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- เผยแพร่เมื่อ 28 ก.ย. 2024
- View full lesson: ed.ted.com/less...
Water is a special substance for several reasons, and you may have noticed an important one right in your cold drink: ice. Solid ice floats in liquid water, which isn't true for most substances. But why? George Zaidan and Charles Morton explain the science behind how how hydrogen bonds keep the ice in your glass (and the polar ice caps) afloat.
Lesson by George Zaidan and Charles Morton, animation by Powerhouse Animation Studios Inc.
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*reads comments before video starts*
comments - "mmm... iced tea"
mmm... can I drink you?
( ͡° ͜ʖ ͡°)
Same
@@mairawyne1648
don't blame me
He looks like a cup of tea
Nicholas Capucci so trye
frr
I am concerned about this dudes thing with iced tea
Same and I love iced tea
really? you should meet me in real life LOLOLOLOLOLOLOLOLOLOL ICED TEA ICED TEA ICED TEA ICED TEA I LIKE ICED TEA search "I like iced tea..." on ( scratch.mit.edu )
Stella Leicht Our teacher showed us this in class and we all burst out laughing at this. Hey. At least we learnt something
Me to
Stella Leicht I
I wish my girlfriend liked me like this guy likes iced tea.
imao!! XD
LIKE X3 LIKETALITY
And I wish your relationship wouldn't be like hydrogen bonds.
Riju Chaudhuri its a joke broh
burn
This guy really likes iced tea.
ya ur right
Yep 😰 (I'm iced tea myself don't drink me please)
Levi Stepanek to true
who doen't?
Jevil likes Chaos sorry but I’m going to
Instead of iced tea, there would be
tea-ed ice.
SO TRUE fist bump
or bump-ed fist.
Ice tea-ed
litlle change: ted-ed: ice
Tead-ed
I rarely, if at all, comment on anything on youtube. I am currently studying for my chemistry final and this is the most concise and well done video I have seen on this topic. This was extremely helpful and easy to understand. Thanks! I really want ice tea now.
Hannah J not really ice doesn’t float bc it’s less dense, only bc it’s lighter. Density has nothing to do at all w sinking and floating it’s the pressure of the water pushing up on an object and depending of the weight of the object it floats or sinks
@@jordiplotnikovpous4844 how bout go read a book about what density is and understand what you are actually trying to say.
Edit: cuz what you're saying doesn't make any sense
@@jordiplotnikovpous4844 volume decreases and density increases, water on cooling expands its volume increases density decreases. Water on cooling changes to ice so ice cubes floats in water
@@jordiplotnikovpous4844 you are talking about Archimedes’ principle. Although you are correct, you are failing to understand the beautiful generalization that is formed when you understand the equation to its maximum potential. The difference in forces due to gravity and buoyancy is directly related to 1. The density of the fluid (liquid/gas), and 2. The density of the object. The equation reflects this when you do it enough times and understand it. The common saying that “objects that are less dense than the fluid will float and objects that are more dense than the fluid will sink” is in complete agreement with Archimedes principle and serves as a useful simplification of it.
Drink ice tea nak
I do not expect any of the comments to not be about iced tea.
This comment isn’t about it.
That comment Up there had no iced tea
i mean the video was about iced tea basically
Brought to you by Nestea. :)
lol
majagaskar I
Hahahaahhahaahahhahahhahahahahaahahahahahaha!!! LOL
Iced tea. Mmmmm. Iced tea.
Hahah that killed me
Fucking ice tea XD
That is making me very uncomfortable
No Iced Tea = The End of The World
Lol
Oh no No iced tea>end of the world
I wouldn't believe in God if it wasn't for Iced Tea.
True
Lol
(*Iced tea intensifies*)
►Voltron Bugzilla◄ trigg3r3d
ASRIEL DREEMUR (bum bum bumbum damage sounds) you used ICED TEA (save the world intensifies)
this person would rather sink a ship full of people than lose iced tea
wow
Ship sails. Tired old man is captain. Tired old man orders top speed, knowing full well about icebergs. Gives no orders of correct steering procedure if ship HITS iceberg. Ship hits iceberg, starts to sink. Tired old man goes down with ship, knows nothing of "fothering". (You Tube does not either, red-lines "fothering" as if it is not a real word, which it IS!)
