When Water Flows Uphill
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- čas přidán 20. 11. 2013
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In the Leidenfrost Effect, a water droplet will float on a layer of its own vapor if heated to certain temperature. This common cooking phenomenon takes center stage in a series of playful experiments by physicists at the University of Bath, who discovered new and fun means to manipulate the movement of water.
Researchers test ridged surfaces in order to control the movements of hot water. - Věda a technologie
Came to see water flowing uphill.
Was not disappointed.
MrFlippy Music that's good to hear
Skate fast and eat ass
@@SGprooo To each his own bud.
The Doom From Latveria 1 year ago
Yeah I was ready to comment about a potential letdown to save other from said letdown, but no letdowns were dished out
"as one might expect from a team of under grads... a creative idea took hold"
respect to people who give enough respect to the excitement and creativity of undergrads.. and not use them as labors.. or consider their ideas immature
That was probably the ONLY nod to the under grads...
"There is nothing as worthless or inefficient in the universe as under graduates."
- Every Professor ever
To be fair, undergrads can be VERY immature... but from that immaturity can come some fun shit. There is no reason to make that maze, but it is cool nonetheless lol
Undergrads are much like newborn kittens. They are so curious, and eager to explore and learn, and they are also incredibly ignorant, helpless animals, who are unable to survive without the help from wiser ones. It brings me great joy to look down on them. Such simple creatures are a real pleasure to observe 👍🏿🙄
@@chriswebster24 What an arrogant person you are. No self awareness.
As a kid I was fascinated with how water "danced" on the wood stove. Now I know more! Thanks 😊
@Repent and believe in Jesus Christ bro shut up
It's also the effect that allows to soak your hand in liquid nitrogen without instantly freezing your hand off
I went to the university of Bath, and I was doing my undergraduate thesis research at the same time as these guys were conducting the Leidenfrost investigation. We met because they wanted to borrow the high speed camera I was using. They showed me the sawtooth block, perhaps the first and only one they had at that point. I stupidly scraped my fingernail across it to feel the texture, and the group of physicists freaked out. I felt terrible. Sorry guys! Hope I didn't set you back too far!
nice! wow
i think you deserve prison
this little maneuver cost them 51 years
@@hholster8981 😂😂😂
The idea of scientists pulling their hair out while you scratch a piece of metal is hilarious. I wonder what that looked like to someone who had no idea what was going on.
the Leiden frost maze is so ridiculous.
I want five.
lol
Shut up and take my money jajajaja
Alec Whatshisname, he speaks for all.
Yes, me too
floating water? Yes please!
Alec Whatshisname I kinda want to touch it...and yes I know I would cook.
use different colored dyed water and have races
Separated, right?
Yz250fTony Color, races? RACIST 😂
Only thing they might deposit some dye which will burn onto their equipment.
TheToasties1 - Nothing beats anti-Semitism, though.
The black one would win.
That maze was one of the coolest things I've ever seen. I noticed this effect years ago before I ever knew what it was called. I set a frying pan that had some water on the bottom down on a hot ceramic cooktop and the pan actually moved across the cooktop. I could feel the water droplets keeping the pan from touching the cooking surface. Now I know what was causing it. Thanks!
Damn, the Leidenfrost effect is strong!
Love how this goes from a demo about drops of water to the story of how undergrads are the real kings.
now please tell me:
how often did you accidently touched the tiles?
shh. It's a professional secret
You cant ask them. They floated away
@@Schoko4craft Oh no no no, not another tragic loss for the sake of science, it's been said they're still sliding up that very hot hill to this day
"behold, the Leidenfrost Maze"
translation: enjoy the mindfuck
Medi Ding same
Medi Ding engage the cyraik videos mode
What's so mindfuck about it? They literally explained how it works.
Because it's so enlightening... it's maddening.
