Gravity-Defying Coin Takes 2 Minutes to Tip Over-Euler's Disk
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- Опубликовано: 3 окт 2018
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In this video I show you something called Euler's disk. This is a disk that has very little rolling friction. I talk about the reason that it does eventually fall over vs what most people would assume the reason is-gravity.
WARNING:
If you use the information from this video for your own projects then you assume complete responsibility for the results.
My Other Channel:
/ @actionlabshorts
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Развлечения
If it doesn't fall over, it's a dream.
Inception
Dżejson Pawulo yes
Nice reference
Patrick S, lol, wtf.
Simpson’s
now put it into vacuum(negate air friction), make it 1.5 times bigger and put it on ice. grab a snack, and watch it roll for eternity.
Vaccum and ice?
Use blue ice its more slippery
*m i n e c r a f t*
gentlebootman please
r/woosh
Me: spins a glass coin on a mirror
Physicists: "GET ON THE GROUND! Perpetual motion has been banned on 46 planets"
Most under rated comment😂
@@brettunderwood1568 thanks :D
@Ionic777 millions is an understatement. There's an estimated two trillion galaxies in the universe (theres probably a hell of a lot more)
Two trillion galaxies each with roughly 200 billion stars on average. It would require orders of magnitude to describe how many planets are in the universe.
There's roughly 10⁴⁰ estimated stars in the observable universe (that's ten with forty zeros).
@@jdkhaos4983 even trillion is too less, instead of trillion i would have used *Zillions*
@@jdkhaos4983 no, I estimate that in the Observable Universe, there are about 1×10^24 to 2×10^24 stars and in the Unobservable Universe (if the Universe was a septillion time wider longer and higher) around 6×10^98 stars.
3:33 That sound is just so satisfying.
6:22 Even more satisfying.
His woah at both these times sound almost the same
@@spicyice1012 yea😂😂😂
@@spicyice1012 he crop > duplicate and > pasted the audio clip.
WHY AM I SEEING THE 6:22 TIMESTAMP IN EVERY VIDEO AHHHHH
ASMR for me😅
How to win every game of beyblade
What if the opponent spins their beyblade on the same surface of material that you're using?
Omg I never thought of that lol
Mr.Cringe Kid 😂😂😂😂🤦🏾♂️🤦🏾♂️
Lol
HOLY SHI-
"Honey? Why is my mirror all scratched up?"
"For science!"
It's not a normal mirror. It is specifically for the disk and is slightly concaved for a reason.
John Hernandez it’s a joke
"I was testing the purity of several batches of street cocaine...
...for science"
Its very hard to scrath a real glass mirror
@@ghost_animates7926 Excuse him for pointing out a pertinent and interesting detail.
4:20 : my uncle laughing at his own joke
Lol
LOL
nice timestamp
It's weed time
Lol
It would have gone even longer if the mirror wasn't moving.
Yeah. Double sided tape to the table and add a few more seconds.
the coin gets dizzy and falls over
No it's...
BECAUSE I'M BATMAN
@@zerodeaths6710 you ruined it
@@boobyg9938 I know, that's what l'm here for😇
@@zerodeaths6710 you just turned the tables. Youre a legend.
@@boobyg9938 😎
DID i JUST WATCH A COIN ROLL FOR 2 MINUTES STRAIGHT?
SHOT!SHOT!SHOT!SHOT!SHOT!
stop screaming plz =|
Yea you definitely did
Sadly i watched it twice.
Yes yes you did i also just wasted 2 minutes of my life...
Imagine you're a thief then you break at someone's house and stumble upon this.
I would steal it
Break it that unsatisfying
'Hey guy check it out its just vibrating like it has battery power in it'
'Woah'
Just watches the dude for an hour before walking out silently
Next morning police report: Robber caught playing with a coin and mirror all night and now arrestes for trying to rob the house owners.
Newspaper heading: Science saves man from robber
Her: that didn't last long
Him: 3 seconds omg yes new record
Well, next time they should try a bed instead of styrofoam
He knows soooo much but doesn't know how to spin a coin. 🤣 Holding the coin on its edges would produce a much better spin than by holding the sides.
@@billbrown994 umm I think you missed the joke idk
@@triples4783 I am only referring to his spinning abilities...i think you missed the import.
