Spinning Wheel on Spinning Chair

[@marlonhernandez7274]

This would not have been possible without the confident and firm hands of that assistant, to him I say "thanks!"

[@RayBelizean]

Marlon, though this was posted many years ago - I was hoping you could answer a question. If the angular momentum was EXTREMELY HIGH would it be possible to rotate yourself sitting on a char that is not a spilling chair? Thanks!

[@shadeyfang8564]

Ok Marlon

[@shmerox7683]

@@ZA-ui1sv Z A, though this comment was posted weeks ago i want to ask you something. *What* is babby formed?

[@joshuaperry4112]

"confident and firm hands". I bet that's in his Tinder profile.

[@yoyoyo7083]

Why does the assistant remind me Mr. Incredible at his workplace? 😅

[@Saccillia]

this is the most fun physics experiment I have ever experiences and I wish I could do it again.

[@rhiannonv9183]

I genuinely cannot fathom how this works and I just learned about it in physics

[@indiomoustafa2047]

It just works.

[@gabrieli6008]

Air has mass, and therefore can be repelled off of.

[@indiomoustafa2047]

@@gabrieli6008 No. This works in frictionless environments too, eg outer space. If this were true you could demonstrate this even better by putting paddles on the wheel, but it would have a negligible influence compared to the extra weight from the paddles. Thats why they don't, its not necessary and it might confuse people.

[@I-C-Y-U-N-V]

@@gabrieli6008 it's momentum not thrust

[@gabrieli6008]

@@indiomoustafa2047 Oh shoot shows how much I know

[@UnforsakenXII]

He smacked that fucking wheel, lmao.

[@moneer7139]

Lmao

[@indiomoustafa2047]

Dirty, slutty wheel.

[@Boomer8003]

He smacked it like it was his wife’s ass

[@ghfhgfuuu]

Naughty wheel.

[@cellocraze]

That assistant deserves a raise. There was dedication in that spin.

[@jonnupe1645]

A Spinning wheel, held by a man on a spinning chair, who lives on a spinning planet, that resides within a spinning solar system, that is spinning around a supermassive blackhole at the center of the milky way galaxy. I like spinning chairs.

[@imagomonkei]

I'm spinning, da ba dee, da ba die, da ba dee, da ba die, da ba dee, da ba die, da ba dee, da ba die, da ba dee, da ba die…

[@jonnupe1645]

@@imagomonkei THAT'S WHAT I CALL A MAN OF SCIENCE!

[@itsthatsebguy93]

I feel dizzy...

[@indiomoustafa2047]

Thats like, a lot of spinning.

[@nOT_sURE08]

Add one more spinning factor and the universe will collapse.

[@JUJITSOO]

Always liked going to classes where teachers teach like this

[@Physics072]

Nice job! You are the only one that demonstrated that you can flip it and rotate back. Most will flip it and not rotate at all as if it can only stop but not reverse the rotation. Even MIT blew a demonstration on this.

[@sandercohen5543]

This is basically what a reaction wheel in a spacecraft does: Because there is no medium in the vaccum of space that provides any meaningful force when pushed against, in order to rotate without expending mass, we use the inertia from weighted, spinning discs, that are rotated using an electrical motor.

[@tx_l]

I think this method is good for maintaining free rotation or creating rotation for astronauts or spacecraft to reduce the use of the RCS system, which consumes a lot of oxygen. As seen in the movie Gravity, she could not control her rotation.

[@orrbugger]

This is why helicoptors have a tail rotor. To counter the spinning effect that the main rotor has on the body of the aircraft.

[@danieltoledo9383]

The invisible link between the spinning wheel and the motion is what gets to me. I understand there are two wheels in motion counter rotating, the chair and the wheel, but it baffles me that somehow work is transmitted without a linear tie in. Cool video!

[@inflintity]

This is precisely how satellites make attitude adjustments. Angular Momentum & Tourque = Cool

[@rockerseven]

The original fidget spinner.

[@bobobaggans6871]

...what a interesting 'spin' this puts on the situation, i play with this one cornering my motorcycle... fascinating ...

[@blakepowers3123]

That's so cool! It's simple but it's cool!

[@darkeyediv5687]

Cool.... Awesome.... Yeah I know... Until you see this in the physics paper

[@UweWong]

can you do one more where you spin yourself and see if the wheel spins in the other direction you are spinning to compensate?