@@jackfenn7524 what is "fothering"? Even my phone wants to autocorrect it... What does it mean!!!???
Fothering refers in nautical contexts to covering a leak in a ship with a sail containing rope fibres to prevent it from sinking after being damaged. This was the technique used to help to refloat HMS Endeavour after she went aground on the Great Barrier Reef on 11 June 1770
SnuggleToys he was saying it would be worse to lose ice tea than for the titanic not to sink
That was just a joke about the ice tea
one of the nicest narration! kudos to the narrator
I loved the way he said iced tea... Mmmm iced tea. Lol . A fantasic video though. Really helpfull.
there would still be iced tea..just that the ice is at the bottom lol
Comment section in a nutshell.
90% Somthing to do with Iced tea
6% Other stuff
3% I dont like iced tea
1.9% Nice narration
0.01% comment section in a nutshell.
mmm. Iced tea
@DogeIzLoveDogeIzLife It's 101.01°/. Also I like his voice!
But the 3% I don’t like ice tea is in the 90% about ice tea
@@vinkhoo1 no its 99.91 to little
You haven't count your comment🤔🤔
@@thalespro9995 I am a 3-percenter, except for peach. I do love peach iced tea.
3:40 the iced tea is sweating in fear
I was drinking iced tea right before watching this video.
Mmm... Iced tea
Mmmm... Iced Tee
Mmm... Iced tea
MMMMMMM... Iced tea.
UMM...iced tea
Wait so you're telling me you put water in your water to cool down your water
+tony nguyen yo dawg
It's not water its iced tea. The bacon of drinks.
WATER X3 WATERTALITY
tony yep, the solid version of water. But they call it ice so that people don't get confused
Cupcake Wubington nope ice tea with bacon bits frozen in the ice is
I watched this fory homework, I was ready to take note "the worst is" and then its an... iced tea.
💖mmm ice tea🍸😂
Hmm very educational
first comment not about iced tea damn
Gary See wow first comment without iced tea
UMMM...iced tea
Gary See I can’t let u be the first comment not about iced tea so pls edit it and write ice tea u know what I’ll just do it my self
Iced tea
Misleading when he talks about covalent bonds and then leads into H bonds, and the H bonds "breaking". Because H bonds are not true bonds as covalent bonds are. H bonds are created by forces (van der Waals) that hold 2 water molecules together due to the attraction of the positive charge of H and the negative charge of O (the charges are not even shown in the video when he talking about the bonds). ...it's the alignment of Water Molecules due to their polarity.
+nc1nj2 so are you saying the H bonds are more of an attraction than an actual bond?
That's correct. It's an attraction, not a covalent bond.
+TheCarbonMirror Them scientists need to correct the terminology, then.
This is wrong still. A Van der waal force is an induced dipole between 2 molecules, that is non Permanent. A hydrogen bond is completely separate type of intermolecular force. The electrons spend more time near the oxygen atom in the covalent bond due to oxygen having a greater electronegativity (a concept combining atomic radius, shielding and nuclear charge factors), and thus the oxygen is therefore known as delta negative, or a little bit negative. The inverse is true for hydrogen and it is delta positive. Because the huge difference in what is known as the polarity of the atoms (think of it like the north and South Pole) the molecules of H2O form long hydrogen bonds which are longer than the covalent bonds between hydrogen and oxygen atoms. This increases the space between water molecules and therefor makes it less dense. These h bonds are similar to mini weaker ionic bonds in concept, but instead of attraction between fully charged ions, hydrogen bonds are forces between partially charged dipoles which are much weaker hence waters lower melting and boiling point.
Ice float in water: *ICE TEA*
Ice sink into the water: *TEA ICE*
Why would there be no ice tea? There would be no ice tea with ice floating on top rather than on the bottom. Of course if we assume were not screwed by the "rest"of what would happened.
it's really amazing. keep it up. i wish i could learn all part of my books with such fun like this!