Listen, it looks nice and all but how can you apply this to something useful? It's like a gimmick~ =(
Now this is the science i pictured before high school. I wish there was more stuff like this available to teach in schools. There are many possibilities utilising this effect in conjunction with other odd physics.
Love the way you narrate it and let him explain things going back and forth
This is why I AM interested in science. It's stuff like this that inspires me keep on learning and experimenting.
Keep on doing that 'cause it's keeping secrets we still do not have a clue about. There is so much more out there to learn. Once or better *if* we will have reached singularity, life will be completely different. Not sure what the world will then be and look like. Cheers
"i love science"
>failed it in HS
@@user-vv1do1wg1j haha
You mean. " THIS is why I am ..."
look into flat earth , do your own experiments and see what you find. Its flat af 0 curve
when physics undergrads have too much time
And money :)
I'm a first-year physics undergrad; I don't have ANY fucking time at the moment lmao
I'd imagine these were 3rd year undergrads doing this for their project.
@@henrystaples521 that'd be fun
Yeah, writing a business report would have been a much better use of a student's time.
I sometimes noticed this effect as a child when dropping water on a hot wood stove. Fascinating.
Fascinating! Wonder what would happen if the serrated edges are angled more steeply? Would it give greater push in the direction of the surface vector?
your a bit late mate
@@aluminium9230 To be fair I just got here too, I think the youtube algorithm is letting this video have a go around the internet (again?)
@@aluminium9230 This is the internet, time is meaningless here.
@@techstuff9198 I wish you were right.
@@nocturnaljoe9543 me too buddy
hmm self-propelling steaks
Propelled right into my mouth. That needs to exist.
Laugher Cake they do exist, they're called steak factories. you just need to replace the packing department
Aren't self-propelled steaks called cows?
+Keys, Are you Indian?
I'm a simple man, I see science, I like the video.
This is the coolest thing I've seen all year!
Just think how lucky everyone single one of us is to have the very device your holding in your hands right now. I love coming across interesting and educational things just like this. I have probably learned more from CZcams than school could teach me. Great vid by the way 👏
Yeah we're so lucky for the kids that mine cobalt and die everyday just to power the devices we hold in our hands right now.
@@ItsSchwifty well if you don't like it then why the fuck don't you throw your device in the bin, oh and don't forget your TV and all the other devices they die for 🤷♂️
An analytical mind paired with creativity and a touch of playfulness, can result in wonderful things.
dye them different colors and race them
Then the colours mix together
Water has been the primary driver of most races using all definitions, but only now has it become the race itself.
The dye might clog up the surface ridges.
OK.... mind blown! Witnessed this often as I am always cooking and water droplets in a pan are not uncommon... but this makes it even more fun to watch now that I have a bit more "why"!
Very good. For reference, swirl tanks are used when quenching componets of a critical nature post heat treatment. The swirl causes the collapse of the leidenfrost effect ensuring the water is in contact with the component at all times during quenching. This ensures no disparity exists in the material quench which would cause soft/hard spots in the material metallurgy.
Someone should invent a water drop pinball based on this. :)
Or water droplet pong
Look up aqua pores in ever mammal semi permeable membrane aquaporion aka dupont Nafion
YOU the worthy undergrad xD
Was looking for this comment
Yeah and tilting it will short out the electronics and the over heating element will burn they mother F#cker to the ground.
This video is so cool. Just enough flair and the right amount of information behind it. Well done.
once upon a time this types of videos have existed over youtube,but now a days you tube is suffering from a dieases called tik tok....
Thank you. I've never realised until now that I have always wondered why after a pan gets super hot, the water doesn't evaporate anymore
University of "bath". Coincidence? I think not.
Isaac Young lol
I go there, I'm in my dorm in the campus of the University of Bath writing this right now :D Coincidence I never knew about that when I clicked this video..
yeah just like this one time i bought a box of tissues at walmart....walmart ends with a t...coincidence...HA! if only
Thats just like when i bought a box of staples at staples.
