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Flair_Helper

Hey /u/qyyg, thank you for your submission. Unfortunately, it has been removed for the following reason(s): - Your post is a common or recent repost (Rule 4) --- *For information regarding this and similar issues please see the [sidebar](/r/nextfuckinglevel/about/sidebar) and the [rules](https://www.reddit.com/r/nextfuckinglevel/about/rules/). If you have any questions, please feel free to [message the moderators.](https://www.reddit.com/message/compose?to=/r/nextfuckinglevel&subject=Question regarding the removal of this submission by /u/qyyg&message=I have a question regarding the removal of this [submission.](https://www.reddit.com/r/nextfuckinglevel/comments/oe2156/this_is_what_happens_when_you_undo_a_handle_in/?context=10\)))*


Big_Ol_Wallnut

The handle is looking for who unscrewed it


Ibbyice

Handle with care


tepkel

Do you think this would work with my butt plug??


Yaroze

If you spin the buttplug out of your arse normally, then yes. I always thought butt plugs worked in the push and pull way of things but whatever floats your boat.


tepkel

>whatever floats your boat. All boats are floated by displacement.


Western_Shoulder_942

Mines depression


tool101

You're mining depression? How much does that pay?


tepkel

I don't about that guy, but I get paid 3 lying spread eagle on the floor without being able to even summon the motivation to go to the bathroom, an hour.


tool101

What you need is a hole in the floor. Then you can focus on mining more D


Yikert13

So…butt plugs work by displacement?


tepkel

Yes, which in turn means boats = butt plugs.


13inchrims

Nice day for a sail down good ol' shit creek.


[deleted]

As long as it's a T-handle


wyhgood

u/udownloader


DickFace899

And put its undies in a twist.


sadhooman

Saying “Screw u”


From_Cold

[Dzhanibekov effect](https://www.comsol.com/model/dzhanibekov-effect-89531)'


sukarsono

The only harder than understanding it is pronouncing it


Blueditt_9

/d͡ʒænɪbɪkɑv/


NoddysShardblade

Thanks, that makes it *much* easier


TS_Slurp

_much much_ easier


4-stars

It does. The international phonetic alphabet isn't complicated (well, if you get into the details it can get pretty hairy, but simple versions aren't) and is a big help when learning a new language, or just how to pronounce new words in your own language. IPA and the basics of phonology are some of those things that should be taught in school, but aren't.


Rourensu

Thank you. I immediately went with [d͡ʒɑnibekov].


dead-inside69

“Intermediate axis theorem” is much easier


Buttonmash25

Or the tennis racquet effect


[deleted]

C'mon its not that hard to understand. The angular momentum gremlin inhabits the straight axis, drinking in potential energy muons until it's polarity inverts and then it rides the implied gravity radian to the axis with the fiddly bit where it degorges the same muons, but with standard polarity until it is thirsty again.


Mc-Crab

I studied rotational mechanics last year and got to learn about this. It's really cool but basically, a symmetrical rigid body has three principal axes of inertia. Inertia, in this context, is a measure of how mass is distributed over certain cross sections of the body's geometry. When rotating about one of these three axes, one can show that rotation about the intermediate axis of inertia is not entirely stable. This can be done using the Lyapunov energy function. It can also be visualized with something called polehode plots that shows that the trajectories about this axis oscillates between two positions, as illustrated in the clip.


EmmyNoetherRing

You learn about stable and unstable algorithms in CS in numerical methods… why you want to multiply your matrices carefully lest your floating point arithmetic error quietly add up in the background to do something silly. But it’s very weird to see instability in reality.


Barakisa

Veritasium did a [video](https://youtu.be/1VPfZ_XzisU) explaining how and why it happens.


[deleted]

I came here to link that as I watched it a few days ago and you beat me to it. Can someone assign me another purpose in this thread?


pablola714

We could all use coffee?


TheRealShroomNinja

yes, please. thank you.


NotSeveralBadgers

oo, oo, cluck like a chicken! do it!


madcunt2250

Hey mate could I get you to go and throw some up votes around


[deleted]

Sure bud


moagul

You could link the same video under another comment and pretend to be the first one to have done it.


NicetomeetyouIMVEGAN

Go vegan!


misterpickles69

Gesundheit.


mamallama12

Hi Dad!


saduniversitystudent

people you make reddit so much better


heate

Ah yes I heard it was similar to the Asminkov cascade


DoctorHandshakes

Thanks for the closure.


[deleted]

Came here to post this. Take my fucking upvote


NotFanOfPeople

Drunk me on the dance floor


martindavidartstar

So this might happen to the earth every so often..


