Ragebait answers only
The object going into the portal has no momentum so it would be A.
No momentum in relation to what? Momentum doesn’t exist in isolation.
Momentum relatively to the source game engine grid.
“speedy thing go in, speedy thing come out.”
So A.
As I said, there is no “speed” in isolation. Speed is a relative property of an object and a reference frame (i.e. another object, like e.g. a planet)
In this particular case it is speed with respect to the fixed reference frame of the game.
To the space outside of the blue portal. Moving the orange portal doesn’t drag the whole surroundings, so assuming both places are on the same planet, the momentum of the box in relations to both places is the same
Moving the orange portal kinda does ‘drag the whole surroundings’. It moves an entire universe.
The cube is stationary relative to the universe of the platform it’s on, but it has momentum relative to the universe through the portal. The question is which universe is the cube in? What is the boundary of the portal surface?
As Optozorax taught us, gravity must act through the portal.
Well, it doesn’t in the only source of knowledge we have: the game Portal. I don’t know enough about gravitational forces to have a coherent theory on it, gravitational waves moving through space-time is a bit beyound my real understanding. But in the game if you put a portal on a ceiling, it doesn’t “suck” you until you’re throuth it, so there it isolates gravity somehow.
At this point, I consider Optozorax’ research the primary source of how portals work. If the games disagree, they’re wrong.
If you stick to the premise that the portals exist in a universe with GR, then we can pay much know that space-time is locally flat in and around at least the middle parts of the portal. We know this because things don’t get fucked up when they’re going through.
Portals aren’t real and so work however you want them to, but people rarely consistently apply their models.
I’d say A given how they work in the games though. Only the object’s momentum is conserved. The portal doesn’t transfer momentum. There may be a slight breeze coming out of the blue end as the column of air in front of the portal-plate is pushed in, but the cube is just going to flop out.
Speedy thing did not go in
neither, no portal rules were given. Please create an Aperture support ticket.
“Speedy thing goes in, speedy thing comes out” as the cube isn’t a speedy thing (no speed lines) going in, it won’t be a speedy thing coming out.
Neither. The cube is not making contact with the portal at all, since the portal is on a stationary block with some speedy lines drawn on it. Speedy lines don’t nake thingy go fast - everyone witb a gel-hairstyle knows that.
EVERY GIT KNOWS FAST LINES AIN’T DA TRICK! RED IZ WOT MAKES THINGS GO FAST!!!
Next you’ll claim stink lines don’t make something stinky.
These heathens! Arguing against centuries of line faith! Draw heat wave lines around them and make them burn up!
The real answer is the enemies we made along the way
Was going to post the correct Answers (A) but then looked at the post and though na. But if you want to know more about portals and how they would work in real life check this out. Great guy.
and his answer: https://optozorax.github.io/portal/?scene=speed_model
It would probably be A because of Newton’s first law of motion.
because of that law it is B ;). the cube “teleports” into the reference frame of after the portal and in this frame it is highly in motion.
it’s like you trying to jump on to a moving train, you first need to match the trains velocity (speaking relative to earth), then you are at rest in the trains frame.
this kind of thoughts is what makes special relativity so cumbersome.
You can’t put a portal on a moving platform, it has to stop moving first, so neither can happen… Unless the moving surface is a celestial body at least the size of The Moon, I guess?
What!? What if the platform is a train on Earth?
Everyone else is wrong. (Ragebait.)
Speed of approach = speed of separation.
If the box left the blue portal at a slower speed than it entered the yellow one, the top of the box would be moving slower than the bottom of the box, which would compact the box dramatically during the transition, but we can see that its size is unchanged and it is still square.
The top of the box is pushed rapidly out of the blue portal by the bottom of the box being thrust into the yellow portal. (The bottom of the box is pulled rapidly up into the air by the top of the box which is already moving quickly.)
It’s a superposition of both states until you make a measurement
The top of that masher is clearly protecting the cube from the rain, so I’m not sure how the rain is expected to shoot the cube out as in option B.
A.
It should be a.
Imagine if the cube was actually a long rod and the orange portal start with the column half way inside it. Then the orange portal moves, in this case it would be very odd for the rod to jump in this scenario like in case b, the thing you would expect would be for the rod to stay still (besides tipping sideways a bit) consistent with case a.
you know only engineer/computer science nerds post on lemmy because nobody has called out that the box looks like the box from hellraiser.
no matter what you do to it, you’ll probably end up in hell.
