Do Lego Wheels Spin FASTER in Vacuum?

I tested a few different Lego wheels in 70% vacuum. Enjoy!

The answer to the title question:
Yes in general, but it depends on the wheel size and balance. The best speed improvement was from 5100 RPM to 7000 RPM which is a 40% increase. Some wheels didn't gain much as they started to vibrate in high speeds. The smallest Lego wheel didn't spin any faster in vacuum.

[AwesomeDomi]

Definitely makes sense due to less air resistance, I was just waiting what you would use the vacuum from your last video for :)

[shottysteve]

so cool you used the lego vacuum pump too haha. its like you can make a whole set of tools out of lego to do more tests

[biomerl]

Things I never wanted to know but now
really want to know.

[KIMG]

I definitely expected the paddle-esque wheel to see a big improvement, and it did!

[techmouse.]

It seems like an unstable axle could be the biggest RPM killer. So what if the axle had a stabilizer on the other end?

[inexistentspecofdust]

The craziest thing is that this is made almost entirely out of lego

[vertujoe]

nice experiment! Good demonstration of air drag on different wheels.
Could you please make an new episode about how Lego propeller spin in vacuum chamber. That must be very interesting.

[Silencer]

Those differences were larger than I expected.

[puzzLEGO]

the paddle one makes the most sense, it literally has to push so much air each revolution. Also I kinda liked this shorter video, you could do some actual youtube shorts

[MultiKombo]

How about doing the opposite and fill it with more air?

[Flynnsomething]

1:15 the way that wheel expanded from centrifugal force ( 0-0) thought that thing was gonna come apart.

[Reth_Hard]

Huh... Are you planning on building a satellite entirely built with Legos?
It strangely looks like a reaction wheel they use in satellites.
(It wouldn't be too surprising from him... lol)

[sage]

it makes sense, altho i wasn’t expecting that large of a difference! the wheels aren’t really displacing any air as they rotate so it really surprised me that you gained nearly 40% on that first test!

[yogainstructor]

I love how his vaccuum creator is made of lego

[aureluck]

Is it just me or does this Channel make you want to buy some Lego?

[BenjBuilds]

When you brought over the contraption from the last video to make a vacuum chamber I was like… “this guy is a genius!”

[n-ds]

Do you get a difference between inside and outside of the glas at 0% vacuum? I could think that there are different kinds of turbulences.

[jimspeed]

It wasn't a question that had ever really crossed my mind but i'm glad I know now and proven with Lego.

[DoggosAndJiuJitsu]

Yes. No air resistance. This has been a long-established fact of motion.

[TheRainbowKiss]

He’s testing the wheels in a vacuum to build a moon rover