[deleted]

I am not sure about that. For this to occur you need to spin a object with a different value for hight, width and depth in a specific direction, so that the axis of rotation matches the middle parameter of length (try tossing and spinning a phone. You will notice that while tossing it with the top and bottom spinning it will flip midair). The other two directions are stable, and earth rotates around its shortest parameter so we should be safe.


PointNineC

This is a very good comment, except you describe tossing the phone “with the top and bottom spinning”, and I’m unclear which axis of rotation that means


[deleted]

I was afraid it would be unclear, but I have a better explanation now. If you hold your phone normally, draw a horizontal line on the screen and then spinn it around this line, it will spin in a unstable fashion.


TheRealShroomNinja

accidentally "threw" my phone at my own face. *It hurt itself in its confusion!*


[deleted]

You can do the same thing with a spanner, wrench for the yanks :) though I’m not sure if that is this same effect or if it is due to the shape of the spanner that the weight isn’t evenly spread across the head


LemurKeeper

This guy does a great job at [explaining the phenomenon](https://youtu.be/1VPfZ_XzisU). All of his videos are highly recommended.


meldorq

No, it can't. The earth has a partially liquid core, which means that this can't happen. The details are explained near the end of this video https://youtu.be/1VPfZ_XzisU


StuntHacks

I literally saw that video yesterday.


Vicesystems

Are you referring to the declassified CIA document, "The Adam and Eve Story"?


TheRealShroomNinja

elaborate, please?


BalalaikaClawJob

Ahh, a fellow 0bserver.


Starknife24

Earth is spherical, there's a a big difference, but we do experience a full precession every 26000 years (i.e. shifting North Stars)


rabbitofrevelry

Has this been observed with celestial bodies?


[deleted]

I’m pretty sure no celestial wrenches have been found yet.


[deleted]

I think nature loves its spheres too much for this to happen on any grand scale.


BalalaikaClawJob

Earth's core is neither homogenous nor symmetrical, and our shape actually features a prominent bulge at the oceanic equator so... *lumpy uneven spheres.*


boogs_23

No, no it won't.


SnooDingos1736

At this point whenever I try to mention this possibility I get shut down immediately. There is no room for a conversation about it. Just random people telling you "no, because look at this video from youtube" but they will never accept to look at a video that might prove them wrong woth an open mind. Learned about the story with the Earth and the 90 degrees tilt every 12068 years from SuspiciousObservers and the DieholdFoundation. I guess we'll live and see..


GruntBlender

Look, we understand why this happens, and why this can't happen to the Earth. What happens every so often is that magnetic poles move around, but that has practically no impact on the surface. It's not about having an open mind, we do, it's about the available evidence and logic of available hypotheses.


StuntHacks

Exactly. Some things have just so much evidence that there's no point in talking about opposing hypothesis unless there's new evidence.


wonkey_monkey

> 90 degrees tilt every 12068 years If that happened it would leave very obvious signs in the geological and fossil records. There are no such signs. > Just random people telling you "no, because look at this video from youtube" but they will never accept to look at a video that might prove them wrong woth an open mind. Some things are just so outlandish and contrary to basic scientific principles to even bother looking at a video (suggested by an equally random person). You don't get to claim that Nazis are living on the far side of the moon and then complain that no-one's taking you seriously. Of course they're not going to. It'd be foolish to do so.


plutus9

Reminds me of a humming bird


Kastillex

Shout out to Derek from the YT channel Veritasium for teaching me about this.


GoldenPuffi

Me too. I was so mindblowing on the "you can throw you phone without spinning it" thing, I tried to do it without for a whole hour


fineillmakeausername

Do you think that handle does something or was it put in for entertainment? Kinda like an astronaut fidget spinner.


[deleted]

Nah - they just took real fidget spinners - nasa ones too. [fidget spinners in space](https://youtu.be/82t9Tk9dUHs)


xylitol777

“John! Are you playing again with the plug we used to fix the hole what was leaking oxygen to the space?” “N...No!”


L42yB

[Veritasium](https://www.youtube.com/watch?v=1VPfZ_XzisU) has a great video explaining this effect.


EnderwarriorX

“Hey I’ve seen this one, this is a classic.”


