So, Yea Forums? which is it?

so, Yea Forums? which is it?

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who cares; get a life, loser

B

youtube.com/watch?v=0TZd95BCKMY

>who cares; get a life, loser

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literally B

Neither. Portals couldn't function in reality. Any answer would have to be using in game physics.

what launches the box out?

I spoke to einstein about this in my latest seance and he told me it is a

the ground slam force

"Speedy thing does in, speedy thing goes out"
If the bottom platform was moving, it'd be a different story. Everyone else is trolling

what ground slam force? it never touches the ground

More interesting scenario.

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the "in game test" didn't actually have good methodology, i don't remember how the webm went but i remember the guy fucking it up to the point that his "conclusion" was worthless.

It's A. Why the fuck would it be B?

oh sorry

This one is also A. Don't be dumb.

B

Post the rocket one.

A, since the velocity of the box is 0 so it stays zero.

Still A. why is this even a question.

scientists of Yea Forums, explore the utility potentials of developing portal-blade based weapons

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>Portals can't do thing except that one time in the game where they did thing

This. Real world physics would have the object move as the box is moving relative to the portal and would keep moving. In the game engine it would stop.

The rule that portals can't be placed on moving surfaces (which was broke by the second game) would keep physics in check better. If they could move laterally I think that would be fine, but in the "flow direction" of the portal it begins to cause a lot of problems.

Wait, this isn't even a portal puzzle. It's literally just a fucking hole falling onto it.
A.

oh
oh shit he's right

everything's a moving surface

If a door frame moved towards and around you, you wouldn’t just gain speed exiting it.
If a tunnel moved towards and around you, you wouldn’t just gain speed exiting it.
If a wormhole moved towards and around you, you wouldn’t just gain speed exiting it.
If a portal moved towards and around you, you wouldn’t just gain speed exiting it.

I have a masters degree in theoretical physics

Obviously B

>Instantly proves that Yea Forums is full of retards.

You just found a way to launch rockets in space I think.

Same thing

You are correct but to state that portals are the same as tunnels and door frames is wrong. Portals are the only thing were one end can move completely independent of the other, while also having absolutely zero space in-between them.

A

would it really slice you if you landed on the 'middle' of the portal?

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Rationality: because a portal is a wormhole. imagine that just to the other side of the orange portal, someone is standing there. from their point of view they're stationary with respect to the orange portal. now, they see the box rushing toward them when they look into the portal. so, when that box crosses the threshold from one side to the other it doesn't stop rushing toward them it continues to rush toward them so they would see it on their side rushing toward them.

Well i'm guessing the middle of the portal is 1 atom thick/thin, like a piece of paper if you will. so... it would be very uncomfortable if you landed on it yes. all depend on speed.

The portal is rushing them towards the box.

The "speedy thing", relatively speaking, is the entire world on the other side of the portal (again, relatively speaking).
It's the reason you don't get yanked out of the portal at 1000m/s perpindicular to the trajectory of the moon during Lunacy. After all, the moon IS one giant portalable surface that IS moving.

If we wake B to be true then you'd also have to treat an object in front of the "exit" portal as also being in fast motion towards the "entry" portal and when the piston stopped it would go flying into the box as well because relative to one another's reference points both are moving at high speeds towards the other stationary point.

It simply becomes nonsensical to make portals impart kinetic energy via their motion.

The box problem doesn't fully showcase how nonsensical portals function.
If a rocket was travelling 1000 m/s towards the blue portal that was travelling 999 m/s away from the rocket, what would happen if the orange portal was stationary?
Would the rocket emerge at 1 m/s? Or at 1000 m/s?

1 m/s

So the portal affected it's momentum. When does the rocket begin to accelerate back up to 1000 m/s?

Probably around the same time that Chell and all the Wheatley debris decides to instantly rocket to 1000m/s to match the moon's orbital speed during the Climax of the game, despite entering at only a few meters per second

Exactly. There is no answer. Portals could not exist in real life. Arguing over how they would work in reality is pointless. It's literally the same as arguing how magic would work.

How is that affecting its momentum? It's still moving at 1000 m/s

>It's literally the same as arguing how magic would work.

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>arguing about theoretical mechanics is pointless
And so are video games. Yet here we are, on a video game board, discussing video games because it's enjoyable

HOLY BASED

The orange portal is stationary. The rocket is entering the blue portal at 1 m/s. But the rocket is traveling at 1000 m/s relative to the orange portal. What speed would the rocket leave the orange portal at?

wtf, how did he get away with being this redpilled

1m/s

the truth is that portals cannot move relative to each other

1000 m/s, the same speed the rocket is actually moving

If you say 1 m/s then the portal affected it's momentum. If you say 1000 m/s then the rocket is emerging from the orange portal faster than it is entering the blue portal. Does the rocket become stretched out then?

a dev has answered this before. his answer was that the portal physics dont resemble real physics at all since they dont know shit about that and is instead using a custom form of physics, he also thinks B should happen with how the game is designed

Either way, the portals are effecting what is moving through them. Which doesn't make sense.

That's not even a portal. A

I leaves at 1 m/s until its thrusters are out, then goes 1000m/s

If B is true, the you wouldn't even need for the box to go through the portal for it to go flying.

As well, someone standing on the orange end of the portal would go flying towards the platform the piston slams down onto if B physics were true.

What if it has multiple thrusters spaced out along it's body?

Even then, that means the portal affected it's momentum, meaning "B" would be correct in the original problem. Which doesn't make sense.

