Which one?
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Which one?
The rocket is flying by
or
the rocket explodes on the back of the portal wall which is magically flying in the air
>>321504092
A
I like his hat and I want to take it for myself.
>>321504092
>the rocket explodes on the back of the portal wall which is magically flying in the air
it's fixed to the front of the rocket
>>321504173
The orange portal is placed on a tile attached to the nose cone of the rocket.
>>321504092
have you even played portal 2?
>>321504092
B.
Why would air not pass through the portal? There's no barrier.
Well we know air travels through portals and so do pressure differences because of the end of Portal 2 with the moon portal.
So B.
Whata moronic thread? Do you even play videogames?
>>321504092
My intuition tells me B but that seems to suggest that the cube will fly out in the other 'problem'.
>>321504092
A and B mixed. the continuous push of air through the portal would create a high pressure area and cause wind in multiple directions, not just one perpendicular to the portal
Op needs to elaborate if the portal is attached to the rocket or not and it's floating in the air
If it's attached, it's B because of air coming inside from the rocket moving in the air.
If it's just floating in the air and the rocket explodes on impact on the portal, then A because the explosion occurs behind the wall in sky and there is no way you can feel the explosion "because you are behind the wall in air"
>>321504414
>>321504416
Does subscribing to B in the OP situation also commit you to B in this situation?
>>321504379
The moon is always in motion :^)
>>321504940
Velocity is maintained through portals, and relativity dictates that the portal falling on the cube is equivalent to the cube falling on the portal, so B seems rational though counter-intuitive.
>>321505435
But the cube has no velocity. It would be like a doorway falling around the cube. It doesn't impart a force on the cube, so A makes the most logical sense.
>>321504940
No, that would be A.
Pic from OP would be B.
>>321504940
OP is B, yours is A.
>>321505626
The closing rate is the same regardless of whether it's the portal or the cube that is in motion.
Cube climbing at X speed towards portal = portal falling at X speed towards cube.
>>321505628
Why is one A and the other B though? If air blasts out the blue portal why doesn't the cube?
>>321504940
By principle the answer is B, but the result would look more like A.
>>321504092
C
Portals can't stay open when the platform they are on is in motion.
Portals arent real.
>>321505764
You're thinking of this backwards. The portal doesn't put any force on objects that pass through it. Your scenario only makes sense in a collision, where the travelling object can enact a force on the stationary object.
In this instance, the portal, which has been shown throughout the series to maintain the force already acted on an object but not itself affect the forces on an object, would not put its velocity on the cube.
Again, it's like a doorway falling around an object.
>>321504940
Portals fizzle when they move.
>>321505774
Because the wall stop once it hits the other wall, losing velocity and force. If it kept going through the the cube would fly, but it stops once it is slammed down, thus the cube just plops
>>321505823
The part with the lasers and the moving platforms say otherwise retard
>>321505774
Are you retarded? A doesnt do anything to the cube other than teleport it while B is literally sucking up a bunch of air like your mom sucks cock on saturday
>>321504092
C
That's unaerodynamic as fuck and the rocket crashes before the test can begin.
>>321505764
What you said is only true when the cube and portal never meet.
It's like saying that throwing a coin into a well will give the well velocity. In the portal case it's just reversed, you're throwing a well on a coin.
>>321506040
Screw you, I will make a well, that MOVES when you throw coins into it!
B
air is matter, so it'd be blasted into the portal at high speeds
>>321504940
A, this would be like dropping a hula hoop over a box, B would be if you're throwing the box through the hoop.
>>321506040
>It's like saying that throwing a coin into a well will give the well velocity.
not him, but surely it does?
it's just so tiny that the force of a coin hitting a well can't actually move it - but it does impart force on it (hence why water is pushed out of the way if it's in the well, or why the bottom can be chipped by the collision, etc.)
>>321505931
Right, but there is a period where the cube is emerging from the blue end at the speed that the orange end is going down. Why does that momentum disappear the moment the whole cube is through?
>>321506138
But the air isn't travelling at a velocity
>>321505930
This is the only right answer.
>portals on moving platforms
>portals with real life physics
>>321506223
but the portal is
that energy has to be maintained, it can't disappear
>>321504940
If you don't immediately realize that A and B are identical in all ways bar the velocity the cube is traveling then you have no part discussing physics or claiming you have any knowledge of physics.
>>321506038
Actuallt its more aerodynamic: The portal area has no drag
>>321506309
it has the drag of the room it opens into
>>321506209
Because it's the orange portal that's moving, not the blue portal.
Someone should make a mod out of this and see what happens.
>No matter how many times A is proven correct trolls still keep arguing for B
BAIT THREAD
HIDE REPORT IGNORE
>>321506154
>hoola hoop meme
Show me a hoola hoop that can create unlimited energy from nothing.
