3 Perplexing Physics Problems
소스 코드
- 게시일 2019. 11. 19.
- Why does shaken soda explode? Does ice melt first in fresh or salt water?
Thank you Squarespace for sponsoring this video. Go to squarespace.com to save 10% off your first purchase of a website or domain using code: VERITASIUM
This video features experiments that have been shown to me by science teachers over the years. Does ice melt fast in salt water or fresh water was an experiment introduced to me at the Utah Science Teachers' conference. The ring of metal over a chain demo came from a teachers event in Florida. The idea shaking a carbonated drink increases pressure came from an email.
Special thanks to Petr Lebedev for building the pressure gauge.
Links to literature are below:
Victims of the pop bottle, by Ted Willhoft. New Scientist, 21 August 1986 p.28
Carbonation speculation
The Physics Teacher 30, 173 (1992); doi.org/10.1119/1.2343501
Agitation solution
The Physics Teacher 30, 325 (1992); doi.org/10.1119/1.2343556
Filmed by Cristian Carretero, Jordan Schnabel, Jonny Hyman, and Raquel Nuno
Music from epidemicsound.com "Seaweed" "Quietly Tense" "Mind Shift" "Observations"
Derek: works hard, makes smart science video
internet: *_oh, look, there's a fly!_*
It's at 5:20 people, if you need to see it. This needs to be a meme
It looks like it's animated. But maybe not. idk
@spoonicuss I can't see it ?
Not just any fly, it flew through the ring!
That is a perplexing science problem in itself
Can we all take a moment to appreciate this fly flying through the ring in slo-mo? 5:26
Pol Gabaldon thank you
Opened the comment section for it
Nicely spotted
I thought it was a spider!
It also went through a falling ring!
The slow-mo audio of the ring falling down the chain has to be one of the most satisfying sounds I've heard
slow motion audio is normally dubbed because the real audio is trash
that fly tho
coolest fly ever
sounds like chains in a medival dungeon or something
weird
You'd be interested in the sound of a nuclear reactor starting
I'm more impressed by the fly who flew through the ring while it fell than the actual ring trick itself lol
yea that was some incredible performance
I was so impressed hahaha
Impressive catch
I came to see if more people had noticed that.
@@a.c.4054 I'm baffled that he never mentions it in the video
Imagine writing a paper that can be disproven by attaching a pressure gage to the bottle
ikr. like what were they doing
@@TheGameChallenger no a simple pressure gauge is and was available pretty much everywhere
Even if a simple device that checks increase/pressure would work
(example simple piping can be used to make a working pressure measurement using Bernoulli's principle(
It wasn't really a paper. It was an article in _New Scientist_ magazine. Still embarrassing, though. I haven't found any further reference to this article in old issues, so if they did get letters from the public, I don't know how to find them.
@@TheGameChallenger it was the 80s, not 300 B.C.
@@SBImNotWritingMyNameHere oh ok nice.
Imagine giving your friend a sip of soda and he just goes "ahhh, non-equilibrium beverage"
Ah yes
Bababoey
@@sdreizon3710
Indeed Bababoey
What is baboboey?
@@anonymousstout4759
KRplusr "Twomad" uses that as censoring swear words
I have a pretty big physics problem that has perplexed me my whole life.
The closest supermarket from where I live is 500 meters (roughly) and it takes me 12 minutes to walk there and back at a walking speed of 5 kph (3 mph). The problem is it has taken my father 18 years to make this trip and I want to know how this strange phenomenon has occurred.
This phenomenon has been observed to take place when there is a deficiency of a specific lactose drink in the refrigerator and the father steps out to source it .......
@@glkglkglkglk9193 ah I see. That would definitely define a cause but the phenomenon still shouldn't occur under this premise. This may require further testing.
This is most likely due to a phenomenon known as "disloyalty", in which fathers and other close family members have been known to spontaneously disappear, never to return
Aw, sorry to hear that. Something similar hppened to me too.
The known side effects of this phenomenon is also called as “Fatherless Behaviour”
The hardest part of the ring experiment would be catching the fly and getting it to fly through the ring to replicate the experiment exactly.
Which fly???
@@PrajwalNayak-so5uv5:25 look on Derek's finger
That fly on 5:25 was like "you want to challenge me, mortal?!"