@@billbrown994 ah yes I seem
*Who else is sliding down in comments to find* *who has the best joke for this scientific video?*
Ahah..🤣 it's all u🤣
Dammit.. 😁
Dammit
Definetli me😅
Yeah and I think I got the one
**physics has left the server**
😂
( *Tk The Killer Has Entered The Server* ) TK: "lol nope" ( *Tk Fucking Destroyed The Exit Button* )
no
@@kylaxial yes
(Physics) -0 divided by -0 error
3:33 am I the only one who thought it sounded like a car revving its engine?
Me too
Yes it was like VRRRRRRR
Yeah like a v8 or sth
Yes
I thought a Hyperactive Pac Man.
5:15
My adult self: wow that’s impressive physics
My child self: *omg I’m gonna use this to power my spaceship*
6:15 Yep. It’s Confirmed.
STICKY WICKY
NASA where u at?
I literally thought of that...hahaa
3:33 - 3:37 sound better.
Sordof like a v6 gasoline engine
510th like
Considering the flexibility and instability of the mirror, I was somewhat surprised it went as long as it did. A disk similar to the one you used with much sharper edges and a more stable platform, such as polished granite or heavy glass, especially with a non-stick compound, would be amazing to just watch. Higher rigidity and lower friction should be the way to go here, definitely. A laser etched image on the side of the disk and some directed lighting on it would probably be a very popular video.
Dan Bingham now Harvest the energy
Yea you should just make this video instead of giving everyone else the idea to do it
Sure thing. All I really need to do this is a camera, machine tools, time, the ability to walk, a few hundred dollars minimum, and laser etching gear. Of this, I have less than none of it.
Jonathan Sayle its an idea douche lol
He was making a joke, Aaron.
"do you know why this coin stops spinning?"
"Friction?"
"Now you might think it's gravity"
"No, friction. I think it's friction"
"Well the answer might surprise you, it's friction"
"That didn't surprise me, I already guessed that right off the bat"
deanmoncaster congratulations. Your understanding of physics is above that of a 10th grader’s
@@bomorgan138 I would send you a link to the description of sarcasm. But I guess that may go over your head.
You obviously took that comment pretty seriously. My deepest and most sincere apologies.
@@bomorgan138 no, but chances are you're a yank and yanks don't get sarcasm.
That last sentence is what ruined it
"It sounds like a spaceship taking off or something "
I think you have explained an Alien Energy Generating Technology
Lets call it the AEGT effect
AEGT sounds pretty bad
Normies: *Euler's disk*
Me an intellectual: *_"big boi beyblade"_*
WHAT THE HELL TODAY I FOUND YOU AND WITH AND WITHOUT (also justin Y)
You are not the real one and only.
hail the guy without a mustache, he wins
Why are you everywhere???
Cool half mustache
Bro, you're spinning your coins wrong
What?? lol
2 hand spins are longer uwu
yunno he has to start the timer
@@CriticalAdventure he can do a 2 hand spin, start the timer, then just add a second
you wont be exact and you never know exactly how many seconds was the time between the time the coin was spun and when he started the timer
My 2 year old sat down and watching this video. He was mesmerized lol. Gotta start them smart young!
Well shit guys. I didnt have action lab growing up so I turned out dumb. All I can hope is he does better xD
I thought that said *gotta smart them young*
@@TALKINGtac0 nah its says "gotta start them smart young"
Awww furure economy slave.
M
You should've oiled the glass.....
.
.
.
.
*YOU SHOULD'VE OILED THE GLASS!!!!!*
i was going to comment that same
I think it would be worse, bc it would have more friction
@@pezni3481 lmao what
@@niki5354 its a liquid, so it got more friction, if its a tin layer it would be better I think
@@pezni3481 that is acctualz yes
Imagine putting music in the background and talking while this thing spins
Gravity is pushing it down and also that force is creating friction.
You are correct. No gravity no friction, my clarification is that at is friction, caused by gravity, and not just a downward force that stops the coin and pendulum. If you only thought that gravity was the thing stopping it then you would forget how different surfaces with different friction factors affect it.
No I know that it's friction too, but as you said, no gravity no friction. So I think gravity is the main reason anyways.
@@TheActionLab There is still friction without gravity. Even in a vacuum.