>>321505930
But they're always moving, the planet is moving and rotating around the sun which is also moving in a galaxy which is also moving
Why do the Portals only care about movement relative to the room?
>>321506390
they did, the game can't handle it right.
>>321506209
BECAUSE THE MOMENTUM IS ON THE PISTON YOU FUCKING RETARD
>>321506425
>Why do the Portals only care about movement relative to the room?
BECAUSE IT'S A FUCKING VIDEO GAME JOE
>>321506470
So where does this momentum go?
>>321506406
Are you talking about the OP?
>>321506409
Grab a box, slam it down onto an object. Nothing happens.
It's the same shit.
>>321506209
This one's definitely trickier and I think we may not have enough information to know how this would work.
There are a few ways of thinking about this but to answer your question, the momentum is on the portal, not the air itself, so the portal's movement through the air shouldn't enact a force on the air passing through it, given what we understand of portals.
If you had a portal moving through the air at high speeds and a bird through flew the portal moving the opposite direction at the same speed, given what we understand, the bird wouldn't come out of the other end twice as quickly because portals don't add momentum. It would seems as though it just flew in through a window.
Assuming that's true, the air shouldn't be rushing out of the blue side any faster than if the orange portal were sitting still.
>>321506539
You missed the part where the blue end of the portal isn't moving didn't you?
Get's them every time.
>>321506507
THE SAME PLACE THE MOMENTUM OF A HAMMER SMASHING YOUR FACE IN GOES FAGGOT
>>321506507
It disappears because portal magic
>>321506559
So you're saying on that basis that OP should be A? Or at least not B. That seems weird.
>>321506539
No it's not, you can actively create energy with portals by abusing gravity.
Portals do not follow proper rules and physics.
>>321506635
>Lose argument
>"ARGH STOP BEING RIGHT"
>VIOLENCE
This is an 18+ website.
Portals don't real you fucking retarded.
>>321506586
No, you're adding a facet that isn't true -- portals do not cause objects to "travel" as your diagram suggests. The portal moves around the object and the portal maintains any velocity the object previously had. If your diagram were true, everything that passed through a portal would become a stream of matter as it surpassed light speed in order to end up in another place instantly.
>>321506746
What is theoretical physics
>>321505774
OP is B because it keeps pulling in more and more air causing the wind like effect. Basically the same thing as if >>321504414 was dropping onto a pile of cubes they would fill the room and push whatever is infront of the blue portal away as long as the orange portal is moving.
>>321506672
Again, I think we don't have enough information to really know, but I would assume that's correct based on how we understand portals to work.
>>321506406
>>321504940
To be fair anon, there's no possible way to explain the answer on either side. If it were as simple as a hula hoop one side goes in comes out the other side it would make sense.
But we're talking about a hula hoop where one side of the hula hoop is moving and the other side isn't. So the pocket space it travels across is changing shape relative to the speed that one portal is moving. Which means each and every atomic slice of the cube would have to move a different distance within the portal than the last slice of atoms had to travel, effectively slicing the cube into atomic cheese and doing
>>321506375
that
>>321506746
explain this then, memelord.
>>321506819
I have a theoretical degree in physics
I like it how even almost nine years on some cunt can still make up a variation on the cube question and it's guaranteed to get people mad.
>>321505823
Not true, portal 2 has several parts with moving portals
>>321506276
>i didnt actually play the game the post
>>321506934
>fake portal gun.jpg
HMM I WONDER
>>321506819
Pushing carts and pressing buttons.
>>321504092
This problem is so fucking highly complicated and theoretical that we shouldn't even be discussing it given that we still don't even have a concrete answer to >>321504940
This is seriously what you're asking.
>>321506746
My dick in your mouth real retarded
>>321505626
>It doesn't impart a force on the cube
How do you know that?
We have no full understanding of the science behind the portals in Portal
>>321506967
not hearing an explanation man. you said something retarded and got called out. accept it and move on.
>>321505930
They do in Portal 2. But only in a scripted sequence because Source can't the calculations for moving portals.
>>321506931
As I mentioned above, you're adding the assumption that passing through a portal causes some degree of travel or movement of the object. As we understand it, it's more like two points in space connecting via the portal. Think of it as two tubes next to one another, then someone presses the sides of the tubes together and cuts a hole in them. You've simply created a shortcut to the other tube.
If you've ever read A Wrinkle in Time, it's kinda like a tesseract, where two points of space fold into one another.
we would need to know much more about how portals work to answer that
>>321506817
This isn't a normal portal like which is presented in the game, this image's portal isn't a hula hoop and this stumps you faggots every time.