Did.... Did the fly go THROUGH the ring WHILE it was falling?! MAGIC!
I noticed that right away as well. Ha.
@@Taylor4073 I NOTICED THE FLY THROUGH THE RING AS WELL RIGHT AWAY IM GLAD OTHERS DID TOO THAT WAS AWESOME
WOW that was awesome!
That fly has Gundam pilot reflexes!!
"lets put these ice cubes in..."
proceeds to throw ice SPHERES into the water
Cylinders*
Circles are 2D
@@B3Band spheres are 3d circles
fun fact for anyone unaware; circles melt slower than cubes, and spheres slower than cylinders because ice always melts at the edges faster...
@@nokel2 b-but circles would melt instantaneously...
@@nokel2 and a sphere would have the least surface area in contact with the water. And ice star will melt even faster than a cube.
In the slow-mo of the falling ring you see a fly flying away
At 5:20 beneath his middle finger
That fly didn't just fly away, it flew through the ring and THEN flew away. Stunt Science Fly!!
@@DaleLombardo the fly was a paid actor
10:44 you can see it again -_-
But the cameraman didn't capture the only part of the trick that shows how it works 🤦
I was at a place where people were selling all kinds of puzzles and things and one that they were demonstrating was the ring and chain. The guy said he would give it to me for free if I could get it to stick on my first try. So instead of just going for it, I looked it over and thought for a second and pictured in my head what I needed to do to get it to stay. So I dropped it correctly and it stuck and the look of shock on the guys face was better than a free puzzle.
5:20 I'm impressed by that fly's performance skills.
Your comment made me watch it back. And yep. I'm impressed too.
Caught that too! Good eye
LMFAO That fly might be part of "Cirque du Soleil"
It looks like it flew through the ring.
Haha
He went back to his roots, challenging wide spread science myths
Happy to see more of this
@@pyguy9915bitch please this fool is explaining simple science and you fools are wow'd
@@beejaykisses2235 I guess we now know who is the actual fool here. Thanks for giving us the evidence.
@@beejaykisses2235 You should be in MIT, genius. Don't waste your time with us mortal fools.
@@beejaykisses2235 no-one likes you
i love how there's alote going on in this video that it keeps me hooked . the way he moves from subject to another, adding something fun to watch, even the little Fly in slowmo. my brain doesn't get bored
Great explanations for phrnomena that we took for granted but never actually understood. Well done !
Prediction: that fly will have its own Twitter by the end of the week.
I came here to comment about the fly. But the work has already been done, I see.
hahahaha!
@@altheaunertl what's the twitter
Again, beaten to the punch. Circus fly shall live in infamy and fly through all the rings...
Already does. And I just became its newest donor on Patreon.
Paper straws that come wrapped individually in plastic. Genius.
usually warped in you DIDN'T guess it more paper
@@gotoeceaerx plastic straws covered in paper wrap lol
Only paper straws I've seen are wrapped in paper.
The Berb pretty sure paper straws aren't a thing
@@bojackson3073 There are paper straws
This was the first veritasium video I saw, I actually saw it on Facebook and didn't know it was a KRplus channel until few months ago.
Now it's my favourite KRplus channel.
4:04 - 4:27 is literally the most satisfying sound in the known universe; i could listen to that for hours ♡
5:26
Person: *drops ring*
Fly: "Are you challenging me?"
I though I was the only one to see it!
beat me to it
It's a paid actor
IM SO HAPPY I READ THIS BEFORE GETTING TO THE RING PART LOLOL soon as i saw the fly i was like ITS GO TIME BABY
@@Djentle-Rain lmao🤣
This man not only told us how bottles explode but how to prevent it
Give him a salute
You prevent it by not shaking the bottle.
He went further, he told us how to *revert* the shaking.
Give him another salute!
@@Aladato *RESPECC*
The sad thing was I totally knew about the side bubbles when I was a kid, and just forgot about that whole thing as an adult :(
🖖🏻
Not really needed... content for dumb people...
Imagine if there was an infinite number of perplexing physics problems, we'd never get to the explanation of any of them
Actually, this situation is commonly referred to as 'the universe in which we live' and in practice the outcome is that our infinitesimal slice of the infinite potential knowledge slowly expands on average.