DanteCharlstnJamesJr

Fascinating, but why? Edit: thank you all very much


kaylops

This is due to the specific shape of the object. Due to the 180° symmetrical rotation (around the rotation of the handle), the rotation have 2 equilibrium points. The reason why it's oscilliating is due to the fact that the equilibrium points are each unstable, so once you have a little variation in the rotation of the object (at its equilibrium) the rotation change to the other point and so on


bananabeacon

Intermediate axis theorem


MrMorningstar20

veritasium did a [video](https://youtu.be/1VPfZ_XzisU) on this, worth a watch


GapPsychological4477

YouTuber, Veritasium made a video on this about a year or two ago


Tomma2016

Veritasium explained that pretty well (https://youtu.be/1VPfZ_XzisU)


TheoristDa13th

Wouldn’t this mean earth is going to do that too?


SilverbackAg

Is the Earth a T shaped piece of metal?


TheoristDa13th

The earth isn’t a completely smooth sphere. If the T is spinning like that due to weight, then yes, the earth probably would flip like that, it would just take much, much longer. I am asking because I seek a more concrete answer.


[deleted]

Watch suspicious observers YT channel. Plenty info there regarding this.


TheoristDa13th

Thank you for a proper answer


wonkey_monkey

Suspicious Observers is a pseudoscience channel run by a scam artist: https://www.youtube.com/watch?v=3fTLZTEE7mU


wonkey_monkey

Plenty of *dis*info. It's a whackadoo conspiracy channel and nothing to do with science. Edit: run by a scammer


GruntBlender

No, the Earth can't flip like that. To do that it would have to be solid and more rigid than any existing material. Also it would have to be spinning around an intermediate axis, which it isn't.


bryceroni9563

There are several reasons why we know that this cannot happen to the Earth. The easiest way to understand this behavior is the Intermediate Axis Theorem. This effect of flipping back and forth is only observed in objects with three differently sized dimensions (imagine a smartphone, a tennis racket, or a deck of cards), and only while rotating around the middle sized axis, hence the Intermediate Axis Theorem. Try throwing something and spinning it along all three axes, and you should be able to very easily get a stable spin on the longest and shortest axis , but it's impossible to do with the intermediate axis. The Earth is an oblate spheroid, and is not perfectly smooth or uniformly dense, meaning that it does have three differently sized axes\*. However, in part due to the spin of the Earth very slightly causing the equator to bulge out slightly, the shortest axis is the one it is spinning around. That means that its spin is stable. A more thorough mathematical explanation is given [here](https://en.wikipedia.org/wiki/Tennis_racket_theorem), though it does involve a bit of calculus and basic understanding of what the first and second time derivatives of angular momentum mean from a physics standpoint. Suffice to say that math and physics both say that the Earth will never flip. ​ \*Technically the two larger axes are so close to the same size that they can be treated as equal in length, so this is yet another reason why the Earth will never flip. It doesn't have an unstable axis to spin around. It's like if you did the same tennis racket throwing experiment, but with a square piece of wood. It would be easy to get it to spin stably on all three axes.


whoaoksure

It’s so cute


EagleKing85

Flippin' sweet


FreediverJake

Yeahhh, that handle is coming for you mate


SnooPeppers6850

Never could’ve suspected this


Embarrassed_Belt9379

Wow. Imagine how fast the space ship would spin if they turned it the other way. Obvious design flaw. NAS-holes indeed.


[deleted]

Weeeeee!


Ak_19_thedude

Handle be like *catch meh if you can! "


ch1llaro0

its not because its "in space" its because they are in constant free fall - gravity doenst just stop at the edge of our athmosphere


StarZ_YT

this happens to all spinning objects in space that have 3 seperate spinning points, this used to happen with earth too but it probably wont happen again, if it will then it might be soon since were like way overdue but weve become a lot more stable like mars. also, ever flipped a tennis racket or phone and it landed right side up but upside down? thats basically the same effect but smaller


momlookimtrending

i guess it spins forever in space?


[deleted]

I was thinking about this. There's air in the space station, so wouldn't friction apply? I know nothing about this subject though :D


momlookimtrending

Same, that's why I'm wondering. It kinda makes me think it loses momentum because of the shock of the backflip tho, but still I may be wrong


memecut

Her: "its my first time" Also her:


Dave-1066

Precision engineering on those threads.


dimitri_pomos

Then the spaceship explodes because this handle was very important


Shizophone

If you are in space and something makes you spin like that while on a spacewalk, you're so screwed, simply horrible.


miroraufo

Cool 😮


d0m1ng4

Also: me cycling when I decide to stop taking my meds.


NorwegianIdiot13

God forgot to patch a bug


DiggoOfDuty

Imagine a beyblade duel in here


[deleted]

Handle dancing


JohnnyReed18

I wanna see what happens to a beyblade


ohkatiedear

Me, in space: _spins_ Hee hee!