The University of Bath made one hot maze!
that was the most awesome thing I have ever watched in my life
I love scientists. We see a phenomenon and say “I could make that into a maze” or some other ridiculous idea
That's more of an inventor/engineer.
Nothing more creative than scientists & engineers. The best artists in the world. I don't understand why the more "loose" creative fields, in which I work, continuously believe sciences are dull & restrict creativity & imagination... they must not understand what creativity is, nor what science is. Creativity & imagination are restricted to what we know & understand (and don't). The more we know, the more we can bend the rules we abide to when we don't understand them.
No doubt the coolest thing I've seen all week.
you could build logic with this. A LEIDENFROST COMPUTER
MrCool1187
Super cool
Actually it'd probably be quite hot.
Tomartyr
pshhhhhhh wachu talkin baut
Tomartyr I hav never seen a computer go go 400 degrees
WeLcOme tO mY ChAnEl
A cpu or heat sync would melt before it got that hot
If you are like "damn i heard this music a hundred times but what is it called?" It's In the hall of the mountain king.
Thanks mate, that’s exactly what went through my head.
lol dude you're awesome
shazam told me immediately ,hahaha
Though in the UK everyone knows it as the Alton Towers theme. The obvious effect of a theme park adopting a piece of classical music I suppose.
What’s it doing there!?
This video blew my mind. i can and cannot believe what i saw. i understand the concept but this was amazing!
Coolest thing I've seen so far this year !
Thats a one hot maze
FUCK
Yeah, the undergrads needed some scientists who spend time in the lab to make that thing... they did these tests with a labber-in-the school. (Labyrinth?)
Spilling liquid nitrogen on your hand won't burn it because of the Leidenfrost effect
Someone on CZcams actually tried it
it depends on the quantity of the liquid if it is just a drop . no effect at all , but if a bucket of liquid is pour on your body poof
frozen you
chirag khandelwal yeah but who would do this xD
chirag wrong
daniel ghfd th sh wrong
Nurdrage
Without me knowing I used to "study" this effect when I was around 7-9yo. While my mom was at work I was mostly alone at home, my brothers were at school and my father was working too. So mostly in the mornings I used to turn on the electric stove or the iron and throw droplets of water on them...23 years later I became an engineer with a lot of passion for science lol
if you were 7-9yo then why were you at home in the mornings?
@@sidatt8602
Either he's telling us a bull shit story. Or his parents didn't give a crap about him.
@@sidatt8602 somedays I had school only from 7am to 12pm, other days from 12pm to 5ish pm. Elementary school, as you may call it in US was not a full day. As we lived like 100m from local high school and like 400m from elementary my brothers arrived around midday to eat the lunch my mother had cooked since 5am before leaving to work.
It was just normal for me, small town. My brothers and I were and still are very calm, we were not like "troublemakers".
Fake.
next step: the drops become self aware and attack shit.
lol
I'm an undergraduate at the University of Bath too! Right now! Literally! I'm in the University on campus typing this. :D
JamesTavRule cool
Be Creative!
Neat!
ok neat bro.
totally neat bro
I enjoyed this so much. Water is one of my favourite things and there is so much more we are yet to discover about this precious substance
Wonderful! And very entertaining. The best qualities of CZcams are exemplified here
This is amazing. Who knew water could flow UP!?
wow...nice
***** That was pretty sick!
I think it would also flow up if it found itself at the bottom of a volume of a non-polar liquid that's more dense than water is.
Up, down...it's all relative....
So cool!!! Amusing too, putting them through a maze! We need more of these in museums!
Great video. This inspires me to resume my university studies to be completely honest.
Imagine showing this in a school be science project. I'd be voting for this project to win!