That’s what people felt 2000 years ago. Other explanations were born as we humans don’t like unknowns
It will be absolutely fantastic if you guys can make educational videos of maths and biology more often
That's right internet, we aren't done with mentos in soda
Well, now we are.
Now we need memes
"Would you like to make it a combo?" "Yes, fries and non-equalibrium beverage please."
*equilibrium
would you want a paper straw with your non-equalibrium beverage
would you want a paper straw with your non-equalibrium beverage
@@TheGreatWent1 No, I'd prefer one with less nucleation sites.
_hands over beverage in a can_
I said, non-equilibrium
_pours beverage into a cup_
Perfect
My mom taught me with soda cans (not bottles) that if you want to prevent it from exploding after shaking it, you tap the top of the can. Never made sense why but now I finally get it
This was a lot of fun! I feel like I learned a lot. I was surprised at each one of the results. Thank you!
About the second problem: ice cube in fresh water and in salt water - why not use thermal camera (with time-lapse) to see what is happening?
🤦 should have thought of that
@@veritasium make it a follow up video or something like that :D
also if you look close enough you can actually see the phase difference in the salt water glass. As well as the color from the colored ice cubes accumulating at the top of the salt water glass :)
Too expensive
was my first instinct as well :D And when he was doing his future thingy I thought "ah he thought about it" ... still nope :D
The slowmo sound of the ring and chain was very satisfying.
Actually, the sound is made up. Sound at such slow motion videos doesn't make sense, and so it's manufactured and edited in the video afterwards just to make the thing feel better.
@Daniel Kintigh Not about beating anybody :) just about letting people know. Since rapid cameras record high frame rates only to lower them at editing, they're effectively slowing time. Sound are air vibrations, and pitch is a sense of the frequency of those vibrations. By "slowing time" 10 times, all sounds reduce their frequency by a factor of 10, and so many audible noises would become infrasounds, and other high pitch sounds would become very low. Weird stuff, but it's cool to see how people came up with the idea of editing audio and make it sound Slo-Mo like
@@rojirrim7298
Huh, well whoever crafted that faux-chain-audio did a very good job of it.
@@edouarddubois9402 Check this out if you want to know more about the process: krplus.net/bidio/kbNvq6qflWrdnKg
SmarterEveryDay made a video about fabricating sounds for his slow motion videos. Incredible stuff
Similar to the ring latching on the chain, an inverse kind of trick is to pull off any elastic from a large number of them looped around the same stick. Pull on your chosen one away from the stick, then pull the loop over the top of the stick and you will liberate only your chosen elastic while leaving the others on the stick, (instead of having to pull off all the ones above it or something equally messy).
Love the fly on 5:21. It sitting there on his middle finger then as Vert lets go of the loop the fly flies through it. Awesome!
You can answer the poll here...
KRplus: removes polling feature from KRplus
Me: breh
Yeah y did yt get rid polls
@@crazytunafreak6194 bicuse they esshols
@@scfog90 yea they realy are
They removed the polls because not many youtubers use it. i also have no idea why they didnt just leave this feature as some youtubers do use it to get what the viewers think
@@horizon8727 I don’t understand, it takes effort to remove it. Why not just leave it?
He even got a hollywood trickfly just for the slowmo footage
Yes! I spotted the fly and was amazed that it flew through the ring as it fell!!
@@swissmeat1227 Its a fly that did a trick
Lmao
YouhBi more like in the cartoons, they would use trick flies as a joke like people in circus.
He should use bucatini like the Italians do now instead of paper straws
Something I appreciate about his videos is the sound design for the slow motion parts. That’s someone making a sound effect to fit the slow motion video it isnt the raw audio slowed down (audio doesn’t play nice being slowed down that many times) but the fx are done sooo well
4:25 gosh the sound design is just amazing
Normie: Soda with gas
me: non equilibrium beverage
Normie: Shaking the bottle makes it foam.
Me: Rapid acceleration and deceleration of the polymer container holding non-equilibrium beverage introduces an increased amount of nucleation sites, thus accelerating the dehydration of the aqueous carbonic acid.
@@Xenrel 😂
I love intellectuals.
Gordon Ramsay: Disgusting.
depends if in open or closed system actually
The sound of the ring in slowmo is really satisfying
aspecially the last part when it clunks.
