Marcel Padilla

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@cheeseburgermonkey7104 Ай бұрын

[insert random line from _Outside In_ (1994) here]

@Mqpz. Ай бұрын

I dont know sorry

@8milestreet Ай бұрын

Weirdly sexual

@yetravellingsonc8372 3 ай бұрын

Of course, I can turn a rubber band inside out.

@fiery114 3 ай бұрын

Like a basketball

@omoliemi 3 ай бұрын

Is this yuri

@ScreamLoud763 4 ай бұрын

It’s impossible to talk about stuff like this these days 😭

@FireyDeath4 4 ай бұрын

Oh, you know what might make it more understandable? Have two views, with one being opaque, and one hiding the outermost material layer like those one-way textures you can see sometimes in modelling programs

@packardbell987 7 ай бұрын

Quite nauseating even on a small screen. I imagine as an installation, being inside it could induce seizures even for non epileptics!

@hamish_todd 7 ай бұрын

Amazing presentation

@fxeditors 7 ай бұрын

@celeolou4167 8 ай бұрын

Okay, so in topology, a surface can pass through itself without invalidating the transformation ? As seen at 0:23. So my dream to "evert" a ballon should still wait ?

@KnakuanaRka 9 ай бұрын

This might be easier to follow if the two sides were more different colors (like red and blue) so you can easily tell what's on top; here they're really similar, so it's hard to see what's happening, especially with how it's colored meshing instead of a transparent film.

@Raflemakt 9 ай бұрын

A life saver ! Now I will evert all my spheres in no time .

@氣Pluh 10 ай бұрын

“Argh; let me try again”

@robiginal 10 ай бұрын

Why is it so slowww

@samn910 10 ай бұрын

0:07 b o w l

@suhnih4076 11 ай бұрын

@paulfoss5385 11 ай бұрын

Are there smooth mappings between sphere eversions?

@Gretanit 11 ай бұрын

why did it have to be proved?

@shikaishik 11 ай бұрын

こういう生き物いますかね？

@NHOrus 11 ай бұрын

Thats more understandable

@中井誠二 11 ай бұрын

Still can't understand. Imaging 3D is too difficult for me.

@윤재윤-x1b Жыл бұрын

@theAmazingJunkman Жыл бұрын

“That’s an interesting idea, so it’s against the rules!”

@aidenjohns8248 Жыл бұрын

Static charge, once they are at the same potential they unite..

@afid7184 Жыл бұрын

Only in 4D

@WitherGaming69 Жыл бұрын

You did it, you turned a sphere inside out without tearing or creasing it.

@CommonTater100 2 ай бұрын

we just won't talk about the surfaces passing through each other

@oibeseehc3 3 күн бұрын

@CommonTater100 that’s how the game works

@gruboniell4189 Жыл бұрын

Charge

@LethalChicken77 Жыл бұрын

Actual footage of me committing tax eversion

@liox2597 Жыл бұрын

Is there any significance to a sphere turning inside out requiring a temporary Mobius, and a Torus eversion. Obviously there is a Mobius eversion because the sphere has to hit the milestone in order to successfully evert. So what would happen if you applied a Torus eversion to a Mobius strip. Breaks the game surely, but this has piqued my curiosity. Edit: it’s actually an umbilical torus, and there aren’t really any videos like this on them.

@erawanpencil Жыл бұрын

Why @0:26 can you suddenly push the blue lines up through the green? Not intuitive. Why couldn't you have just done that at the start without all the twisting?

@want-diversecontent3887 2 ай бұрын

If you try to do it the simple way, pushing the hemispheres together, it creates a sharp bend, and for mathematical reasons it's more favorable to avoid those. There is a method whose first step is pushing the hemispheres together but stopping before the sharp bend, which you can find a visualization of with the title "Sphere Eversion: de Neve/Hills" (having comments with links is almost now due to spambots, but it has a distinct title so it can be easily searched for).

@erawanpencil 2 ай бұрын

@@want-diversecontent3887 Thank you, I'll look for that. But it's correct that at some point or another one has to push the topological surfaces through each other right, that's one of the main freedom one has in this type of topology? thanks

@georgerendell7292 Жыл бұрын

I don’t understand what’s happening at 0:22 when the blue appears to just expand past the green?

@That_One_Guy... Жыл бұрын

It's just some balloon pump that exist in 4D world expanding the blue balloon, but in exchange for shrinking green balloon.

@cheeseburgermonkey7104 Ай бұрын

This sphere is made of an abstract elastic material that can stretch, and bend, and pass through itself. -The female voice from Outside In, probably

@SomeRandomDuude Жыл бұрын

kewl 😎

@biggreenblob Жыл бұрын

I still can't understand why there must be no creases or sharp bends. It seems like such an arbitrary rule, no less absurd than imagining a material that can pass through itself and stretch infinitely. Why not just imagine that the imaginary material can be creased???

@dsgowo 11 ай бұрын

The rules make sense when you think of the sphere less as an actual material and more as a differentiable function that takes in latitude and longitude coordinates and maps them into 3D space. The simplest such function would be a sphere, but any shape is valid as long as the function remains differentiable. If there is a rip in the sphere, then the function is discontinuous and cannot be differentiable, and if there is a crease or sharp bend, then that would also be non-differentiable. On the other hand, if the material passes through itself, that's the same as the function taking two different inputs (taking two different points on the original sphere) and mapping them to the same output (pushing them into each other), and there's nothing wrong with that.

@dsgowo 11 ай бұрын

Mathematically, this is a proof that the sphere and the inverted sphere are regular homotopic, meaning that there exists a continuous path between the two mappings such that all the intermediate states are also valid mappings.

@CopperiiCitrate Жыл бұрын

“Hey? I read somewhere that mathematicians can turn a sphere inside out, whats the big deal? Just poke a hole and pull it through.”

@jackvortack3782 Жыл бұрын

Do you mean inversion?

@fortepiano4491 Жыл бұрын

about as transparent as a cast iron wall, i actually understand the concept less now

@christiansmakingmusic777 Жыл бұрын

Yes, but making it overlap itself is not a possible in the real world. This exists in an abstract space where sometimes single points in the space are actually two points on the object.

@Mizai Жыл бұрын

your creasing it infinitly tight

@xavierlu5849 Жыл бұрын

"Smiles are like bowls, curving up. *booooooooop* " "Frowns are like domes, curving down. *bopppppppp* " *But there are other points that are neither bowls or domes, they are saddles. *Beeeeeeeeeeeeow* "