That escalated pretty quickly, the maze is amazing! :D
A maioria das pessoas sabe que a água evapora quando fica quente, afinal, praticamente todo mundo já teve a experiência de colocar um pouco de água em uma superfície aquecida e vê-la evaporar (como quando um pouco de água espirra em uma frigideira quente). Contudo, a evaporação da água depende de quão quente está essa superfície e da quantidade de água. Quando ela chegar a uma temperatura suficientemente quente, a água vai se “sentar” na superfície em forma de gota e vai levar muito mais tempo para evaporar.
Esse fenômeno é chamado de Efeito Leidenfrost, e também pode fazer com que os líquidos se movimentem para cima, como você pode ver no vídeo. Nas imagens, os físicos da Universidade de Bath, na Inglaterra, usam o efeito de manipular criativamente gotículas de água líquida.
Quando elas entram em contato com uma superfície que está aquecida a uma temperatura muito superior ao seu ponto de ebulição, uma camada isolante de vapor é criado em torno do líquido. Esta camada, então, impede que o líquido toque diretamente na superfície e, portanto, atinja seu ebulição rapidamente. Esse processo é facilitado pelo fato de que o vapor tem baixa condutividade térmica, o que significa que a taxa de transferência de calor entre a superfície quente e uma gota de água diminui drasticamente.
“The hall of the mountain king” is just the perfect song for when science is used for entertainment
Thank you for the reminder. Great stuff.
Hahah the last thing with the labyrinth was awesome. :D
I never knew that the Leidenfrost Effect could be used to do this... this is really cool! Water traversing mazes!
umm no. it follows a trail. it doesn't figure out a maze. youd think scientists knew english. it actually makes it sound scammy
@@ShawnJonesHellion this fits the definition of a maze?
"A maze is a path or collection of paths, typically from an entrance to a goal. The word is used to refer both to branching tour puzzles through which the solver must find a route, and to simpler non-branching patterns that lead unambiguously through a convoluted layout to a goal"
Come on guys, the comment was posted 8 YEARS ago.
@@ShawnJonesHellion Nobody is trying to trick you lol, everyone is kinda expected to figure that out. You know, using their language comprehension skills and common sense.
3:08 iS tHIs PeRpeTUal MotIOn?
This video went from a simple informational science video to an insanely entertaining fun video.
Now, that's a plot twist.
This is incredible. I can't wait to see or hear of some great applications for this effect.
Maybe a Corsair H200i?
perfect for chasing overlords early game and destroying mutalisks/scourge 👍👍👍
The temperatures beings used here are over 400* F well beyond how hot a CPU should get
They got water to solve a maze
well.. "maze"
"Until darkness falls and the cold sweeps in like the raging God He Is"-Russian bot, #1555
Just fill the maze of water :)
I observed this in my kitchen today and started searching about the same... Glad I found this
Thanks so much for sharing this! I am always seeking new information about water and it's uncharacteristic behaviors... Much appreciated!
Seriously, that maze is the best part!
i would LOVE to see them apply this to something like a fountain. Can you imagine how spectacular that would be???
Pretty awesome until someone falls in!
fongfongy This works on people too(Joke). A new form of racing is born!
I would say disney world would love it, except for the burned children.
@@FirstLast-fr4hb Disney Satanists like your idea.
I love science. I've seen the basic experiment many times before but not like this, amazing!
Oh this is so cool! I literally laughed when you showed the maze!!!
the maze at the end...lol absolutely genius!
i wasn't expecting to see the maze
For powerplants that need constant cooling.. couldn't they use the idea of directing the water around to cool it? Say they put a circular heat bank around the fuel source, and when it's above the Leidenfrost point, it curves in the direction of the circle. When it's under the point, it curves away to another area. That way, the water is constantly circulating it when it's too hot, and then once the water absorbs enough energy, it's transferred somewhere else. Imagine this is done with several circles.. and perhaps creating liquids that have different boiling points to keep it at sustainable temperatures..
