get a happy medium. btw. You need to start using thermal probes in these experiments. get a fluke 52 II or something and start posting actual temp readings. I like the vids but you need to post the temps. I watched the ln2 vacuum vid. how cold did you get the ln2 in that vid?
SynthHappens 3 months ago
@SynthHappens Liquid neon is your cheapest alternative, and it isn't that cheap. He-4 would also be cheaper than He-3 but, again, that's relative. Keep in mind that this isn't like mixing hot and cold water and ending up with warm water. Cryogenic liquids are at their boiling point. Mix liquid neon with liquid nitrogen and the neon boils off as the nitrogen gets colder. The liquid range of nitrogen isn't that great so, while you could get colder liquid nitrogen (cont)
JeffersonLab 3 months ago
@SynthHappens (cont) you probably end up with frozen nitrogen. Or, bits of frozen nitrogen in a bath of liquid neon that's still at liquid neon's boiling point.
The only experiment so far where a probe would be useful is the one with the nitrogen in a vacuum chamber. Everything else has had nitrogen at it's boiling point and we don't need a probe to tell what the temperature is. Don't know how cold it got in the vacuum experiment. No lower than 63 K since it was a liquid at standard pressure.
JeffersonLab 3 months ago
i saw on youtube a guy dump his hand into liquid nitrogen and survive, is it possible?
thaisonnguyen81 3 months ago
@thaisonnguyen81 Yes, it's possible. It depends on what's known as the Leidenfrost effect. The liquid rapidly boils and forms a thin layer of gas between the liquid and the hand. The gas layer helps to insulate the hand from the liquid. It doesn't last very long, though, so it's a relatively dangerous demonstration to do. Stay in too long and frostbite is the best you can hope for.
JeffersonLab 3 months ago
not saying that it is possible but if i were to get liquid nitrogen (in a cup) and place it in an area that has the same temperature as the liquid nitrogen, would there be any change?
bulldriver1 3 months ago
@bulldriver1 If you could insulate the nitrogen from the rest of the environment, it's rate of boiling would be much slower. That's actually the point of the containers we carry the nitrogen around in. They slow the flow of heat into the nitrogen so that it remains as a liquid for useful amounts of time.
JeffersonLab 3 months ago
how come you guys dont care about spilling the LN ? does it evaporate before it can do anything?
imcrazy123456789 3 months ago
@imcrazy123456789 For the most part, yes. The amount of nitrogen that's being spilt is relatively small and the floor is carpeted, so what is spilt is fairly well contained. The floor just shrugs it off.
JeffersonLab 3 months ago
lol subtitles for sound effects BANG ABNG BANG
theGOODsh1t 3 months ago
What exactly is Liquid Nitrogen?
monkeyman12322 3 months ago
@monkeyman12322 It's the liquid form of the element nitrogen. Nitrogen gas makes up about 78% of the air. Cool it down enough and the nitrogen can be changed from a gas into a liquid. Liquid nitrogen is just nitrogen that's cold enough to be in its liquid phase.
JeffersonLab 3 months ago 2
Put dry ice into liquid nitrogen, then put the cocktail into a vacuum chamber!
I want to know just how cold dry ice can get!
TheRedneckAtheist 3 months ago
It's interesting that the liquid nitrogen calms down in the glass so much, once the glass cools. :o)
VulpesFidelis 3 months ago
doing science in what seems a computer lab...
Tom884201 3 months ago
@Tom884201 It's actually the classroom we use in our student program. Gotta film somewhere...
JeffersonLab 3 months ago
@JeffersonLab ah ok ..anyway, nice video :)
Tom884201 3 months ago
Lol since Dry Ice is the Gas Form of Liquid Nitrogen, so that means you guys mixed Liquid Nitrogen, basically with more liquid nitrogen, just in different forms.
jordz0005 3 months ago
@jordz0005 Errrr.... Dry ice is the solid form of carbon dioxide. The gas from of liquid nitrogen is... nitrogen gas.
CO2 != N2
JeffersonLab 3 months ago 16
@JeffersonLab My doctor's been lieing to me this whole time!
jordz0005 3 months ago
@JeffersonLab What would happen if you put liquid nitrogen in vinegar then put baking soda in the mixture?
darkskorpion27 2 months ago
@darkskorpion27 You'll get a frozen mix of... something.
JeffersonLab 2 months ago
@jordz0005 I lol'd
cplsyx 3 months ago
what would happen if you got liquid nitrogen on your skin?
would it like freeze instanty and what would the after effects be
OhNoNotMyPenis 4 months ago 2
@OhNoNotMyPenis You don't get frozen instantly. The very first thing that happens is that some of the nitrogen that's in contact with your skin boils and forms a protective layer of gas between you and it. It doesn't last very long, though. Damage doesn't happen instantly, but it's pretty quick. Within seconds. The sink that gets frozen is effectively dead. The ramifications depend on how much gets frozen.