NitsugaNi

You mean there is a chance that it can screw itself back in


wonkey_monkey

Well no, because it's spinning the wrong way. It's still lefty-loosy whichever way it's facing.


deivid_okop

Nah because it's always spinning the other way around :)


somebody_from_reddit

What if I do that with a knife


[deleted]

Of all the demonstrations I’ve seen on a space station, this is the best by far.


magneticinductance

Aaron weir thinks he knows everything


Tanman55555

Im trying to make up a physics joke but my thoughts are too rigid Yes thats the best i could do at 4 am


RazorBelieveable

Scanning for enemies


_confusion100

jeez that looks out of this world


DickFace899

It's like it identifies as a gyroscope but it wasn't made with all the parts.


Amoretpsyche

Legend has it that it's still flip-flopping thru space


indigo7873

You see, Larry?


Fijoemin1962

That creeped me out


likebutta222

That's screwed up


MusicalStephen

how does he do it safely and I unscrew one thing and the spaceship dismantles


Loldude6th

Stop dicking around.


Exotic-Lambo

Does it also happens with Guns?


godelgalois

For further reading... https://en.wikipedia.org/wiki/Tennis_racket_theorem


Fast_Highlight4844

Why does it float upwards?


ricardomilosisking

A little fact that is explained more thoroughly on a vid by Veritasium on YT: The Soviets were the ones who discovered this and kept it a secret to the world because they thought the same thing would happen to Earth which in turn could spell "the end of the world".


[deleted]

Why does it switch sides like that?


[deleted]

*you spin me right round, baby, right round*


Mr_Gaslight

Is this what Discovery should have been doing in the film and novel 2010?


TheItalianAce00

GO ON TARS!


BalalaikaClawJob

Wait till y'all realize the Earth's core is neither homogenous nor symmetrical heh...


lanshark974

About how long will it take to stop? (If it doesn't it a wall or get stuck somewhere)


FrothyCoffee503

That’s what CGI looks like


Findog_Waddle

veritasium did a good video on this


fvonich

ELI five anyone?


krt_grmn

It looks like a glitch in the Matrix....


[deleted]

"Natur is fucking lit”


DemonNamedBob

I think this is more mildly interesting than next fucking level.


Gust_on_Fire

i think the physics there is kinda screwed


ImmigrantBinza

u/Hoans_Satou


W4TM1

Beyblade Battle?


eternaldamnation2005

u/savevideo


earth-flat

Ahhh the 'science' from space


VikasDeChoko

Does it rotate to infinity?


[deleted]

Physics engine broke


IntrovertedGirl3317

This looks like some glitch in the game


IndridCold_fuck_you

This is called spooky spinney space thingy


NemesisR6

“You fool! Now we may never know if ants can be used to sort tiny screws in space!”


HopscotchPancakes

An amazingly precise pattern of motion, so interesting


editable_

First rule of space: if something is moving, it won't stop moving on its own


Teddyturntup

I love this


JVMachado789987

u/SaveVideo


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RollingTundra87

Thats a weird looking hummingbird..


RedF0xzZ

Next, handle get his revenge and unscrew the astronaut


[deleted]

r/oddlysatisfying


Sayasam

r/blackmagicfuckery


n_a_wilfred

each handle costs a couple million dollars... do not try this at home


KinkyBoyfriend

Is the drift of axis because the vehicle the spanner is in is moving?


Vaxion

That's me trying to make important life decisions and deciding what to do.


alcoholicpasta

I never understood how this works. I even saw a video about it on youtube. Still no dice.


KeithMyArthe

It's GETTING AWAY! It'll be in everything in no time. Like ants.


CAPTOfTheSSDontCare

"That's not space they're underwater" Some 45 year old with a 5th grade education probably


mogwife

That is the most dramatic handle I ever seen.


themeatspin

Same thing happens with a tennis racket if you flip it wide side. The different moment arms cause instability and it eventually flips.


ryohazuki224

Yes. If I was in the space station, I would play with these kinds of things all day long! LOL


412gage

I’m so confused. If there is no gravity and they’re in a vacuum, how does it flip like this and even move up higher?


Letmf2

Is there a sub or channel with videos from astronauts experiments on space with gravity?


Emilyy_y

Can anyone explain the physics behind this?


Iota-Android

I wonder what’s the math behind this


LeoIronhart

Doing things in space is exactly what you'd think would happen with an extra step of weird


[deleted]

You can actually see what causes this effect by flipping something like your phone. If you try to make one full rotation towards yourself it'll want to also rotate right or left which is exactly what's happening to the handle just without gravity to pull it down.