Great, so that means it is doable. Square miles are nothing. Just stack it into a volume, like the human intestines, and you can easily get square miles of surface in a fairly tiny volume. I always find it funny how easily people give up these days. The problems we encounter are nothing compared with what those came before us had to face. I just wish I knew what the difference was between then and now to cause the dramatic change in spirit. In my opinion, it can only be public school that are deliberately driving the "can-do" attitude and the individuality out of students. You are a drone. You must copy what others have done. If you can't copy it, then it can't be done, and you shouldn't bother trying to get it done because you will waste your time. That is the modern public school mentality.
not to burst your bubble, but didn't they say part of the reason this works is because the water is insulated, and it evaporates slower under these conditions? If the water evaporates slower, that means the rate of heat transfer is slower. Not an ideal property of a coolant.
Sure it might work, but man calm down about that public school crap. It's also an important part of the creative process to point out flaws and problems and work to correct them. Diving into something without thinking it through or even trying to anticipate problems is never a smart way to go.
Must be understood that on that kind of instalation you dont want heat to evaporate the cooling (on which this principle relays) the objective is to cool down the things the faster posible and keeping the maximun amount of coolant while not getting lost
"Power plants" transform heat into kinetic energy by way if evaporating water to drive a steam engine. The evaporation is the goal, not the problem.
Yeah but the point of power plants using water as a coolant is so the water evaporates into steam to push turbines. The leidenfrost effect insulates the water which severely hinders the rate of evaporation, so probably not all that practical over current methods
Coolest thing I've seen this year!
The explanation of the Leidenfrost Maze is a little deceiving. The Maze doesn't primarily rely on the steering from the minute effect that the small grooves within the ridges of the block cause... it primarily relies on the larger grooves with a constant temperature to direct the water. Notice that the water will travel in the direction perpendicular to the grooves, just as in the original experiments.
What are you talking about??
Gordon Tendick nice way! . But I think if it was always moving towards temperature gradient, then it do not satisfy what they observed ( like towards left when temperature is above ~ 500 and towards right when temp is under ~500) . I don't think gradient can change with temperature of a same surface and same heat source.
If someone was to make the bottom of a boat with the same design and super heat it. I bet it would be the fastest boat in the world.
You're giving people ideas. OwO
roy romano - Fool! You'd be better off purchasing a car full of microwaves and power them on around the clock. The equivalent would be to do so just for the sake of wasting money! Your idea won't move a boat. You'd only be moving the body of water the boat is in, which is ludicrously ridiculous!
I’d love to have been taught like this at school!
conservatives are going to make sure schools don't exist soon.
Short and sweet. And intriguing ! Subscribed :)
I just commented on a video about propelling a water droplet with wetability gradients and thought of making a ring or a square infinite loop but not a maze! Very creative, love the work. I wonder if this or capillary action is more efficient at moving water vertically.
Capillary doesn't need power. This needs high temperature.
They need to make a game with players dropping water onto the ridges, and having them get propelled into the middle and colliding...
Just for that dank name and profile picture here is a like
minecraft durt XD
So this is how this effect is named! It saved my arm when I accidentally spilled molten silver on my luckily sweated palm. I only burned my hand painfully instead of melting it off instantly.
+LikePhoenixFromAshes How cool was that experience?
Joseph Li
*BA DUM TSS
don't worry, MAN'S NOT HOT (never hot*)
That must have really hurt, but Leidenfrost has got your back.
the leiden frost effect actually only refers to the insulating steam layer between the surface and the water.
The Leidenfrost Maze is a wonderfully silly and fascinating idea. Bravo. Subscribed.
This was so cool! People who aren't interested in science fail to see how fun it can be.
*Fascinating.*
Is this where scientists are spending money?
Actually, I'm not even mad, that's amazing!
"Impractical" research like this might be very useful to some inventor or scientist in the future. I'm sure back in the 1700's people called the early research into electricity a waste of time.
Bruce Hernandez
Important for understanding condensation in steam turbines, as an example.