Gravity in Earth is the cause of friction in this scenario, but really anything that causes the two surface to contact will induce friction. If it was a magnetic field pulling it down, there will be friction regardless of gravity. Gravity isn't the main determining factor since any downward force will achieve the same result.
@@neurofiedyamato8763 Air friction plays a substantial part of this as well.
Would it wobble for longer if you put it in a vacuum chamber on an oil-coated mirror ?
Awesome video too !!
Maybe, but how would you spin it in a vacuum chamber?
Spin it and turn the vaccum on real quick and hope it stays spinning?
build a vacuum chamber with a hard-rubber glove attached to it . So you can stick your hand in it and tamper with anything inside.
I didnt describe it prefectly, but i hope you got what i meant.
something like that: www.google.com/search?client=firefox-b&biw=1920&bih=966&tbm=isch&sa=1&ei=8Vi2W8KUD4fTkwXd356IBA&q=sterilized+chamber+glove&oq=sterilized+chamber+glove&gs_l=img.3...49188.50139.0.50220.6.6.0.0.0.0.196.484.0j3.3.0....0...1c..64.img..3.0.0....0.f3Rm94ob014#imgrc=UF_g_M6Ms2vMRM:
@@user-we6lw3ff8m when you said "with a hard rubber gloves attached to it" I understood instantly 🤷
The whole video I was thinking, "what about in a vacuum?" I think that's so crazy how air friction is basically negligible.
Scientists in 2000:By the year 2019 we'll have flying cars!
Me in 2019 watch a coin spin for 10 minutes in awe that was created way way way back
Scientists in 1990: By 2000 we'll have flying cars.
But for object to wobble on frictionless surface forever it should make no sound nor produce heat in order to conserve energy. So you'd have a soundless wobbler.
Soundless wobbler...lol
Sounds like a Monty Python character.
Adrians Netlis friction causes the sound and the heat, if frictionless surroundings were possible then there’d be no problem
And a never ending wobbler too
@@brogant6793 Actually is the vibration of molecules that causes the sound.
I have learned more from this channel and Cody's Lab then all my years in science class. I now watch with my 3 year old granddaughter. I love the RUclips content and no longer subscribe to cable tv.
wait till you realize the earth is flat and all the other stuff you will learn from that. But you won't learn it on those 2 channels.
@@knowledgewillincrease7508 Cody's lab has disproven the flat earth theory by using a simple telescope and trigonometry.
You leaned from a guy who said scientists concluded that air friction dosent factor in the slowing.... that would be against newtons law.......
true dat!
@@peterstark5775 He made it quite clear that it wasn't a MAJOR factor, but is still a factor. He even mentioned that when it's "spolling" has gotten very low to the surface that's when it plays a bigger role.
To see the coin spin: 4:14
D!ng or vsauce explains it much better.
Can I have a woofle
Friction, gravity, momentum, air resistance, and a few other things play a role
No, it the wind
So did the giant coin land on heads or tails? Surely that's the most important question you should answer when spinning a coin.
Darren Gladwin someone is asking the real questions here!!
You flip a coin for that though
But that is decided way before the spin stops, and even beforr the moment the center of gravity tips over the edge.
Sooooo. Why does the title say “Gravity-Defying” when clearly gravity was present and applied.
jovanni carlos shit, you right
Probably because the videos about friction and not gravity... it stopped because of friction, not gravity, therefore it 'defied gravity'. Lill wee baby pun.
Gravity does not affect the rotation of a "falling object" because the coin falls towards the center of the earth the only reason gravity affects the coin is through increasing the friction.
Thta, my friends, is baiting the clicks to be attracted to the video.
@@wraithe85 wrong.. Without gravity, there would be no friction.. Without gravity to pull It back towards the mirror, the coin would bounce off of the mirror out towards outer space..
5:42 HEY MY EPILECTIC FRIEND DOES THE SAME THING , DOES THAT MEAN HES FRICTIONLESS TOO?
Sarthak G this is very cursed but i like it
Ikr
6:25 The Sound is so...
I Don’t know!!!!!!!!
Orgasmic
Zooooop
Two of my friends did some cool research on this for their undergrad project. They were pushing for it to be published too but they didn't have the time to edit their report in the end.
The physics is super fucking interesting when you get in to it. A confusing mixture of rolling friction and kinetic friction.
