There's something like this at the MIT museum (or at least it was a piece there when I last visited): a gear train with massive reduction and the final gear is actually carved out of the stone that it is mounted to. It's impossible for the final gear to move, but the beginning wheels are still able to be turned.

@knownas2017

Жыл бұрын

That sounds kinda cool, tbh.

@saisubdivision3941

Жыл бұрын

Imagine aliens coming upon this wall that is slightly tilted by a fraction of a centimeter in the future

@zenith1047

Жыл бұрын

For those interested, I've found the piece: it's called "Beholding the Big Bang" and it's a bit different than what I recalled (it has been years since I've been to that museum and seen the exhibit). The final gear is embedded in concrete, not carved out of stone, and it's an electric motor turning the first gears, not a hand crank. kzread.info/dash/bejne/iHd1lNmhoLCpntI.html

@spray_cheese

Жыл бұрын

That’s really cool actually

@yun-z

Жыл бұрын

the mechanical flex of all the gears probably compounds up

Damn just imagine the amount of force you would need to spin the last gear by hand and how fast it would make the first gear spin if you spun it from the last gear

@matthewmaillette

Жыл бұрын

The whole thing would explode but it would be glorious

@Godolotl

Жыл бұрын

Assuming the gears were indestructible and you could apply infinite force, if you spun the last gear, the first gear would be moving far faster than the speed of light

@baconwizard

Жыл бұрын

@@Godolotl but as you approached closer to the speed of light, from the gears perspective, time would be slowing down which would inadvertently slow down the rotational speed of the last gear who’s torque is probably enough to lift up the whole universe.

@Godolotl

Жыл бұрын

@@baconwizard well yes, but this whole thing is irrational to begin with. I mean that gear ratio is just a "because I can" thing. If you actually could apply infinite force, I'm unsure if you could ever actually reach the speed of light due to time dilation. On the outside it would appear close to the speed of light, but from the 'gear's perspective' everything would speed up. This weird dynamic is why the "speed of light" is so odd.

@Godolotl

Жыл бұрын

@@baconwizard but, I'm not knowledgeable enough to keep talking about this subject, that's getting into general and special relativity, which I don't have the confidence to speak openly about. Perhaps someone else will figure out a explanation.

You can't spin the last gear, but what gear can you spin from to maximize speed of the first gear?

@notlistening6499

Жыл бұрын

I would like this comment but it has exactly 69 likes and I don't want to ruin that

@blades7178

Жыл бұрын

I’ll ruin it

@collectorguy3919

Жыл бұрын

@@notlistening6499 been there, done that

@henerygreen578

Жыл бұрын

you see him spin 3rd gear............thats about it

@mouse5178

Жыл бұрын

I’d have gone straight to the last gear

2:50 It's even hard to understand how MUCH BIGGER this number is. If EVERY atom in the observable universe had its OWN observable universe within it with the same amount of atoms, then the number of all the atoms COMBINED would've still be a HUNRDED THOUSAND times smaller than this gear ratio!

@TylerPilizota

Жыл бұрын

Thank you for that, my brain is malfunctioning now but still cool as hell

@nup5

Жыл бұрын

as if our universe isn't already mind blowing enough, lmao. thanks for putting this number into perspective :)

@sean2susini

Жыл бұрын

🤯

@kck-kck879

Жыл бұрын

Horton logic lol

@mrmeckles9422

Жыл бұрын

Your scaring me

I never thought I’d ever experience cosmic horror from such a small object

Last one will still prolly still make a revolution before GTA 6 is released...

@concept5631

Ай бұрын

'bout that

It would be cool to see a gearbox like this but with 2:1 gear ratios so we can see it actually working.

@danankofski5287

Жыл бұрын

even with a 2:1 ratio the last gear still would take an unimaginable time to move

@noahc8997

Жыл бұрын

Great so instead of 10^169 we get 2^169.

@kkatsuro-bl1zv

10 ай бұрын

@@noahc8997 how about 101 to 100 teeth gears? then it will be 1.01:1 and 1.01^169 = only 5.37. Am I doing this right?