[@herbert7344]

If he spins himself, it means net torque on the system is not zero, so no, it won't

[@felulaval4742]

@@herbert7344 this is what I don’t understand. So does it really make a difference if you spin the wheel yourself? Other demonstrations of this show people having no rotation at all while the wheel is spinning in one direction and then rotating really fast after flipping it. Other clips like this show being able to turn freely in both directions

[@Serfdomftw]

@@felulaval4742 Its because it has very little to do with the wheel itself. The turntable is just receiving forces from the person sitting or standing on it. If you are moving an object in your hands this is shifting your balance. This eventually results in you applying a force to the turntable with whatever contact points you have. E.G Your Ass or your feet. You can do the exact same thing without a wheel, and with a heavy object, or with your own arms.

[@ccllvn]

I'm confused lol

[@panteleymonschekochikhin-k1978]

Why is this so hard

[@centpushups]

That is how they turn satellites in space

[@superandreanintendo]

Yeah. Funny thing is that nasa used to make in the first years of the space race simulated 0 G flights on c47 skytrains and make cats inside bounce around to understand how they move to always land with legs. Lol

[@calrndown]

This is hella cool ! Thank you for sharing.

[@colingriffin6843]

You get a similar affect with an office chair and a spinning bike wheel. But you can stop and start by turning the wheel vertical or horizontal

[@hardware199]

Is the opposite also true? Would the wheel start spinning, if the chair rotates?

[@indiomoustafa2047]

This is the most exciting crossover event in history.

[@losluggo9307]

you spin me right round baby right round like a record baby right round round round

[@ryno488]

His assistant remined me of a crazy cat for some reason.

[@ra9788]

How can i calculate it ? What should i sub the Initial angular momentum of wheel, the value of horiztonal or vertical ?

[@bencaz22]

L_p = L_i - L_f (all in the vertical Z-axis) , where L_p is the momentum transferred to the man, L_i is the initial Z-axis momentum of the wheel (in this example 0 because the wheel's spin axis is initially horizontal), and L_f is the final Z-axis momentum of the wheel (in the video he first turns the wheel so that it has negative Z-axis momentum, meaning L_p > 0 and the man spins CCW).

[@aarongtr180]

The guy spinning the wheel looks like AVGN from the back.

[@nateross14]

So where does the angular momentum go if you rotate the wheel while its spinning but the chair spinning axis is locked so as to prevent turning on that axis and the handles are locked in place so that they can only rotate on one axis as prescribed by your arm rotation?

[@zachs5203]

Momentum would not be conserved because there would be an external force involved, which is locking the axle in place.

[@DMOND-qg2cg]

I have a question. Is angular momentum conserved here? If i think of the angular momentum vector at the start it points twoards the right but once he turns the wheel it points twoards the floor while the angular moment vector of the chair points up. So the two momenta cancel. But overall there is no net momentum vector that point to the right unlike at the beginning. So is angular moment conserved or am i missing something. Is it because he applies a force on the wheel?

[@uhmmmmmm...]

I need answers, please if u already know teach me senpai

[@uhmmmmmm...]

Help me sleep

[@DMOND-qg2cg]

@@uhmmmmmm... in this example indeed only the z-component of angular momentum is conserved because thats the only axis the chair can freely move around.

[@r.rodriguez4991]

Now I understand Space Engineers.

[@roobear5357]

Nice... You also had to use internal energy from your muscles to tilt the wheel from vertical to horizontal above and beyond the exertion that would have been required if you and the wheel had not been spinning...

[@GenXstacker]

This is a great demo, but it would be much better with a more detailed explanation of why it happens.

[@AS-ws9pp]

That is cool video, thanks)

[@Produced.by.nobody]

Your boys got some built up aggression

[@BG-bt5mv]

great visual demonstration but the explanation for new physics students needs a bit more elaboration.

[@sujen.s5710]

What happened to the initial X axis angular momentum go???

[@adamseddon2533]

It makes the whole earth spin a little bit i guess

[@bencaz22]

That change in X-axis momentum from initial to zero must impart a torque on the man about the X-axis, but I expect the friction of the man+stool against ground is too much for that torque to overcome so no motion is visible.