Something I'm intrigued about is the 'chirp' you hear in the final couple of seconds. It's called a finite time singularity, it shows up in all sorts of places, notably the fairly recent gravitational wave detections. The frequency of the black hole/neutron star orbits (and hence the frequency of the waves) increases very gradually as the orbit decays, and then in the final moments you get this rapid increase.
It turns out, the frequency approaches infinity in the final moment before the disk stops spinning.
Wow! I haven't said this in decades, but, buddy, that is far out!!
Approaching infinity, and therefore, by Einstein's theory, approaching infinite mass, right? So maybe that final micro-nano-second of speed is what finally drops the curtain.
What would happen if you use some type of lubrication on the mirror would it spin longer please test this
Do not think that would help, but using bigger glass and attaching it firmly to surface below, like on a huge piece of rock would help for sure, the mirror wobbled on the table a lot and there was big energy loss.
Lube would introduce "stiction" - where the edge would have to break free from the tension of the lubricant. Perhaps with an extremely thin and light layer. Maybe.
What would work better, I think, would be a much harder, stiffer and smoother (highly polished) surface. A glass mirror is not ideal. Notice how the whole mirror flexes (due to its plastic frame) as the coin spins. That's energy lost to "bending".
A thick slab of very hard steel polished to perfection would yield even better results I think!
There is a Japanese video on YT where the challenges machine shops in a sort of competition to make the longest running spinning top. They end up with using very hard steel to get the longest run times.
Spinning on ice would be better
@@limcheehean I think if you did that the friction would it cause the ice to melt in the friction Zone where it is spinning and it will build up more and more water and more more friction just try rubbing your finger back and forth on a block of ice and it will slowly get very wet and you start splashing water everywhere
GENIUS!
Who came here because of that "euler disc" on their recommendations?
Me.
HEY VSAUSE MICHAEL HER
Yes
I'd like to see how fast it spins. I wonder if you could use at bit of reflective tape and a laser RPM counter to measure how fast it spins as it gets closer to drop.
I know it's a late reply, but that would be a very disappointing result, because the coin actually doesn't rotate that much. It's the constantly accelerating change of the contact point on the very edge that we hear. The coin actually rotates relatively slow around the Y Axis, it's the contact point that changes increasingly rapid. You could Not measure that with a reflective tape, because the tape would be attached to a fixed point on the coin, and, as I said, the coin rotates slowly.
You would need something like a two-dimensional, planar pressure sensor to keep track of where the contact point is, and that would be a very quick rotation on a circular pattern.
yea its not spinning fast at all, its just wobbling fast :D
Some energy is lost due to sound created so it would eventually stop spinning surely?
The Young Filmmaker sound is created by the air and since this would be s a form of friction you wouldn’t have air
Yeah, but that sound is due to friction, so if you reduce friction, you reduce the sound, until there's no friction and therefore no sound (hypothetically of course)
He should try this experiment in a vacuum - there would be no energy loss due to sound!
@@ksp-crafter5907 no because most of the energy is lost due to friction. and even if he would put it in the vacuum chamber, it is almost impossible to have a frictionless surface.
But there would still be no energy loss due to sound generation! ;-)
I love the sound of that thing spolling!
Nathaniël would be great if he shut up and didnt remind us its spinning every 3 seconds
I'm pretty impressed by the fact that he can spin the disk with 1 hand while simultaneously pressing the button on his phone to start the timer with the other hand.
3:34 sounds like a UFO INVASIONS
Him: “spins coin 1 whole second later starts timer
Galaxy World42
*ends timer a whole 2 seconds after it stops *
Wow it's almost as if he doesn't have lightning-fast reflexes
@@santiustelive yeah he has bad reflexes not superhuman
@@shebahammy and cant spin a coin properly😂
@@altonb93 You're seriously crying with laughter at your own comment wow, smh.
I remember when you used to be called “Hydraulic Press Action” and only had a few thousand subs. You’ve grown so fast and deserve each and every one of your subscribers!
I forgot he used to be called that! XD
UnderTale The Human lol
I remember too
@@hugo511 I guess I don't have the best memory :P
-Also, your username tho. 👌-
UnderTale The Human 👌
There is something incredible with RUclips's algorithm. When I was studying black body radiation it brought me that from The Action Lab. I was studying rolling friction in school and I got this in recommendations.