Crazy thing is, if you could spin the first gear at an infinite rpm, the last gear would spin at infinite rpm too

@SentinelxPrime

Жыл бұрын

Idk about that

@turzilla

Жыл бұрын

not really because of other mechanical factors

@nazfx2648

Жыл бұрын

@@turzilla bro said not really😂😂. The first one spins infinitely so the last moves infinitely end of story. We dont care if it breaks or whatever this is hypothetical

@turzilla

Жыл бұрын

@@nazfx2648 nah we do care so not really

@XtreeM_FaiL

Жыл бұрын

It would create infinity mass black hole before the last grear starts moving.

The last wheel cant actually spin right?

@CroissantCreates

Жыл бұрын

After the sun burns out it might

@AKgamerYTbe

Жыл бұрын

What if i spin the last gear?

@AKgamerYTbe

Жыл бұрын

Well it won't even spin then :'(

@Oliver-ur5pi

Жыл бұрын

It can just after the whole universe is gone

@OttoLP

Жыл бұрын

@@CroissantCreates no, I mean, since the plastic isn't strong enough.

I'm working on my own insane gearbox using planetary and grinder gears to achieve a ridiculous 5 00:1 gear reduction per stage. It will only need 63 stages to pass your gearbox. The crazy thing is that the design has an extremely small profile with a thickness of just .25in per stage and an external radius of 5in. The total length of the gearbox will be just under 16 inches

@MelodicEgghead

Жыл бұрын

I subbed to you!!! Can't wait to see it

@turzilla

Жыл бұрын

thats so sick

@zema1846

Жыл бұрын

Звучит как что-то похожее на часовой механизм

This is actually mindblowing! It must have taken a whole lot of time to make this video as well. Amazing!

Try to move the last gear if you can, the rest of the gears will rotate at fantastic speeds

@CroissantCreates

Жыл бұрын

Nothing will move because the energy required to turn the first gear is greater than every motor on earth combined. The wheel would need to be built to the size of a planet to not sheer from the force alone

@haydarlab

Жыл бұрын

@@CroissantCreates Right, he should lower the number of gears a bit

@veni2598

Жыл бұрын

Is not possible! When you play with gears ratio you also play with torque ratio

@clothinghanger6978

Жыл бұрын

the about of force it would take to turn that last gear would shatter it

@Benlucky13

Жыл бұрын

He did that in another video, but with a much smaller gearbox. Probably close to the highest gear ratio possible in this style without major design changes. He got 1:1200 or so iirc, and that needed a foot long crank handle. m.kzread.info/dash/bejne/kXWWj7akmarYndI.html

I wonder how astronomical the torque would be on that last gear. Probably enough to move the world in theory.

@XtreeM_FaiL

Жыл бұрын

It could crush the known universe into a black hole.

@Inhale_8632

Ай бұрын

in theory it takes more torque to rotate it than there is energy in the known universe

That's cool and all, but actually it is more than likely that friction will cause a good chunk of the gear box to never move at all, and rotating the first gear for long enough will cause some of the gears to simply snap.

@-Yousof-

2 ай бұрын

🤯

I would love to see how fast the first gear would spin if it was possible to spin the last!

@FilosophicalPharmer

Жыл бұрын

Math.

@MistahPhone

Жыл бұрын

You stole his pfp

@User-qc7gn

Жыл бұрын

Me too

@astrouphel

Жыл бұрын

It's literally impossible for him to do so, unfortunately. But I'd love to see what incredibly reality-warping things would happen.

@XtreeM_FaiL

Жыл бұрын

10^169 times faster.

If you somehow got enough energy and force to spin the last gear, then you would open up a wormhole at the other end because it would go faster than the speed of light.

How many estimated years would it take to get all the slack out of this contraption before the last gear could even move?

@TantalumPolytope

Жыл бұрын

all the years

@gabriellacastillo-jm2ly

5 ай бұрын

10^169 secs at minimum

Another video in my life of things I don't understand but still very intrigued and interested in.

@chaplainmattsanders4884

Жыл бұрын

😂

03NOV2022 - Back in the 1950-60s near Columbia, Tennessee, you could stop on the highway and see "Bullwinkle's Geared Monstrosity." It was made of pulleys and v-belts. Somewhere I still have a postcard from that. I've always wondered what happened to it.

