Spinning Euler's Disk in a Vacuum Chamber—Will it Spin Forever?

In this video I put spin Euler's disk in a vacuum chamber to see how much longer it can spin in a vacuum compared to spinning a Euler's disk in regular air. Watch this amazing disk that seemingly never stops spinning!

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DISCLAIMER: Any experiment you try is at your own risk

[anshugahire]

In the beginning: 85s
In air: 1m 28s 31cs
In vaccum: 2m 38s 2cs
Video: 6m 53s

Total spinning: 8500cs+8831cs+15802cs=33133cs
Total video: 41300cs

Preciously, 80.2251816% of his video is just spinning.


People in comment: Wow he changed his profile picture.🤦🤦

cs: centiseconds or 100th of a second.

Edit:
1. Fixed the ms error.
2. Added the beginning spin.

[KnightSlasher]

Don't let that distract from the fact the the action lab changed his profile picture.

[faiazgerrard]

beyblade battles are gonna be fun in vacum chamber

[steadfasttherenowned]

You really need to find a way to spin the disk with the same force every time to really measure the difference

[leoloeki]

*You spin me right round baby right round*

[maciejp]

A true experiment-ator would make 100 tries with air and 100 tries in vacuum and calculate the averages

[suborgtfo.]

When Action lab Changes his profile pic..
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.
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*[EVERYONE : VISIBLE CONFUSION]*

[josephseale]

An interesting fact about gases is that when you draw a vacuum, the gas density obviously goes down, but the viscosity of the gas does NOT. This is because, as there are fewer and fewer molecules or atoms per-unit-volume, the mean free path increases, and this increases the average per-particle rate of "self-diffusion" and related transport of energy and momentum. Viscosity in a gas is due to momentum transport. The viscosity finally does go down on approach to near-perfect vacuum, but only when the mean free path approaches the dimensions of the confining geometry, which is a really high vacuum. Both viscosity loss and turbulent energy loss (which depends on both density and viscosity) damp the Euler disk motion, and with increasing vacuum the turbulence loss declines, but the viscosity effect remains, at least with a practical "fore-pump" and without a super-high-vacuum diffusion pump, along with plenty of time to evacuate the chamber and some way to launch the disk in the established vacuum. And of course, the plate sends vibration to the container and into the environment, so that energy loss is hard to minimize.

[coriscotupi]

The vibration from the pump might be affecting (for better or for worse) the disk's rotation time. It would be nice to have a means of starting the disk inside the chamber with the vacuum already set, with the pump off, so it would not be affected b vibration from the pump.

[FokkerBoombass]

Here's an idea: Music box inside a vacuum chamber. The point is that a typical music box design uses a governor to manage the rotation speed of the drum. This governor works off air resistance, so the melody should in theory gradually speed up as the air is removed. And you should still be able to somewhat hear the music box through the vibrations transfered to the chamber walls.

[sumtingwong]

Action Lab is the best channel on YouTube.

[xavierramage]

Can we do this same experiment but using ice as a surface with a very low amount of friction

[agentsmith_]

Being a Action lab subscriber since 2017, I never regretted my decision of spending countless hours watching videos which I found relaxing .
Thanks man, Keep posting new videos . Because of you , I can see practical of theory taught to me . 😘😘

[ImapatriotUSA]

675 comments but no one mentions this: As it spins, some of the KE is changed to acoustic energy as well as thermal energy. Even in the vacuum chamber he set up we could hear sounds from the vibrations of the spining disk. This was due to the contact between the disk platform & the vacuum box. Energy is conserved but is transfered (as acoustic & thermal) so the disk will not spin forever. The closest to achieving a "forever" spin is to spin the disk in space far away from any massive objects without using the platform.

[tobiasweber]

can you spin one of these magnetic spheres (like a globe that stays suspended in air) in the vacuum chamber and compare it to the spühere spinning in air?

[StarShootex]

Don't let this distract you from the fact that there are aliens in Area 51

[bazookallamaproductions]

dear interwebs. perpetual motion is NOT POSSIBLE. GET THAT THROUGH YOUR HEAD.

[solotron]

It not only has the energy from spinning, but the center of mass has dropped, converting that potential energy into kinetic energy.

[ENCHANTMEN_]

1:03 it does accelerate slightly due to the change in potential energy as it lowers itself, but I suppose that could count as being part of the initial spin

[gokussj]

Want to spin it forever ? Remove the gravity!


It may stop after a long time I think. Due to But still impressed by the video and with the new profile pic! Have a great day!