Great lesson. Would like to know more about hydrogen bonding and why it works the way it does. Also, why don't other chemicals float, how are they different?
Now waht do you do after 8 years ?
Your graph at 1:06 threw me with the energy traveling opposite the direction of what I thought was the independent variable, time.
I love this TEa-Ed Talk.
You for sure cannot find a better explanation on TH-cam than this. Loved it! Well,I need iced tea now😂
I just loved the way he narrated the whole video... so cute... 😍💕
+Bhakti Valvi mmmmmmmmmm iced tea
+Koo jo so true!! lol!!😜
Excellent simplification. Thank you!
This was so nicely explained. Thanks! 😃
Thanx for so amazing explanation 💕💕
LOL... no ice tea... grt one
This was a great talking point in my thermodynamics class about how in the choas of the universe, such a small think allows life to be sustained here. Believe what you want but i find this to be divine.
You could have also mentioned the perks of ice floating, when it floats it melts by the heat of the sun regulating ocean temperature, and the continuing pattern keeps marine life possible and water in a liquid form.
Ice tea is more important
And yes I replied 9 years later
@@megakillerx6159this reply is gold💀😭
Props from Harrisburg, PA! Thanks for the assist with my General Chem 1 Project.
It was awesome. Till now I wasn't able to understand. But ur cool dude.
Even I like iced tea
I have spent hours trying to learn this from my A level biology book you dont know how thankful I am for Ted ed I could cry much lovee❤❤
Very nice narration XD
Thanks! In the past my lecturer only says the ice has a unique feature + it has air bubbles in ice. He emphasize only towards the air bubbles in ice, but not why it has that property of being less dense than water at 4 degree Celsius
This video really helped me a lot to understand both the phenomenons hydrogen bonding as well as floating of ice
Thanks a lot for it !😊
This guy likes iced tea a little to much...
i think almost sexually xDDD
Yeah... why do I always come across these videos from the part of youtube with Minecraft?
Eric Gaechter Well...the minecraft part of youtube was always kinda weird tbh...
although i like the game but...
but wat?
Have you tried peach iced tea?
Finally an explanation, teachers never said the why of it
but...but...uhmm... uhh...
I do not put ice on my iced tea
then how is it iced?
+Kevin Chiem I think I should just call it a cooled tea since it was from the fridge, right?
CLARIAN KEN yeah.
Chilled tea?
Frozen tea?
Can't believe that this masterpiece was posted 9 years ago
that's a really good explanation with the animations
50% comments: iced tea
50% comments: the comment section is filled with iced tea
Me : Thinking of better comment ideas
Water is every where, plain yet unique
Daym it is 10 years old!!! 2014 seems centuries back.
Awesome!
Thank you SO much. This helped so much; you have no idea.
love the video and iced tea
These guys are creative. Hope I could work with 'em.
We would still have ice tea if Ice were more dense than liquid water, but the cubes would settle at the bottom of the cup...
+Arjun Trivedi if ice didn't float on water, the earth would have become hot enough to lose all of its water to space, as the ocean evaporated long before humans ever existed, bc of the missing ice caps which regulate temps and reflect sun rays, which would otherwise be absorbed by the water, creating a runaway greenhouse effect. Before you ask, I am VERY fun at parties (cries in corner)
This is the greatest video explaining WHY water is most dense at 4°C
Thank you !!! With this video video my doubt solved.
Btw really nice animation.
“Floating ice”....
sir george zandian you have nice sense of humor .......... i like you narration sir
thanks for making
Interesting, funny & helpful
The best Ted ed video
there will be no ice tea--- mmmm....mmmmm LOL
most helpful video on youtube on this topic✨ thankyou so much!
Ice tea...
" There would be no iced tea.. mmmhh.. no iced tea.. " my whole world fall apart
You ARE MY BEST TEACHER
I wish my teacher used animations and humorous content to teach me any phenomenon like this...