Action Lab videos make my understanding really better
Thankyou 🙏
@1:23 "- so I'm gonna give it some initial energy..."
[Mentally computes friction power, required power within ± 0,0000001 W. Duration: ~1,5 secs]
"- And it eventually.. stops."
*Tape gently stops at 0,01m from table's edge*
👏👏👏
4:19 I love this sound
Someone edit in a DJ to this
Vijaya Dixit no
I want to see this on ice
Celebirties on ice and now spinning metal discs on ice...
......like the Ice Capades a little too much, do ya?
The initial energy given to the coin (how hard you spin it) does play a big role in how long it spins, but regardless this is was a great demonstration.
Ohh ok
1:26 "It eventually stops", then he edit and stop it himself
Scientists dont want you to know that duct tapes can roll forever.
Try this in a vacuum
Yusssss
I don’t think it will fit in a vacuum it might get stuck in the nozzle
Yeah
He literally just said it's not any different!
@@mrooney25 you do know he doesn't mean a Hoover?
2:39 Thats what she said.
That Gamer1407 ROTFLMFAO
You're probably mistaken her gender... oh wait....
nvm
And 2:14 hehehe
@@earthwormsally2954 whoosh
Damn, literally wanted to make this comment lmao.
I used to do this sort of thing using a tungsten loaded doorstop on a counter top. The noise, particularly towards the end used to drive the boss mad! Incredible!
Nice correlation to friction as a way to explain this phenomenon. Excellent video!
0:33 no? no one thinks its because of gravity. Friction is what everyone thinks it is
As well as the unbalance of the object
I think it gets tired and naps a little.
Ikr
Except for the fact that friction only exists because of gravity
Jonathan Sayle No.
Gravity is a part of the reason it stops... and air resistance, and friction...but my point is gravity is still a part of it.
true
not really gravity causes the phenomena that stop the spin but if the surface was friction less and if there was no air it would spin forever
gravity alone wont cause it to stop, it literally have 0 effect on how long it will spin for
they should see how long it spins... in zero gravity... with magnetic bearings... in a vacuum... take bets? lol
@Pinochet Pilot #666 gravity, in this case is the only reason there are frictional losses, thats the only way it effects this, without friction it would never stop
Absolutely brilliant... So in the absence of any rolling friction, an object will spin for ever... guess that’s why planets spin for ever... but it doesn’t explain why some planets/ moons don’t spin...
I love your experiments! Good stuff!!
Someone please edit in a car 3:35
lol
Lmao I thought it was edited to sound like a car at first
Can i put a moving....
*THANOS CAR*
*THANOS CAR*
xxxavier oh yeah yeah
Or motor cycle
Put some oil on that bad boy
BatuhanD147 ya then light it up
BatuhanD147 *slaps the coin* This bad boy can spin for over 2 mins on glass
he sounds like Beavis and Butthead's teacher... 🤣
Damn, he does.
Ah that sound at 3:35 is so satisfying.
Now I remember that one episode in "The Big Bang Theory" where raj tries to hold his breath.
His favorite movie is The Princess Bride.
@@Chigger He doesnt like Indian food (I quess this has tured into "Who Knows Raj Better". Lol)
Raj is Indian.
Irony's great, isn't it?
@@brokengbax420 No. The princess is the bride, hence the title of the movie. If you haven't seen it, I highly recommend it.
Try heating the steel coin a little then try to spin it.
😂 The answers to questions I never knew I had..
Great vid as always
It would be awesome to see this done on an enclosed magnet surface (to avoid the coin to fall out of it, and see how much longer it would keep spinning without decreasing motion due to friction.. AND... Record it on a high speed camera with a close up to see it in slow motion... That would be awesome 😎!!!!!
6:18 is this the Predator's space ship getting ready to fly by?
@Matt McClay R/wooosh
Corbin r/woooosh? Tf is that XD
Yes and you are the predetor (sexual)
Bradley Gleeson r/woooooosh
Corbin r/whoosh to you sir. That was a "is this the Kristy crab?" Joke
3:37 and 6:26 woah ho ho
They both kinda sound the same. Illuminati confirmed?
😂
Nicely caught. They are identical.
Moneymaker sr
Exactly the same
I could watch the disc keep going on a series of ever smoother surfaces for kicks.
