/sci/ - Science & Math

[Anonymous No.5699137]

So /sci/, what would it be? A or B? Let's test your physics knowledge.

[Anonymous No.5699142]

a if popsci such as this existed.

[Anonymous No.5699144]

>>5699137

let's not get into this

anyone who says B is retarded. we've had this thread too many times, and everyone agrees it's A so lets just leave it there

[Anonymous No.5699145]

>>5699137
It's sad that I have nothing better to do on a Saturday night than to make a detailed picture with a description for this thread...

None the less, check the picture for your answer. It explains it very well.

[Anonymous No.5699148]

>>5699142
>>5699144
seems like it would be A to me

[Anonymous No.5699150]

>>5699137
Do you know about the conservation of energy?

[Anonymous No.5699155]

>>5699145

you probably didn't make this picture. It's been shown multiple times in this thread already. It's also wrong, and it's still not B

you have to use discrete math when dealing with portals

you can't be half in-half out of a portal it's either all in or all out

[Anonymous No.5699174]

How about this OP.

Instead of creating a stupid argument thread you create a couple of portals in your backyard, run some experiments about 100 times, and post the results. You know, actual science.

[Anonymous No.5699246]

>>5699137
This isn't a test of physics knowledge though. It's test of your ability to make shit up.

[Anonymous No.5699446]

B

If you think A then you think pic related

[Anonymous No.5699460]

>>5699446

the only problem is that portals don't work discretely. you can't be half in half out

[Anonymous No.5699461]

>>5699460

i mean continuously. they do work discretely

[Anonymous No.5699464]

>>5699155
um no it isn't. Have you ever played the game? You can be half in and half out a portal. It happens all the time and its useful for solving some of the puzzles.

[Anonymous No.5699466]

>>5699446
the problem with that is, portals cannot go on moving surfaces

[Anonymous No.5699467]

>>5699460

Yes you can, play the game.

>>5699466

They can as of Portal 2. Go play Portal 2.

[Anonymous No.5699851]

The answer is B.

[Pedro !!h6N23eWX4gY No.5700149]

>>5699467
No, they actually made the room move, not the portal.

[IHΠ No.5700177]

The answer is be

lrn2relativity

[IHΠ No.5700180]

The answer is B

lrn2relativity

[Anonymous No.5700181]

>present magical apparatus
>demand physical description
Everyday is ruseday here

[Anonymous No.5700182]

[Anonymous No.5700203]

A if conservation of momentum
B if speed between reference frames is constant.

[Anonymous No.5700217]

>>5699137
Scientifically, there are a fair few theories on a varying amount of wormhole ideas. The Einstein–Cartan–Sciama–Kibble theory of gravity allows for the formation of an Einstein-Rosen Bridge. Although, they suggest that all black holes are actually Einstein-Rosen bridges each containing an entirely new universe. This includes the theory that our universe is actually inside a black hole.
Since the only possible wormholes we know involve singularities, we cannot measure any of their properties or even make a guess as to what would happen to matter travelling into them.
Since singularities cannot be explained by any currently proven theory of gravity, this is a superfluous exersise of "who is the most retarded pseudo-nerd".
If you really want to try and understand how a wormhole works, educate yourself in theoretical physics to the highest level possible and come up with a decent theory of quantum gravity.

[Anonymous No.5700279]

For those who think it is A, you seem to believe that the box would exit with zero velocity. Similarly, I assume you'd say that if the box were moving up with velocity v in the lab frame, it would exit with velocity v, perpendicular to the blue portal. But what if it were moving down at velocity -v, where -v is smaller in magnitude than the velocity of the orange portal (-V)? Would it exit at velocity -v? But that means it would exit by moving into the blue portal, which makes no sense.

[Anonymous No.5700294]

This is unsolvable.
Y'alls posting in a troll thread.

[Anonymous No.5700647]

>>5699155
Alright, if you chopped the cube into hundreds of little cubes then it would be B

[Anonymous No.5700659]

With in game physics it would probably be A, although in game physics mandates that the situation is impossible anyway.

[Anonymous No.5700665]

Portals can't be placed on moving objects.

[Anonymous No.5700683]

imagine looking at it through the blue portal, the dark grey platform and the square would be hurtling towards you, so when it comes out it would shoot out, i can't see any reasoning why it wouldn't

[Anonymous No.5700691]

A if it maintains its momentum relative to some magical preferred frame of reference
B if it maintains its momentum relative to the portals

In other words, B

[Anonymous No.5700703]

These threads every time
>People who know physics but are easily trolled
>High schoolers
>Trolls
>People who don't know physics
They are all here

[Anonymous No.5701136]

A and B are correct.
The answer is A if you're watching the cube, or B if you're watching the portal. The yellow portal IS the same object as the blue portal. Moving the yellow portal relative to the cube, is exactly the same thing as moving the blue portal relative to the cube. You cannot move one half, without moving the other half. It doesn't break any law of physics or whatever, you just have to hold in your mind that there is zero distance between the in direction and out direction of each side of the hole, and there is nonzero distance between the in direction and the other in direction, same for the outs. You're not breaking anything because you're moving space which contains the cube through the portal. The sum of space is still the same. I'm fairly certain that Valve has accidentally something important.

[Anonymous No.5701149]

Hey, everyone saying the answer is B, you can do this experiment at home. You know know how? Go grab a cup and a die, or whatever other object you can find, then slam the opening of the cup over the die or object, if you die or object hits the top of the cup,y ou are right, but since it wont, you are wrong and hopefully the glass from the shattered cup reinforces the fact that you are stupid.

The cube is not moving, so it will just fall out of the blue portal, it wont go shooting off into the distance, because no matter how fast you are moving the portal, the cube itself is not moving at all.