Great video. Too bad you didn't include digits 0 to 9 embossed on each gear as you printed them. Then you could see how many revolutions of the first gear have occurred. Can you imagine the torque that could theoretically be put on that final gear.

Spin the last one, i dare you

What happens if you spin the grey gear in the 4th Row. will the Orange gear spin faster in the first row ? Just Curious!

@abhiramaji1782

Жыл бұрын

Most probably it won't spin. It would require a tremendous amount of force to move it even a little

Something that is weird to think about is just how small the movement per second is...because if the high speed end is moving then the low speed one is too just so slowly you probably cant even see it under an electron microscope.

Looks great! Thank you for your video!

I really want to see you spin the last gear and watch what it would do to the first one if it were possible

@randomobbiest3893

Жыл бұрын

You cant

@farerse

Жыл бұрын

last gear would break before you could make it to move

@MicheleRoccapinnuzza

Жыл бұрын

It could be very dangerous. 

Use a lever and try to turn the last gear, you might need a press for that

@MicheleRoccapinnuzza

Жыл бұрын

It could be very dangerous. 

@-na-nomad6247

Жыл бұрын

@@MicheleRoccapinnuzza Yes, yes it could.

Last gear moves slightly Universe:Explodes

Can somebody explain what would happen if you took a really high gear ratio box (not this high though, something like several thousand to 1) and then took the same box and attached it to the end of the first but in reverse? Would you be able to spin the first gear and have the last gear spin at the same speed, or would friction or some other forces prevent that?

It would be fun to calculate how much the last gear turns after the first has made a full turn. It should be comparable to planks length.

@XtreeM_FaiL

Жыл бұрын

1st gear have to rotate trillons time to get close to Plank's length. No, I didn't bother to calculate that. Just a guestimation.

10 to the power of 169. That was on purpose. 😂

@krgbrgh8603

Жыл бұрын

Shut up nigga

now to the inverse toy------a 1:10 gear ratio, how fast can you get the final gear moving before it breaks apart, or something breaks!

The music at 3:21 , where you start talking about Brilliant... How can I find it? I HAVE to have it!!

If I got the math right, if you spin the first gear once per second, it would take 3.17E+161 years to spin the last gear once (I don't think the number with that many zeros has an actual name).

@MariaNicolae

Жыл бұрын

In the Conway-Wechsler system which extends -illion naming infinitely, it's 317 duoquinquagintillion years.

What happen if you try to turn the last gear Does it break ? Does the first gear turn faster than the speed if light ? Or does it does nothing

@odenroberts7603

Жыл бұрын

the torque needed would be so high, that it would probably break the gear. so, number 1

@mdylanjournet

Жыл бұрын

@@odenroberts7603 allright, thanks for awnsering

@odenroberts7603

Жыл бұрын

Take it with a pinch of salt, Im not a physicist

@thatoneguy611

Жыл бұрын

If you turn by hand it would just do nothing. With a powerful enough motor, the gears would just break.

How long did it take to print all of these

Can you add up the amount of backlash to the final gear?

I would have like to see you apply some torque to the last year to see how fast the first one could spin.

@MicheleRoccapinnuzza

Жыл бұрын

It could be very dangerous. 

@TantalumPolytope

Жыл бұрын

@@MicheleRoccapinnuzza why the ?

Please do it the other way to see how fast it will spin

@jacob.rausch

Жыл бұрын

That is literally impossible

@-LAWAN

Жыл бұрын

@@jacob.rausch I know

@-LAWAN

Жыл бұрын

@@jacob.rausch I know I just want to see

@CodeBlueWiki

3 ай бұрын

@@-LAWAN a normal human being can only spin the 4th or 5th gear if they are as strong as bruce lee

@-LAWAN

3 ай бұрын

@@CodeBlueWiki theoretically if you move it like by a nano centimeter it will spin super fast

I once built a pig rotisserie doing something similar. 1725rpm motor to a final drive of 3rpm. The motor had a 2” pulley to a 12” via belt drive. On that shaft was another 2” pulley to a 10”, another 2” to another 10” and finally a 10 tooth sprocket driving a 40 tooth on the spit rod via a chain. I never did measure the torque but it was a lot.