Its fake
@@HubertJarechowicz yeah I think it is fake cos the same sound was used somewhere else in another video
I don't understand why givin prerecorded sounds on slow recordings, be better to gave original sounds (trsanslated in google translator sry xd)
Well i dont mind if its fake, as long as i enjoy it
This is good, you put link in your short video directing to this exact scene. Well done using shorts to boost original video. 👏👏
Very interesting explanations. Well done.
i have a perplexing science problem: where do my socks go when i do the laundry?
Hell
laundry
Sock dimension
@@leovillads1677 correct. There's a dimension where the socks go. Its a dimension full of single socks, single shoes, keys, coins, pens, lighters, hair clips, lipsticks/mascara brushes, salt shakers, scissors, flight MH370, glasses, rings, dentures... all sorts of odds and ends.
Schrodinger's Socks. They are there, but they are not there.
That's how I've always dealt with carbonation, flick the walls of the bottle or can before opening. Everyone always thinks it's amazing, never knew why it worked but now I do
Me too, I didn't know why it worked, I've just always done that.
Thanks for the idea.💡
It only works with certain carbonated drinks, my chem teacher said something about it not working with diet sodas or something
John Dorian 3-tap method
@@dougswainson4704 I drink a lot of carbonated drinks, I know it's not healthy, but I've never met one it didn't work with. I've actually gotten into a habit of shaking them up and tapping them before opening. Regular, diet, zero sugar, Sparkling water.... Works with everything I've tried
very interesting video
but i have to say one thing about the carbonated drink
normally (at least in austria) if you buy a bottle with a carbonated drink in it and you shake it, the bottle will be harder to compress, which means that the pressure increases
however we all know that it doesnt get harder to compress anymore after a sometime of shaking or just standing somewhere
so if you ask if the pressure will increase, the answer to this question can be different, based on some variables
The best part of the video . . . the fact that the fly through that ring as it was falling at 5:20
5:20 that fly went through the ring!! What an amazing performance!
👀 Whoa!
That's a nucleation site with wings
Lmfao same! That fly put on a stellar performance 👏🏽
That fly was apart of the Illuminati stay woke
420 likes!
imma be calling soda "non equilibrium beverage" from now on
Lmfaoo.
Do you watch the real default cube?
@@lollingrock what do you mean the 'real default cube'?
default cube is literally an object
Same😂
I would call it a schrodinger!
The General taught me that ring and chain bit back in 2015, absolute LEGEND!
"Ah... Equilibrium beverage."
Advertisement gold
“I hope you made your prediction and registered it in the pole up here”
...
They got removed in July 😭
KRplus removed that feature because "It wasn't used alot"
@@Kampfender_Krieger neither is the vr
the polls were on almost EVERY VIDEO
@@Saint_Arod yet they still have it...
5:24 That's a well trained fly
Search egga on youtube
Im looking for this comment 😂
YES!!!
@@leimigz Same here buddy !
I was wondering if anyone mentioned it
I can't believe I learned something today at 2:30 in the morning. Amazing. Love the videos by the way. Fascinating stuff.
7:00 love ur house ,, and thank u for showing us it.
The fly actually went through the ring and left it in the dust. Fast bugger.
Are flies bugs?
If so, nice pun.
Pretty sure they're just classified as insects but not completely sure.
@@DanielDavies-StellularNebulla Bugs are a very loose term, not scientific, an insect can be called a bug, so can anything buggy.
Do you know the time stamp?
@@zec.4491 5:24
@@pillarshipempireemployee0142 One Google search and one word...
Hemiptera
The kid in me: yay exploding soda bottle!
The adult in me: that'll stain that dress shirt
Only if it's sugery. Diet soda usually comes out.
Stil, I was thinking the same thing: he should have used soda water 😆
lol, the adult in me was thinking of the ant trail he was going to have
young adult me : excited and worried lol
The adult in me is annoyed by the wasted drink and the money it had cost
Shows how important it is to rehearse and return to things you know. I knew about the nucleation site bubbles helping dissolved carbon return to gas, but the knowledge didn't trigger from the memory when focusing on the pressure/temperature talk.
Just in love with this channel.
The most impressive part is that he made a fly jump through a hoop😂
agree
Hold my non-equalibrium beverage
5:21 fly on his middle finger
🤣 amazing.
omg I was so off put that I had to see the comments form someone that noticed that
When I was a kid, I was taught to tap on the top of coke cans before opening them in case they had been shaken or dropped. I never really thought about why this would help. Turns out I was removing nucleation bubbles.