Ice
This was the first Action Lab video I ever watched. I'm revisiting it :)
Now! I am addicted to this channel
😍😍
You going to be misunformed than... if you belive a guy who said that scientists concluded that air friction plays no part in slowing object.... thats against fundamental laws of physics.... pls dont be a sheep
What will happen if you put a mixture of polyethylene oxide and water on a sieve will it just go through or will is stay due to its long monecular structure
Dora The peanut ur name does not fit with your words
@@ieatnapkins9225 I was just going to say that
What about peanut butter?
Gravity is creating friction on the table as well as air resistance and a couple more variables. So yes gravity isnt the reason they stop but it does play part in them!
When you flip a coin with a friend of yours like this your friend will probably already have let you win the bet because he’s tired of waiting
Ok Physics, so what do you want to-
*Physics left the game.*
Really Physics!
Your changing 2 variables. 1. The surface. 2. The speed of the spin. UNRELIABLE DATA.
*roughly science* I think you can also get a better spin by using two hands to spin the disc. I wonder if the ratio would be the same using the two handed method
The point is to change the surface for further investigation
The principles are right though. 🤨. Your going to deep into an example.
different surfaces have different friction, which is what he talked about before
plus the speed of the spin doesnt have anything to do why it stops spinning. spin a coin similarily with one hand and you get practically the same results for how long the coins spin. he didnt intend to spin them at different times and he was using one hand to spin the coin with the other hand to start the timer anyways.
True, but even observing the different RPMs just with your eyes, you can see they aren't nearly different enough to result in times as different as 3 seconds, 40 seconds, and 2 minutes.
The experiment is so great, and satisfying...! :-D :-D 👌🏻 👌🏻
7:12 anyone notice that the disc moved by itself?
FAIRLY ODD PARENTS
It's because air under it.
The mirror isn’t flat.
R/wooosh
there is also a cut in the video
@@FragNadewhat did it do wrong
6:10 *Coin.exe has stopped working*
i replayed the video when the thing was spinning on glass but this time with sound muted and the music 'you spin me right round' to make it more epic
1:38: If body is accelerating forward , the rolling friction will also be in forward direction.
@1:38: It's actually de-acceleration and friction direction is correct.
Fidget spinner : you stop spinning once you hit anything
Euler : hold my eulers disk
A visual representation of the my brain listening to baby shark.
of the my?
...you really need to start saying no to drugs.
eddie?
*So Euler was too Alpha to have regular change in his pocket...*
2:40 that's what she said
This was the coolest thing I saw for a long time :D
Satisfying sounds: 3:31, 5:11.
Thank you
Also 4:19
It's sounds like a chipmunk fused with a bey blade.
Try it with ice 😅
The ice would get a thin layer of liquid water on it, that would slow the move from suction (linked to surface tension). So it may not do better than glass. I'm wondering about Teflon, since it has very low friction, provided you can get a polished surface of it.
I was joking
Maybe try it on dry ice, although condensation might also make it wet though.
Might work if the ice is in the freezer. Also using a coin that has been in the freezer so that it's cold, too. That way, it won't melt because of friction as fast.
@@limcheehean but dry ice doesn't condensate it sublimates back into to carbon dioxide instantly
6:02 metalcoin.exe has stopped
working
*Hey,Physics is really is just a theory-
*A GAME THEORY *
I was expecting the glass to break...
Can you perform 'talk to plants' experiment?
Best idea ever!!
This is not an experiment that could be done in his style. It'll take several days if not months with several different controls and several different stimuli applied for different amounts of time at different intervals in order to see if anything makes a difference. That's hard to do in a ten minute video.
4:20 whenever the games about to start and mom wants me to clean the window
kitchen product manufacturers: I'll take your whole stock
The new fidget spinner??
No stop
Sherman is Watching i agree
Just no Ilman just no lol
Imagine how it'll sound when a lot of kids are using this thing in class.
Axicity Oh gawd
*Friction and air resistance...*
I prefer to call it Drag and treat it as a separate force from Friction. Nature doesn't mind.
Anyway, he said the air has a negligible effect in this situation and that in a vacuum it stops after about the same time.
Me: I went to the kitchen at 3 AM.
Glass: *start dancing*
Me: gravity
Already seen the Euler's disk on Grand Illusion channel, but always gets me with a "wow"