At what rpm is the first gear being turned to take 25k years. How many time does the first gear need to turn to make the last move 1 time.

Spin the last one, I wanna see how fast it goes if it can handle it

@Yora21

Жыл бұрын

It probably just would break, because the gear that is connected to also really doesn't want to move.

Now make one just like this but with a low gear ratio See if you can get the last gear to break the sound barrier

@eeveeofalltrades4780

Жыл бұрын

You can create a black hole with this

@XtreeM_FaiL

Жыл бұрын

Why make a new? Think!

@drsatan7554

Жыл бұрын

@@XtreeM_FaiL because this one is built one way and to build it the exact opposite would be even cooler

@XtreeM_FaiL

Жыл бұрын

@@drsatan7554 Turn it around.

@drsatan7554

Жыл бұрын

@@XtreeM_FaiL I don't have it but even if I did the handle would be on the wrong side

I've always wanted to see someone make an insane gear down paired to an equal gear up.

@truthsmiles

Жыл бұрын

The reason it wouldn’t work (on this gearbox anyway) is because even with the fastest motor in the world spinning the first gear you’d die long before you could even get all of the lash (slack) out of the gear train. You’d never see the “gear up” side move at all.

If we attached electric motor when we attached motor if we rotate 4 or 5 gear by hand then how much electricity generate ?

imagine how fast the first gear would be spinning if you rotated the last gear

@MicheleRoccapinnuzza

Жыл бұрын

If you turned it just one thousandth of a degree every 100,000,000,000 years, the first wheel would spin billions of billions of times faster than the speed of light.

@FlyLeah

7 ай бұрын

@@MicheleRoccapinnuzza🤯

Spin the last gear

@wesleyplace5455

4 ай бұрын

Yes

That opening pan shot 😍

Wait... So if you manually turn the grey one, does that mean the one on the other end is gonna go faster than the speed of sound? I think it might break though

I want to see it turned from the last gear but I know that's impossible/ insanely hard

@NutjobGTO

Жыл бұрын

That's quitter talk

@ImMimicute

Жыл бұрын

I’m exactly the same, I know in theory it’s impossible but it just looks so doable and I’ve never actually interacted with a gear array like this so I lack the mechanical understanding that it’s impossible

@grandfathernurgle283

Жыл бұрын

I mean if you could. That first gear would probably create an explosion because the atoms could no longer hold each other together.

@TantalumPolytope

Жыл бұрын

its not insanely hard, its actually impossible

@ImMimicute

Жыл бұрын

@@TantalumPolytope eh, it depends, if they’re 3d printed gears? Yea impossible, but with strong enough construction and enough force behind it then it is technically possible albeit theoretically

We all want to see you try to turn the hardest gear before it breaks.

If you turn the gear at the other end, would it exceed the speed of light?

You can measure a lot if you begin to switch around the gear ratios towards the middle and attach different weight affectations. Things like speed and distance traveled. And so on.

At what speed was the first gear pinning in your calculations to reach the amount of time you’ve concluded, I was curious about changing the speed.

The mounting points and the plastic will become worn and brittle, fall to dust before the last gear rotates

I like the rear ratio vids in reverse, where the lowest gear is turned so we can see the super fast rpm at the other end.

looks so cool.. great channel!

If it's not too much torque, could you spin the last gear by hand? or attach lever?

Me: waiting for him to spin the last gear Him: no

Plz create a dedicated channel for this gear box and livestream it with running mode

Imagine the torque that thing has.

Okay but can you imagine the torque?

"This gearbox has a significantly higher gear ratio than the number of atoms in the observable universe" Specifically, if every atom was actually a copy of the observable universe, the total number of atoms all together would still be lower than this gear ratio by a factor of 10,000

what would happen if you rotate the last gear first

Spin the second gear is the same way and you’ll get a time machine if you spin it fast enough

This is at least the third version of a "million year" gear train I've seen on YT. Most colorful version, though.