JeffersonLab 3 months ago
@JeffersonLab
I came across a video soon after i posted my comment where a guy actualy put his hand into liquid nitrogen and what you said happend. he explained the effect in detail but i forgot the term but its kinda the same as when water lands on a hotplate it forms a layer of steam under it and thats why it beads up and doesnt instaly evapourate.
OhNoNotMyPenis 3 months ago
@OhNoNotMyPenis It's called the Leidenfrost effect.
JeffersonLab 3 months ago
@OhNoNotMyPenis it would freeze arround after 2 seconds , actually you should have the time to drop in LN2 your hand and take it off without have any damage (exept extreme cold on the hand^^) but if you touch the container well it's really really bad.
Koroistro 3 months ago
1:32
OKKWAMOS 4 months ago
I think you spilled a little bit! just a little! she was spilling it all over
StraIghtsBeats 4 months ago
I love that you can spill the Nitrogen and not have to worry about cleaning it up. Great stuff!
camwizardoz 4 months ago
@camwizardoz Giving to do at home ... The dry ice to give it
Hawkpolar 4 months ago
can someone tell me what is liquid nitrogen exactly
YOUNGGUNNO 4 months ago
@YOUNGGUNNO Take a beep breath. 78% of the air you just inhaled is nitrogen gas. If you take nitrogen gas and cool it down enough, it changes from the gaseous state to the liquid state. That's what liquid nitrogen is. It's nitrogen that's cold enough to be a liquid rather than a gas.
JeffersonLab 4 months ago 6
@YOUNGGUNNO Nitrogen is a gas in its liquid form ... Compressed and cooled
Hawkpolar 4 months ago
Where do you even buy liquid nitrogen?
Jojoateyt 5 months ago
@Jojoateyt We have a contract with a supply company. A tanker truck or two arrive each day for delivery.
JeffersonLab 5 months ago
@JeffersonLab Thats so cool! I wish I could experiment with different materials like that.
Jojoateyt 5 months ago
@Jojoateyt It really is fun being able to do this sort of thing whenever the mood strikes.
JeffersonLab 5 months ago
@Jojoateyt
You can actually buy liquid nitrogen fairly easily, depending on the laws in your area. It's not very dangerous. I needed some a few years ago and I just needed to fill out one form with the company. I didn't need governmentpermits or anything.
TheAdmiralPancake 4 months ago
@Jojoateyt Just remember that, while you can legally buy it, that doesn't mean that it isn't dangerous. It's easy to buy gasoline but you can hurt yourself if you misuse it. Same thing with liquid nitrogen. There's the obvious freezing hazard. You can also asphyxiate yourself if you spill enough of it in a small enough space. And, if you try to keep it in a sealed container, bad things happen. Be aware of the hazards before you try getting liquid nitrogen.
JeffersonLab 4 months ago
@JeffersonLab
I didn't mean to minimize the risks. It's always a good idea to be careful, of course. When I said it's not dangerous, I meant it's not a weapon. It's not dangerous in the same way an explosive is, for example.
TheAdmiralPancake 4 months ago
so obvious
RonnieBeachy 5 months ago
I HAVE wondered about dry ice in liquid nitrogen. Now my life is complete.
oracle2world 5 months ago
But will it blend? Oh wait.
BijanEsfandiary 5 months ago
If I melt dry ice, can I swim without getting wet?
JimmyV2009 5 months ago
@JimmyV2009 Sure, if you survive the dive into the pool.
JeffersonLab 5 months ago 13
@JimmyV2009 You'd have to pressurize the room to 5.1 atmospheres first, otherwise it just goes right to gaseous. Even then, it's only liquid at -56°C, which would kill you instantly.
However, increasing the pressure allows it to stay liquid at higher temperatures, until it is liquid at room temperature at 70 atmospheres. I don't know if a human can survive that pressure, but there might be a sweet pressure/temperature spot where you wouldn't instantly freeze solid or be jellified.
Arancaytar 5 months ago
@JimmyV2009 Um good luck being that dry ice dosent melt it turns directly into a gas
offhisleash 5 months ago
@JimmyV2009 dry ice is frozen CO2right, so wouldn't it sublimate
brotherbandit 5 months ago
I'll give you a quarter if you drink the liquid nitrogen!
BenProductions1000 6 months ago 2
@BenProductions1000 Thanks, but I'll pass.
JeffersonLab 6 months ago
@JeffersonLab u drive a hard bargain, 1000 pennies then!
myfingaman2 5 months ago
i ALWAYS wondered what would happen if i mixed dry ice and liquid nitrogen.
now get ya baps out.
DJKloop 6 months ago
what happens when you boil carbonated water or coke. i always wanted to know...
AlphahawkA25 6 months ago
@AlphahawkA25 Boiling it should drive off the carbonation. You'll be left with a really flat drink, I think.
JeffersonLab 6 months ago
@JeffersonLab so, no explosions then
AlphahawkA25 6 months ago