Oh man never seen something like this learning could be so enjoying!!
Man what an explanation!!!!! Moreover your examples, high school school😂.. iced tea(bro u are like obsessed with iced tea🤣)...
I wish your were my teacher at school😊
Uhm if ice would sink, that just mean it would sink to the bottom of the glass. We can still get iced tea by making the ice into thin cylinders, like straws made from ice.
+llgla mmmmmmmmmm iced tea
+llgla Genius.
High school boys and girls:
*"Are we joke to you?"*
Yes. Yes you are.
Yes!! 😂
Yes
yess
Yes you are a joke
2:17 nothing personal Ted Ed.
what a very creative idea of making this video more interesting! Love that iced tea
Thanks I was doing some questions and this was the question that I was not understanding.
Uh, you could still have ice tea. Floating ice cubes isn't the requirement for making ice tea. It would still be ice tea if the ice cubes were submerged.
at the end of this video, i not only learned smtg new but craved for iced tea
JUST ONE WORD"AWESOME"
for the first time i got a proper explanation.
Thank you for the video
Mmmmmm... Ice tea
lol
Ma man loves iced tea. That's what I understood from this Ted vid :D
isnt this amazing?
i think without this ability there wouldnt be even life possible on earth..
who set all this.. this cant be made by randomness!
i dont want to let you belive in god now.. but belive in something bigger that hold the universe together
Flying spaghetti monster is real??
you deserved this like
yobel permana I am quite sure
2salzig2spucknapp "something bigger that hold the universe together". Gravity.
+2salzig2spucknapp This is why i hate religious people, if you say ice floats on water they say it's impossible considering other fluids, as soon as you explain it they say god made it like that.
I love the way you presented this vedio it's funny and useful at the same time😂
The problem is, I don't like iced tea.
WOW FUCK U THEN
CreepypastaMaster7 i was joking rofl
Hipstoprockathon Well you can't tell if someone is joking online, unless they say so or they make an emoticon...
CreepypastaMaster7 :DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
BURN THE HERETIC
Yea! Allentown PA!
The beginning of the video explain the verse from the Quran!
“We made from water every living thing. Will they not then believe?"
(Surat Al-Anbiyaa - The Prophets: 30)
I don't know what is so hard in admitting all these blessings from God it's just amazing!
Yeah it's a Great Revalation Bro,......but Sorry Am an Athiest, and i like ice Tea too !
I don't understand bro , why do all these religious books say "WE" instead of " I " . It's pretty darn confusing , you know ..
sam witwicky The lord says we to emphasize and illustrate greatness! Because "we" sound stronger than "I" If you Google it will find a better explanation.
Akash santhosh I like Ice tea too BRO!
Akash santhosh btw what you mean you're Atheist?? Don't tell me you believe in evolution? Lol
this video is really useful and simple
it helps me understand
mmmm.... iced tea
"John, how come you like that iced tea more than me!"
-This guy's wife
the name's George, but ok
Very nice explanation
That John Shrader fellow is right for the most part, however, he says that "when hydrogen get colder they start sharing hydrogen bonds". This is true but they always share hydrogen bonds, whether the water is cold or not. The difference is the rate at which the hydrogen bonds are broken. When at warmer temperatures they break and reform at a rapid pace and at colder temperatures there is more forming and less breaking, giving the crystal structure.
Perfectly explained
It does require a little longer to explain why it is less dense when most other solid substances are not less than their liquids.
"A world without iced-tea"
That dosent sound as bad as he makes it sound.
Teaching with joy
Great explanation 👌👍👏
Formidable video!
Superb teaching
very clear video, thanks
"But worst of all, there will be no more..."
"life?"
"Iced tea."
Most materials contract when cooled, mostly, because the amount of kinetic energy at the molecular level is reduced and they don't move around as much.
Reducing the amount of space between molecules makes them more dense in a solid state.
With water the contrary happens. The solid structure of water has more space in between molecules than the liquid state, making it less dense.
Lovin' the Saul Bass inspiration!