Guys, hear me out

it is moving, it's coming out of somewhere, that literally means it's moving
it was on one side of the portal, and now it's on the other side
that's how movement works, it changed location over time
don't use complex words like momentum or inertia, you can't even grasp the concept of motion yet kek

Portals are essentially just a hole. They don't have the power to selectively move volumes of space or locally redefine how physics work for objects that have passed through them. An unmoving cube would simply not move.

you still have not listed a single point when the box gains any momentum besides gravity acting upon it. every movement leading up to the transition between portal spaces does not affect the box's own momentum. why would the box come flying out of the portal? it was the space on top of the box that was moving, not the box itself. the only way B happens is if the platform the box is resting on was thrust upwards, instead of the orange portal platform thrusting downwards, because that way the box gains momentum by the moving platform

>it's the space around it that is moving
This looks identical to motion because it is motion.

>so when the box is transferred nothing moves it
The box being transferred at all requires movement.

'A' already doesn't make any sort of intuitive sense, but it makes even less than completely no sense when you realize that if portals that are in different locations change your location, portals that are in different orientations change your orientation, then why wouldn't portals that move at different speeds somehow NOT change your speed? It's unintuitive AND boring.

Also, Lunacy.

I'm not continuing this argument unless you accept the fact that regardless of the solution being A or B, the box is moving out of the exit portal.
If you don't understand a concept as simple as motion, I don't even know how you live your life.

the portal forces the box's point in space to be changed; that is all a portal is. the portal does not add velocity or speed to an object.
the box is not moving, the portal is. the space around the box is moving. this does not change the box's own (stationary) movement.

picrel, which i made in a minute, is a thought exercise that demonstrates this perfectly. here, the box is being hung by the ceiling from a string. the orange portal is coming at it very fast. what happens when the box is forced through the portal? (black line on orange portal indicates something sharp to cut the string, so as to not influence any swinging when it collides)

A. The string is severed and the box simply falls to the floor because of gravity.

B. The string is cut and the box is flung wildly in the direction of the portal's momentum.

the answer is A, because the portal does not influence the box's momentum. maybe some slight wind resistance would change the box's trajectory as it falls, but it would not send it flying through the air as B depicts

Attached: 132431243143.png (1296x681, 39.32K)

is your exit portal moving in your "thought excercise"?

Anyone who says anything other then neither are wrong. An object can not be in motion and not in motion in relation to the same object at the same time.

>in relation to the same object at the same time
kek are you talking about the cube being static in relation to itself?

>the portal forces the box's point in space to be changed
This is what we call movement.

Kinetic energy is a property of matter, the moving platform never touches the cube so it transfers it's momentum into the bottom platform, not the cube.

>property of matter
lol no, it's a property of moving objects
the cube is moving otherwise it wouldn't come out of the exit portal

Nope box is not in motion in relation to the orange portal but in motion in relation to the blue portal. The blue and orange portal are the same object.

All this says is "portals are impossible". It tells us nothing we don't already know.

The answer is B, because the Portal's movement imparts the same relative movement onto the cube, much in the same way that two portals' relative rotation imparts that rotation onto an object, or two portals' relative height imparts that height onto the cube. It's all relative.

Fuck off nigger

Neither
Portals cannot be placed on moving surfaces.

OP, you are retarded. Just think about your anal sex experience. When you thrust your fist into another man's asshole it gains momentum and plops right through to the other site. However, if that dude is riding your cock it says static regardless of ot positioning in front or past the anus.

>Video starts
>It shows the contraption in OP in a dimly lit room
>Camera pans around for a bit, nothing seems to be happening
>Suddenly, the sound of contraptions is heard
>The piston with the portal suddenly starts to move at high speed towards the cube on the platform
>Before the piston makes it, the screen cuts to black
>Portal 3

If you aren't basing it in reality then its just whatever the game logic states is true which is portals can't be on moving surfaces.

>The blue and orange portal are the same object.
They are not objects, they have no momentum, intertia, or whatever. In your words, the cube is in motion in relation to the exit portal, which means it has momentum. Once it comes out of the exit portal, it keeps its momentum.

Two possible answers. First is simply the result of that train portal gif that gets posted in every thread that intuitively demonstrates that there is no obvious difference between a moving cube and a stationary cube.

The other possibility is that the cube actually does maintain its velocity at the blue portal, which would cause it to accelerate to the right of the blue portal as more cube is moved into the portal, which also causes the part of the cube to the left of the orange portal to accelerate in the direction of the orange portal. This will eventually balance out to were the cube is back at zero velocity, but not for the reason you are thinking. Had the cube been on a platform like in the original, there would have been another force that would have resulted in accelerating the cube up to approximately the velocity of the orange portal.

Your problem with thinking of this is that you are thinking of the box's "point in space" as a singular point in space. The cube makes up many points in space, which all need to be accounted for. If the leading point of space in not moving, there is a reaction and force when the portal causes a lower point in space to become closer to that top point in space.

Guys, if I move hula-hoop very quickly, so a box passes through it, will the box fly away?

Not videogames

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But its not in motion to the entry portal which can not happen because blue and orange portals are the same thing. Portals are not tunnels

portals are literally tunnels

conservation of energy suggests that it's otherwise you are creating free energy

Speedy thing goes in, speedy thing comes out

Attached: portal3.gif (654x564, 15.31K)

no, it was just drawn there to show the seamless connection between portals. it does not matter which point the blue portal is placed on (roof, wall, floor), when the box exits the blue portal, only gravity will be affecting it

the box is indeed being moved, but the box itself is not moving. the portal changes the box's location in space from point A to point B, but there is no leftover energy to carry the box in any direction. therefore only gravity can act on it from that point on

picrel is an addition to show what would happen if the blue portal was located on the floor of the next building or whatever. once the box changes points to where the blue portal exits, gravity (the red arrows) is the only leftover force acting upon the box itself. gravity from when the string is cut on the orange portal's side will be pulling the box to the right on the blue portal's side, but the new gravity energy will be pulling the box back down, leading it to fall closer to the bottom right as indicated by the third red arrow.

>the cube actually does maintain its velocity
but it has no velocity besides gravity's force. if the orange portal was being thrusted towards you by a platform at an alarming speed, and you jumped and curled up into a fetal position in mid air, would you come out of the other side and simply fall to the ground, or would you go flying in the direction of the orange portal on the other side?

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I used to think to the contrary but now i agree.
In Euclidean space, the box plops.
But portals are noneuclidean, therefore the box flys because space is moving around the box.