[@frankmyrand]

Random curiosity : anyone knows what would happen if we did this in space/ 0g ?

[@MrMichalMalek]

The same would happen, but unlike this case, the person's axis of rotation would not be fixed in any way (not restrained to the rotatable chair), so after spinning up the wheel he would immediately start rotating around the axis perpendicular to the plane of the wheel. Assuming he would keep holding the wheel in the starting position, his whole body would start rolling backwards.

[@pacman_pol_pl_polska]

I wish I was that wheel...

[@Blubb5000]

So this is how the steering wheel in a car works. Now it all makes sense.

[@toxicvillain]

I was thinking more like stealth flight, but sure!

[@jaguarenduda]

no?

[@chie970]

Yes

[@nia12]

Naruhodo e suas ótimas recomendações!

[@yuriyvasilenko2308]

Слушайте, а по-моему Игорь прав. Я сейчас просмотрел несколько видео, где люди берут за ось раскрученное велосипедное колесо, сидя на вращающемся стуле. Так вот, при изменении направления оси вращения колеса с горизонтального на вертикальное стул начинает вращаться и тут же останавливается. Гироскопические эффекты в случае с опытом Игоря действительно не при чем

[@Aisland_Shuster]

I feel like an alien watching an "Earth video".

[@ravidubey2535]

What If you turn 180° insted of 90

[@don.3s]

would this work for an anti gravity device o something

[@olli3686]

Start out with it spinning to the left and then flip it to spin to the right instead of starting at neutral

[@AirKangLocker]

I clicked on this thinkin this was the key to time travel

[@zackv3957]

Plot twist: he's using his mind to move the chair

[@Ted_II]

You're a gyroscope, Harry

[@aqsailyas9984]

Kindly explain this in detail.

[@Tracer_Sweat]

Dude what the hell that's magic, that's actual witchcraft. These are witches and wizards.

[@izacnewton5761]

saw this many years ago at the science museum in sf ca

[@neaumusic]

why does it go in that direction? just because it's a law of nature or gravity??

[@synapse0]

Gravity plays no role in that. When you spin a rotating object in a different axis, you apply a torque to it in a particular way. Torque demands force, and force changes momentum (which is conserved!). On the spinning chair, without anything holding him still to the ground, he only has the momentum of his own body+chair to give to the wheel. Thus he's accelerated according to the torque he applied. If the wheel was spun in the opposite direction (it's spinning clockwise from his right hand. so, the alternative is counter-clockwise), the way he moved the wheel would spin his chair in the opposite direction too.

[@Zawgs]

God bless you

[@w.a.bumper2947]

No one notices that his assistant is senator Armstrong

[@enricopalazzo40]

I was very good in physics in school and university, but i never saw this experiment.

[@tv_pc2311]

Bardzo fajne, można by to wykorzystać gdzieś :)

[@jaycspeedier5507]

Quality Lionels

[@sparkieT88]

1:00 to what you want to see

[@seitokimbo8900]

Now rasengan.

[@shobhitkumar98]

energy?

[@RileyTastic]

Cool

[@Pratikt2828]

Do you know weightgayne rooney

[@Beach_nvgga]

You are gay

[@Beach_nvgga]

I am zlatan

[@Beach_nvgga]

Cristianooo ronaldoooo

[@Pratikt2828]

Oh sorry for messing with you

[@Pratikt2828]

Fart butt

[@softharteddevilshd6076]

The assistant looks like the guy in Good Will Hunting who is the math guys assistant

[@pierreverso9554]

called gyroscopic effect

[@meherbabaisgod-lo8gd]

🥰🥰💗💗😍😍

[@usb6000]

This is great when they used to teach physics in Texas.

[@AdiCherryson]

Wow, another great “physics” presentation. And where did your angular momentum “around” the horizontal axis go if this is about conservation of angular momentum?

[@alexdasliebe5391]

That’s why he spun. They go explain, vs fun demonstration, here: kzbin.info/www/bejne/l6rNdGR7aNGBgcU

[@AdiCherryson]

@@alexdasliebe5391 Two years later but ok. This video is about the conservation of angular momentum and you pointing me to the video where the momentum is clearly changed/gained by the external force, namely the gravity. On the other hand in the video above there's the impression that the system is isolated from external forces (after the wheel is spun of course). But it isn't. If the same experiment would be conducted in a no-gravity environment he would be rotating around the horizontal axis after he turned the wheel on its side. This is due to the fact that "Angular momentum has both a direction and a magnitude, and both are conserved" (see en.wikipedia.org/wiki/Angular_momentum#Conservation_of_angular_momentum)

[@mr_thekid]

I don't get it! Why did the spinning wheel make his chair turn?