What if you built a gear box that scaled back the rotation ration to the original gear and then set the original gear in motion by an external gear and a lever?

@XtreeM_FaiL

9 ай бұрын

Same as now. Nothing, but you could rotate both ends at the same time and even different direction.

I'm still waiting for someone to make a bicycle outta this

what if you spin the gear at the end would it just take to much force or would you go light speed

legend has it these gears still spin today

If you made this with 0 tolerance and you made it so that the last gear is stationary, would the first gear turn? Or better yet how much can it turn if at all?

@muhammedkoya258

Жыл бұрын

Assuming you can put enough force, the gears would turn small amounts (within their elastic deformation range) until the return torque exerted by the last gear becomes too large and either a shaft or gear fails (plastic deformation and eventually breaking the chain). Obviously I'm making a lot of assumptions but thats the gist of it xD

Have you tried attaching a load to one side, and a generator to the other, for example, so that the load drops in 24 hours providing electricity? make a semblance of a gravitational power plant?

I wanna see how fast the first gear would go if you manually moved the last one. I bet the box would completely shatter

You should try to make a clock using this gear ratio.

How much torque would you need to spin the grey gear

That isn't a photo of the observable universe, its an image of a graphic that is intended to visually represent or depict the observable universe.

Legend says he’s still trying to get the last gear to spin

If you have a gear train with such a high gear ratio and multiple gears, there's a significant torque multiplication happening at each gear stage. By the time you reach the last gear, the torque applied to it could be immense, potentially exceeding the torque capacity of the gear teeth or the gearbox itself.

what happend if you try to turn the last one is the first in front go fast to light speed ??

You can make a more compact one with work gears

That is mind-numbingly mind-boggling. !!

Someone should make this thing out of stronger materials and try to move the last gear!

aaaw, I wanted to see him spin the last gear. although I suspect the whole thing would break a few gears down. I think the trick would be to see how slowly you can move it to get the most gears spinning before it explodes. ;P

i would love to see you try to turn the last gear

The torque at the end should be wild. Put a brushless motor on the input, and spin it up. You could make a TON of torque with metal gears and a super small electric motor.

you should make a reverse one and connect them together and see what happens

you can put that in a time capsule

Shoutout to the guy who photographed the observable universe

try thing about worm gear, it's more compact and more ratio then regulars.

I want an entire video of his old gear box spinning until the last gear spins once

Input torque is multiplied 10 times each stage. There is a friction for each set of gears, and then there is backlash, which would be Hugh for 169 stages, after several stages the torque will be far greater than the teeth can transmit, so this gearbox can never deliver the final ratio. I would be curious to know how many stages it would take to start shearing teeth.

@XtreeM_FaiL

Жыл бұрын

Forget the friction.

the desire to rotate the last gear myself got so big that i tried to grab it through the screen

Really wanted too see it all turn 😩🤣

We want the option 2 !!!

Question: How much torque would be required to turn the "small" end and cause a 1rpm rotation in the input gear?

@Tanka036

Жыл бұрын

I believe that amount of energy would instantaneously create a blackhole

just wondering, with "unlimited" budget, access to the best materials and machining tools, strongest and lowest resistance "aerospace grade" ceramic bearings, surface treated gears, axles, what would be the highest ratio/number of gears you could achieve that could be rotated from the slowest gears..I guess the best configuration would be using lightweight gears and lowest resistance for the fast spinning gears, and thicker/stronger/heavier gears/bearing for the slow spinning ones. I'm sure it would be quite amazing to see..this looks more like things I did with Lego technics when I was a kid.

can you do a short where you spin whatever the highest gear you can?

That's for when you want to get up a really steep hill. Really, really, really steep... and you're not in a big hurry.

What if you mechanically rotate the last gear Will the first gear raise to speed faster than light?

What if you used a giant F1 rocket engine with 35 million newtons of thrust to spin the last gear. Or use the catastrophic force of a nuclear bomb to push the last gear, spinning the first gear at the speed of light. You would have to have the last gear to be big enough to actually utilize the rocket or the bomb, and attach a heat shield to keep the gear from burning.

How long did this take to print?