Why do people making this thread?

B, I doubt your body would be ripped apart like that though.

PUT ME IN THE SCREENCAP

No, it leaves the orange portal at the rate of speed it passes through the blue one at. This idea that the magnitude variable of Speed is immutable, despite Trajectory routinely changing despite no apparent force is ridiculous. Besides, portals routinely change how much Potential Energy a portal has.
So if you wanna say it changed its momentum, then that's absolutely what it did.
Fact of the matter, everything in Portal can be explained by using Points of References and treating any areas on the other sides of portals as new areas. It's why portals are rendered with the camera facing the direction they do, because an object following a trajectory won't just suddenly change directions upon entering it.

HOLY FUCK WTFWTFWTF

HOLY BAASED

PUT ME IN THE SCREENCAP NOW WTFFFF

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Then it gains a proportional amount of speed for the thruster that got through, making it enter the blue portal faster and leave the orange portal faster

>1 atom thick
>like a piece of paper

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retards who choose b haven't played portal. portals do not have any affect on the momentum of the object that passes through it. speedy thing goes in, speedy thing comes out. the cube is not a speedy thing coming in, therefore it is not a speedy thing coming out.

>478417527
RED AND PILLED

ban wojack faggots

Then the segments of the rocket that have not entered the blue portal yet would begin to move faster than 1000 m/s. Therefore the portals have affected the rocket's momentum and B is the correct answer.

Bumping my own post because seriously. There's no portal in that image. It's a block with a hole cut in the middle. It's A

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I would like every Wojak poster here to know that you are the cancer that's killing Yea Forums.

Bfags believe it to be B because from the perspective of the exit portal, the cube is moving towards it. You can see this effect in the bottom animation of However, I argue, that to resolve the paradox of the portal moving towards the object on one end and the object moving towards the portal on the other, that it is actually space which constricts between the portal and the object.

Thank you.

uh, in english doc?

They don't move faster, they just enter the portal faster than the relative 1 m/s they were going. The whole rocket still moves at the same speed

>portals break the laws of physics (duh) therefore even discussing the theoretics of it is a waste of time
Also he apparently never played the part where you create infinite potential energy by infinitely falling through two portals stacked on top of each other.

B seems to conform a little more to how real physics would maybe work but in something like a video game engine you have an absolute kinetic frame of reference that all motion is relative to. This absolute frame of reference is always going to be the room/ground/world.

So in OP's picture the box is sitting *absolutely* still while the portal is moving towards it and thus it never gains any velocity relative to our absolute frame of reference, it just changes places.

In real physics, all motion is relative and there is no such thing as absolute motion -- as far as we understand now, anyway. So in real life it's irrelevant whether the portal is moving towards the box or the box is moving towards the portal, they're both the same thing. Thus, the relative motion of the box actually instantaneously shifts as it is passing through the portal, which isn't really a thing that would be possible in real life, but it would make sense that the box would gain some velocity from one frame of kinetic reference to the other.

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Let's say you were an outside observer.
Before the first set of thrusters passed through the blue portal, what would be the relative speeds from all viewpoints? To the orange portal, the tip of the rocket is emerging at 1 m/s. To the blue portal, the rest of the rocket is entering at 1 m/s. And to you, the rest of the rocket is moving at 1000 m/s. Sound right?
Now once the first set of thrusters is through, what will the relative speeds become? To the other portal, the rocket is now emerging at >1 m/s. To the blue portal it is now entering at >1 m/s. But to you, the rocket is now moving at >1000 m/s. Where does this increase in speed come from?

>ban wojack faggots

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i do not like this image one bit

>it would make sense that the box would gain some velocity from one frame of kinetic reference to the other.
This would only determine how fast the box is "revealed" on the other side of the portal, not impart lift off.

It's sort of like if you punched your arm through a hula hoop very fast. The speed at which your arm moves and "emerges" is still a high velocity, but it's not going to go flying off your shoulder.

>B seems to conform a little more to how real physics would maybe work
It's completely nonsensical. We know the box isn't actually moving towards the portal, but from the perspective of the exit portal it seemingly does. This makes zero sense, as explained by

Even then, it doesn't make sense for portals to change only one component of an object's velocity (being a vector with two scalar components, direction and magnitude). It's demonstrated constantly and consistently in the games that portals can change the Direction of objects passing through them in respect to the Orientation Delta of the two portals. Why then, can they somehow NOT change the magnitude (speed) of an object passing through them in respect to the Speed Delta of the two portals?
Problem here is that there are no puzzles where there is a difference in speed between two portals (other than the neurotoxin room and Lunacy chapter), but pretty much every puzzle has you placing portals at two different orientations.
In other words, it doesn't make sense for it to NOT be 'B'.

ban wojack faggots.

>We know the box isn't actually moving towards the portal
But it is, because in reality all motion is relative. This isn't a video game.

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>But to you, the rocket is now moving at >1000 m/s
No, if I was on the rocket, I'd still be going the same 1000 m/s. It looks like the rocket moves faster from the two portals' perspectives, but the actual rocket speed stays the same

see

You are not one the rocket. You are watching as it passes. As more thrusters enter the blue portal, then as you say it would begin to enter the blue portal faster. Therefore relative to you, the rocket's later half would begin to move faster than 1000 m/s.

So from my perspective, the rocket moves >1000 m/s, but the actual rocket doesn't gain speed.

>HOOP argument

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>real world physics would propel an object at rest without anything acting on it
lmao just lmao