[@superandreanintendo]

Magic

[@syndragucunkaranlkyuzu8225]

Did you get it now?

[@willa3302]

When you consider the man and the wheel as the system, no external torque is acting on the system. Hence, Angular momentum is conserved The wheel was initially moving which means it has angular momentum, but the man was at rest so he had zero angular momentum. When the man changed the direction of the wheel, the angular momentum of the wheel changed, therefor, since angular momentum is conserved, the man will have to move in the opposite direction for the angular momentum to remain constant

[@TNaizel]

@@willa3302 if angular momentum is conserved what happens to it if he sits in a normal chair that can't rotate?

[@nicholaslee5473]

@@TNaizel You will still feel it, just that the friction from the chair which cannot spin stops you from spinning. Similarly, if you did it in a zero gravity environment you will spin.

[@warrioroflight99]

Bruh I'm to high for this

[@bully1676]

What kind of sorcery is this!

[@Lonlonthecow]

Assistant senator Armstrong

[@hiccup3.14]

Physics is fun.......Too much fun

[@low_easy]

Dark magic

[@robinhooper7702]

Ok. Give me a second to understand this. The spinning wheel now has angular momentum caused by your assistant. You explain that the momentum is in conflict(conservation of energy) with your momentum but by all visual understanding you are not moving in order for you to have any momentum. Or is it that you are truly moving at the rate of Earths' spin axis??? It is most defiantly not due to the torque that you applied when you moved from vertical to horizontal, because if that was true you would not continue to spin in your chair. All I can see is when you have the wheel spinning with gravity, all is fine, as soon as you change that momentum it is going to try to conserve, hence the natural spinning in all matter.

[@alexdasliebe5391]

They go explain, vs fun demonstration, here: kzbin.info/www/bejne/l6rNdGR7aNGBgcU

[@JamesLee-lz5yk]

PARTY TRRRIIIIIIIIIICCCCCKKKKKKKKK!!!!!!!

[@fabioamatto3969]

he looks like toby from the office

[@adeeburrahman7062]

Lmao

[@MrAnonymousme10]

Sorcery!

[@blakshema]

Witchcraft!!!

[@sharankumar2707]

wow...! is it possible ?

[@sharankumar2707]

or just a trick....

[@thedeaner3117]

Very possible. I have done it myself.

[@xMafloN]

That's just physics, you learn about it on the university when studying anything that includes physics

[@sagnikmaity1444]

This is a demonstration of friction. Nothing to do with angular momentum. The bicycle wheel just transfers the spinning energy through the bearings to the handle. Because there is rolling friction that is acting as a intermedium.

[@Beach_nvgga]

Cristiano ronaldo

[@throwawayavclubber7269]

Wrong.

[@StayMetal94]

grande

[@johnny7121]

dude, you need to get a phone or something...

[@buck_maize111]

Now watch supercross guys throwing their bikes around in the air.. this is how it's done ✔

[@okitslolay]

Er dreht auch am Rad.

[@ghfhgfuuu]

Now how can we incorporate neodymium magnets and the same theory to make a few simple machines to generate energy and all you have to do is have someone walk over and start the spinning wheel.

[@abbaruah9685]

Wip

[@michaelespinoza3726]

He looks high

[@chriswaffles6511]

🤣🤣🤣

[@deadly378]

any imgurian here

[@MrFartyman44]

Does this prove Gods existence?

[@cannakush8581]

No he's not real

[@interestingasfuck8104]

@@cannakush8581 kzbin.info/www/bejne/j3aUqoN5mqtkecU

[@Exekutioncro]

What

[@Shadow-iv9th]

Lol

[@chriswaffles6511]

a

[@FearlessP4P1]

Wtf

[@roberto_ik5640]

Wait a second... Did I ask?

[@keilitucker1293]

butt

[@plozikou]

Fake News! ;-)

[@ncuello7126]

What