Yes and no. The tapping doesn't do very much if anything, it's the waiting that does it.
NK_20 but he just showed that it does and why in the vid...
NK_20 no, waiting just means you are waiting for the bubbles to come off of the walls of the bottle, but tapping them gets rid of them from the walls, meaning it won’t fizz up as much
Steven Spencer sameeeeeeee when he was taking abt the air bubbles I automatically thought to my self y do my friends do that to a come bottle 🤣😂😂
Tapping on top doesn't do anything. Tap it on the sides instead.
The 4ever science class is very much appreciated. Glad your getting compensated well 🎉
The slow mo sound from the ring hooking onto the chain is so satisfying
How fast does a car need to go to make a flat tire support the weight of the car through centripetal force I’ve wondered this for years
I never thought about this and now I want to calculate it. But there are so many variables when it comes to tire base strength due to the compounds used and I'm not a tire expert :( very interesting though.
There is only one way to find out
and what about the gyroscope effect, is it significant?
You'll have to define 'support'. So-called run-flat tires rely on very strong sidewalls to temporarily acheive this. How could you measure the contribution of sidewall strength vs centripetal force vs any other variables I'm not thinking about?
@@mrjbexample That speed is surprisingly low. However, it is virtually impossible to achieve with 4 flat tires in a regular car.
Me: "Air bubbles"
Veritasium: "You mean nucleation sites."
Veritasium says nucleation sites, but I also say air bubbles. Many tiny air bubbles simply vastly increase the surface area, through which the gas can diffuse out of the liquid. The use of the term nucleation is inappropriate - except in the case of the mentos.
It's a scientific word of bubbles!
@@yourevolution7850 As a kid, I loved playing with many nucleation sites made out of a homogeneous mixture of sodium hydroxide and dihydrogen monoxide.
9:45
@Joserra Herrera Hi Joserra!!
Thank you for this video, it was awesome.
The ring trick was covered in "Sandi teaches Alan a new party trick - QI: Series N Episode 15 Preview - BBC Two" a clip from 2017, and they do it one handed
5:25 no one worries about perplexing physics problems when a fly comes along and steals the show.
That fly flew straight through the wring. It's amazing.
It feels like I've learned so much stuff in just 14 minutes.
Lol
I knew it all before
Tim Steuerwald. Why is that relevant? He was just saying he learned a lot.. and here you are flexing on him??
13:59 minutes
@5:20 Hands up for the fly's evasive manouvers. :)
the fly on your finger and then it flying through the ring after you dropped it is one of the more amazing slow mo videos i've seen lol
Honestly the sound of the ring locking on the chain in slow motion is so satisfying.
Kinda sounds like a civilization being established (idk of that makes sense)
Funny thing, that's not the real sound, the sound you heard are Foley sounds.
Nice profile pic : )
Honestly, if you satisfying just with it, You have a good life
The sound is fake btw they add them in editing to make the video look and sound better. Don't believe me search it up.
" *Non-equilibrium beverage* "
- Veritasium, 2019
Trademark for beer
well done, you took something someone said, put speech marks around it and wrote their name and 2019 after it. do you feel like you’ve achieved something now?
@@obviouslymatt6452 OK Boomer. (n.d.) In Wikipedia, The Free Encyclopedia. Retrieved 01:23, February 29, 2019, from en.wikipedia.org/wiki/OK_Boomer
@@obviouslymatt6452 "well done, you took something someone said, put speech marks around it and wrote their name and 2019 after it. do you feel like you’ve achieved something now?"
- Constantinople, 1054, in 2019
Went down as dumbest KRplus bully comment to date.
@@obviouslymatt6452 ok boomer
The fly flew off your finger and through the falling ring! Awesome slo-mo candid shot!
One of my favorite videos ever!
I really liked the trick you did with the ring, especially the part where you trained the fly to fly through the ring at 5:26 when you dropped it. Very impressive.
Who else re-watched this at timestamp several times in awe of the fly?