I watched this so long ago im glad to have seen it again
Amazing! When science meets creativity!
dude I found this more awesome then I expected! awesome!!
Marco Varela expected
I had an opportunity and took it, with trump in office. The spelling is least of our problems
Historias Asmr than*
is it just me or does it seem likely that this will start a new form of gambling?
Elaborate
an example could be like taking different colored water droplets and starting them off in different corners then betting on which gets to the center of a maze like the one shown above fastest
explain
I bet you it will.
Richard Highwind was that a fucking pun
This was so fascinating, why have I never heard of this before??
Fascinating stuff. Love it.
this brings it all back
hours of fun as a kid with a glass of water and the hot plate on the rayburn
Ade Fegan
"rayburn" ?
+Ade Fegan so tru
This is cool. I see it happen eveytime I spill water on my wood stove when filling up the water kettle to keep moisture in the air. But I didn't pay that much attention to this effect. Now all I have are questions.. Can the drops of water hold weight and if so how much? How big of drop can you use? What can we use this effect for?
That is so satisfying to watch!
This is so creative and interesting, and also simple but complex.
actually it's not only when the thing you are pouring water is REALLY HOT, it's just when there's a HUGE difference between the temperature on the liquid and the surface (for example a hand a liquid nitrogen)
Your hand is really hot compared to the nitrogen.
You need something way above the boiling temperature. Also, it depends on the heat conduction properties of the liquid.
yeah that's what a mean...there's a huge difference in the temperatures, that's why the effect happens
ok ok XD
If you used two sets of rigged plates, direction the droplet the same way, could the droplets Climb Straight Up???
I think of you make two plates and put them close together so that a droplet can touch both of them at the same time, it will be propelled upwards. You could maybe make a tube with these ridges on the inside and get the same effect. I have the facilities to actually test this, so i may give it a shot!
atiseru Any results yet?
I see your point here but unless the force of vapor downward exceeds then weight of the water. its not going upwards. But It would be awesome to see this tested.
atiseru Any results?
We need results
Beautiful experiment.
Thank you for this!
When the experiment fail and they started doing the maze 😂😂😂
Leidenfrost maze... Awesome. Now just put some mice in there... Delicious bite-sized mice.
1Bloka get out
SHOCKING, BEUTIFUL, BRILLIANT. LOVE IT.
This was cooler than I thought it would be.
also known as the *mild* safety hazard 😂
Would it theoretically be possible to use this in place of magnetic acceleration or flux pinning in order to temporarily accelerate and move an object atop the water?
If an item is heated to temperature and Leiden Frost effect starts I think the item would sink in water because I can't see how something could float on top of water if it is surrounded by a bubble of steam
@@goldyguns9545 it isn't surrounded. Only the bottom is steam.
@@mrtechie6810 Exactly, only a thin layer of steam is created between the heated surface and the water.
I’m sure I’m missing something, but if you heat up the bottom, don’t you run the risk of boiling whatever’s inside? I mean, as a practical application, I can’t see many uses unless you’ve get a great insulator. But that’d probably add far too much excess weight to be effective…?
Only one way to find out! Test the theory
Awesome video guys
.
This happens to me when my Chai overflows and then i have to quickly blow the droplets off the stove 🤣
Wait, could this work reversed, as in having a thin sheet of really hot metal float on top of water?
I think the metal would cool too quickly, but there might be some useful applications for that.
+nambinhvu Well, if your energy source is sufficient to keep it stable it wouldn't.
+betadryl I think it would be a technological limitation. You would need enough heat to produce enough heat to lift the sheet. To heat it more, you would likely need heavier equipment, thus needing more heat
Think thermal nuclear submarine ie., energy and heat would not be a problem.
+Cheong Ziyong water "floats" on steel, steel doesnt float on water. It would sink but still be covered in a steamy shield for a while
That's great, now how's that hoverboard going scientists?