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Physicists Waker Lewis explains the physics behind the gyroscope precision

1,406,930 views • 1 month ago •via X (Twitter)

36 Comments

Andrew Hardy's profile picture
Andrew Hardy1 month ago

Precession not "precision".

Daveycracky's profile picture
Daveycracky1 month ago

@helen44767171 Gyroscopic precession.

Steven M. Booth 🦅's profile picture
Steven M. Booth 🦅1 month ago

Precession not precision

B.A.D.'s profile picture
B.A.D.1 month ago

Motorcycle counter steering...

Brent's profile picture
Brent1 month ago

It's Walter Lewin not Lewis

Victoria 🇺🇸⏳🗽🚔's profile picture
Victoria 🇺🇸⏳🗽🚔1 month ago

@wickedcece315 That’s fascinating.

Michael J's profile picture
Michael J1 month ago

It's Walter Lewin... not Waker Lewis.

La pluma de Dante's profile picture
La pluma de Dante1 month ago

Why!?!?

RobLogic's profile picture
RobLogic1 month ago

Why does this happen @grok?

Grok's profile picture
Grok1 month ago

It's Walter Lewin's classic demo of gyroscopic precession. The fast-spinning wheel has angular momentum along its axle. Gravity applies a torque that tries to tip it down, but because that torque is perpendicular to the angular momentum, the axle turns sideways instead of falling. The result is steady horizontal precession around the support string.

La pluma de Dante's profile picture
La pluma de Dante1 month ago

@RobLogic Yes, but why, why. Why does the fast-spinning wheel produces an angular momentum to keep its axis of rotation still? :-)

Grok's profile picture
Grok1 month ago

Spinning gives every particle circling momentum. Their combined angular momentum L points straight along the axle. Gravity's torque is sideways to L, so it can only rotate L's direction horizontally—precession—instead of tipping the axle down. Faster spin = larger L = stronger resistance to any change in orientation.

La pluma de Dante's profile picture
La pluma de Dante1 month ago

@RobLogic Ah, ok. ¡Thanks! ;-)

Grok's profile picture
Grok1 month ago

@RobLogic You're welcome! Glad it made sense.

Phil DeCube's profile picture
Phil DeCube1 month ago

precession. Not precision.

Midnight Pie's profile picture
Midnight Pie1 month ago

My favorite part was when the wheel was turning

Shpaq's profile picture
Shpaq1 month ago

Walter Levin!

N Paul Kuin's profile picture
N Paul Kuin1 month ago

Walter used to have two different socks on. It was more artsy. He taught some X-ray binary stuff in Amsterdam many years ago.

Full Frontal Patriot's profile picture
Full Frontal Patriot1 month ago

This is the pendulum professor.

creeptolik's profile picture
creeptolik1 month ago

Does it works in vakuum (no air space) @grok ?

Jon's profile picture
Jon1 month ago

Teachers like this are pure solid gold!

N Paul Kuin's profile picture
N Paul Kuin1 month ago

Precession not precision (AI?)

The Good Films. 🎬📺's profile picture
The Good Films. 🎬📺1 month ago

This movie is a masterpiece 🔥❤️

Mantis Shrimp's profile picture
Mantis Shrimp1 month ago

precession/prəˈseSHən/

John Barber's profile picture
John Barber1 month ago

It’s Wanker Lewis

jcthe2nd's profile picture
jcthe2nd1 month ago

this is how my motorcycle works bro

Todd Kallenbach's profile picture
Todd Kallenbach1 month ago

Precision about precession

Jason Hansman's profile picture
Jason Hansman1 month ago

At the equator, you will not have that effect, These are forces of gravity, acting on other forces of gravity The faster moving outside edges travel threw time slower, therefore that difference in time has to have an energy variance and in a case of time it affects gravity, just as gravity affect time.

Jim McCabe's profile picture
Jim McCabe1 month ago

Don't you mean gyroscope PROGRESSION?

PDragonLabs's profile picture
PDragonLabs1 month ago

dude , knows how to get weight off the ground...proper...

Jind's profile picture
Jind1 month ago

Walter Lewis and NOT Waker Lewis..

mire 自律自存あっての隣人、個も社会も国家も's profile picture
mire 自律自存あっての隣人、個も社会も国家も1 month ago

ジャイロを軸受に仕込んだ 「宇宙(または地球)ゴマ」でも 同じ回転現象は起こる。 地球ゴマの歳差運動 @YouTubeより

H@ns Vledde® (Official)'s profile picture
H@ns Vledde® (Official)1 month ago

It's Walter Lewin ...

Thornton Scott's profile picture
Thornton Scott1 month ago

My calculus III professor was an old-school biker and spent an entire lecture doing the math on this. Good memories.

Eric the Coach's profile picture
Eric the Coach1 month ago

Procession

Joshua Baker's profile picture
Joshua Baker1 month ago

Cool explanation! Gyroscopes always fascinate me. 🤯

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