I just looked in the comments to see if someone else lol se saw this lmao
@@vee_889 same 😂
The slot mo ring noise sounds like something from a transformers movie
Edit: holy hell 1.5k thank you all
fun fact, slomo sounds are made for the video, its not recorded during the filming, Smarter Every Day has a video about this with his very own sound effects guy :)
It really does
@@drizzlingrose hmm in this video it may be real sound since it sounds lower frequency in slow mo?
pumpkin storm 189 that was awesome
@@frizstyler No, the video is at least 10x slower than real time, any audible sound in playback would be ultrasonic during recording. The sounds you hear in slo-mo greater than half to quarter speed are artificial sound effects.
4:14 that sound design is just perfection!
Nice videos and constant, keep it up, imma share Ur video, I wish you get 100 Million subscribers one day
I feel like a child learning general science at school again. it's amazing.
2X speed makes it even more realistic
5:25 that fly had the audacity to sit on his hand, then fly through the ring mid air damn
3 seconds of fame surely amounts to 15 minutes of fame in fly time. That was his moment.
knew i was gonna find this comment
@@ResumeOurKarma Me too xD.
Very glad that this was already here.
LOL! I made the same post! Haha when I saw it I was like... What are the odds of that happening?! :D
The one with the chain was awsome, love the vids
those slow motion chain and ring sound effects sound SO COOL
When I was in Italy I ordered an iced coffee drink and instead of a straw they gave me a piece of long, hollow pasta. Biodegradable. Strong.
Possibly less nucleation sites than a paper one too! Idk for sure though. Was the taste better than some of the paper ones?
revenevan11 I’m sure any straw would taste better than a paper straw
But also sounds like it would add a slight taste.
So it turns out the John Dorian three tap method is actually the best way to disarm a shook beverage!
Elliot Sneddon ahaha exactly what I was thinking the moment he tapped coke
Just don't try it in a Porsche
I love that your name is elliot and ur the one commenting
u don’t see a lot of scrubs references in 2020
Hey are you okay?
No. 3 is depending on length and weight of the chain, distance between the chain strands and also on weight and rotation speed of the ring.
The more you increase the length of the chain, increase the weight of the chain, reduce the distance between the chain strands, reduce the weight of the ring or decrease the rotation speed of the ring the more unlikely it becomes to achieve the same result.
It's like the phenomenon of a buttered toast falling from the table mostly landing on the buttered side.
I'm impressed with the gnats trick flying skills on the ring and chain slomo
The sound of that chain tightening around the ring was probably the coolest thing I ever heard
Certainly not a recording of the actual chain
Yeah I wish he didn't do that. Great channel about how things work but adds nonsense like that. Same with Dustin at SmarterEveryDay.
All audio is fake. I am so sad about it
Michael M wait what nonsense. I think Destin already made a video about how sound in slo mo is and how they work around it
@@somethingotherthanthatagain audio isn't recorded with any slow motion footage. They add sounds afterwards so you dont watch a slow silent video
These are obviously just bugs with Earth's physics engine. The devs should have it patched soon.
Pretty sure it's a driver issue
These jokes are so overused
@@jordant840 You've overused your letters for today ^^
@Maddy Terrell Ow my feelings.
r/outside
5:20 Great shot of the bug flying thro the Ring ,, so coooll!!!!!
The little bug got me!!! I saw it while you dropped the ring in slow motion and thought it was on my end...
It wasn't.
4:03 i *NEED* to have this sound effect, it is so unbelievably satisfying!
Sounds like medieval forge type clanking
@@BanermanArthropide That's exactly what I was thinking
made me think of 300
You probably can get a similar sound by letting 2 weight plates hit each other (no rubberized cast iron).
Ikr
If I had a nickel for every time I’ve heard a KRplusr mention squarespace I’d be getting more money than the content creators
are you suggesting squarespace pays less than a nickel for an ad? poor creators
In my case its skillshare
Yeah I’m not buying it. Vote up here if you think that this guy would actually have more money than the people getting sponsored.
I deliberately spite these excessive advertisers and vowed to never purchase from them
they're spending too much on ads most these youtubers never even used what they recommend to others.
The slo-mo sounds SOOOO good
That fly that flew through the ring in the slow mo clip was amazing.
5:20 Can we at least give some appreciation to that bug on his hand for pulling off that awesome flight through the ring as he did the experiment?---
@@Mythraen Lol, dead-ass didn't even see it
It didn't appear to me at the time I watched the video, for some reason
Edit:
Forgot to say: thanks for pointing it out tho :'D
The fly wants to join the circus. It was practicing.
Was looking for this comment haha
@@oliverrosenkrantz2670 I was as well lol
i paused to look for this comment
Me: Doesn't understand how the ring got stuck
Veritasium: Explains in a very simple and understandable way
Me: Doesn't understand how the ring got stuck
Try thinking of it in it's reverse. If you take the chain (which is a enclosed loop) and thread it through the ring so you have two equal lenghts of chain with the ring hanging in the middle, you then take one of the sides of the chain and loop it through the other side of your chain. As long as you pull on the side that you looped through your chain, the knot will stay tightened.
4:15 is the same thing but with the ring going through the chain and it's just a bit flashier because instead of you doing the loop by hand, gravity, inertia and the geometry of the ring is doing all the work for you.
Still do not understand it even watching it in slow motion.
@@knotten33 cheers! I almost think I got it! X
Same here 😂
Me - watches the slomo - only sees the fly!!
Your channel and Physics Girl are my two favorite science channels. The only other thing on the internet that even compares are the Richard Feynman lectures - but my all time favorite is "Los Alamos From Below". I watch that video as I'm going to sleep sometimes.
Oh yeah and "Smarter Every Day"!! How could I forget Destin?!
The paper straw fact is pretty cool. After hearing that, something in my head *clicked* and i then realised why its so fizzy when i drank sprite with my straw than just my mouth. Even tho i had a metal straw, it seemed to have the same effect as a paper one. Anyway, thanks, nice vid
The soda questions were the biggest “i didn’t understand but accepted it” things, thanks for explaining this.
It's more of a chemistry thing then a physics one. Chemical equilibrium is probably something he could do an entire video on.
Basically when you first seal a bottle of soda there's some CO2 dissolved in the liquid soda but not a lot in the air above the soda. CO2 wants to be a gas at room temperature though so some CO2 molecules separate from the soda and go into the air above the soda which increases the pressure in the bottle until the air above the soda can't take anymore CO2 which means theres a maximum pressure that can exist in the bottle from CO2 ( this process takes a long time under normal conditions though). When the pressure is at its max we say the CO2 is at equilibrium because the pressure stops changing. It turns out that there's a ratio for this process so there will always be x molecules of CO2 in the air for y molecules of CO2 dissolved in liquid and that ratio doesn't change unless you change the temperature of the bottle which shaking doesn't do.
The reason soda sprays out of the bottle when you shake it is because the CO2 that would have escaped anyway in an unshaken bottle is mixed into the soda more (in the fizz) so the CO2 molecules hold the soda and take it out of the bottle with them. The other reason is that when you open the bottle the pressure drops so ratio of CO2 in air vs liquid is no longer in equilibrium and the CO2 will want to go into the air to try to reestablish the previous equilibrium. This happens slowly in an unshaken bottle (or cup) but super quickly in a shaken one because the air bubbles along the sides of the bottle help the CO2 separate from the liquid much faster.
I hope this makes more sense
@Seymour Kuntz ya but with equilibrium
And the yoda questions were the biggest “understand didn’t I accepted it but” things
It was kind of a trick question. If you open a bottle and release the gas, then immediately cap it with his pressure gauge, it'll says "low". If you then shakes the bottle, the pressure will immediately jumps to "high", just like a lot of people expects. The trick he did in the video, is that he didn't immediately shakes the bottle, but instead let it rest so then the CO2 slowly releases from the coke. That way the pressure gauge will already starts at "high" before he shakes the bottle, creating an illusion that pressure doesn't change even after shaking.
@@nggdowt Not really a trick, a freshly bought soda bottle from the store (which you can reasonably expect to be at equillibrium) will still explode ergo the reason for exploding soda after shaking is not a sudden increase in pressure.
nobody:
that small fly on his finger at 5:24:
* I'm speed*
The fly was waiting to go right through that ring as it was dropped. That fly was the double for Tom Cruise in Top Gun.
That fly doing circus performance.
* deja vu starts playing *
Nice observation
Hahahahah!!!
I am now coming back to this video 6 months after originally watching it because I bought an ice cream today & had it in my car & as I was about to turn the cold AC on the ice cream I remembered this video & how the cold actually speeds up melting so I left the AC off & ended up with no mess in my car, thanks Derek!
Very cool! Thank you!