Velocity is a calculation based on relativity, generally you have a given base frame of relativity being the Earth's but in this case the two rooms have vastly different frames.
The room that the blue portal is in is traveling relative to the room the orange portal is in. If two people were standing in view of each other on either side they would see the other person accelerating towards each other when from their perspectives they are stationary.
When the cube transitions into the blue portal it's introduced to a frame which is essentially traveling backwards compared to it's last, it enters a frame which has negative [piston's speed] compared to the cube, so of course from the frame of reference in the blue room, the cube has velocity and it always had velocity when the piston in the orange portal's room began moving.
If you're struggling to accept this then answer this question, how does the cube leave the blue portal if it has no velocity?
>>321504940
I think this one is B
Instead of the object accelerating relevant to the portal (object moving closer to the portal), which means B would happen
Now the portal accelerates to the object, making B happen.
>>321507070
I'm >>321506559. I full acknowledge that we're working off of incomplete information but everything we've been told about portals is that they maintain an object's velocity as it passes through. Until we have moving portals where we can pass through perpendicularly, we can't know for sure, but I would be hard pressed to imagine that we'd come out the other end travelling more quickly than when we entered. Everything we've been shown suggest that it should be like falling through a doorway or hole, even if it were travelling directly at you.
>>321507134
They don't work on moving platforms, the planetary movement doesn't interfere as is shown in the game.
This negates all of this thread. Show me an interesting puzzle that doesn't involve moving platforms.
>>321506997
Concrete answer to the moving box is A.
Its B because of the act of air pressure
The walls of the rocket are pushing around the air, and it only has to places to go, over the sides of the wall or into the portal
the portal is not turning the air into wind, it is the air itself that is pushing other air molecules to return to equal air pressure
>>321506997
Grab a random trash bag and fling it around holding it it so it can be filled with air.
Notice how air is passing through it (or trying to, at least)? It's the same thing. Just imagine that blue portal is at the entrance of the bag and the orange portal is right after it.
It's not complex at all.
>>321504940
Can't someone just make this ingame?
>>321506891
>as long as the orange portal is moving.
And they all instantly stop when it does? You're violating locality.
>>321506891
If the wind effect is caused by air entering the orange side pushing on the air in the room, that suggests that stationary objects on the orange side transfer momentum to objects on the blue side, but if you can't transfer momentum you don't have in the first place how is this possible? If you think A is correct for one, you gotta think A is correct for the other.
>>321507335
>Portals fizzle when the surface they are on moves
>Earth constantly moves, doesn't fizzle
???
>>321507273
It stays sitting on the platform or slightly slides down the slope since it's now in the new gravitational degree of the other portal.
>>321507358
>Can't someone just make this ingame?
The piston and slanted portal surface exist in game.
Get to it anon. We'll wait.is there a user map community for portal?
>>321506507
Given that you can send an object to a higher portal as many times as you want, and thus generate infinite amounts of gravitational potential energy, I'm pretty sure conservation laws don't work.
>>321507474
I'm >>321506559 and I'd have to agree. If A is true for the box example, it makes sense that A must be true for OP's example based on what we understand.
>>321507357
But there are inconsistencies. What the fuck happens in the piston-and-box scenario if there's a wall right behind the portal on the slant?
The wall has no momentum. The box has no momentum. When the piston forces the box through the portal, an object with no momentum encounters another object with no momentum. Which object wins?
Does the piston just stop fucking moving, held fast by an invisible, impenetrable force, because it is impossible for an object with no momentum to break through another object with no momentum?
>>321507486
That's after it left the blue portal.
How did it leave the blue portal?
The blue portal isn't moving, and according to you people the cube isn't moving either.
Velocity is maintained through portals.
In OP it would be B because the object traveling through the portal, wind, is moving quickly because the rocket pushing the portal is moving quickly. You could say the portal is remaining stationary and things are moving through it quickly.
In that other one the object is stationary and the portal is moving towards it quickly. In that one it's A because the cube maintains its velocity of 0 and then falls to the ground because the other portal is tilted. The speed of the portal is irrelevant.
>>321507485
>your ass jiggles when the stool it is on moves
>earth constantly moves, doesn't jiggle
????
>>321506289
That's like saying tying a holahoop to the top of the car would cause the air going through the back to turn into a jet engine
The air has no energy. The portal is not transferring momentum to the air, only passing around it.
>>321504940
>tfw you go through a door and gets flinged away by a sudden increase in velocity
every singel fucking time! god i hate doors!
>>321507358
>>321507516
They did this years ago. The portal just mashes against the cube and does fucking nothing because you cant transport objects through moving portals ingame.
Now what would happen /v/?
>>321504092
The orange portal wouldn't work on a moving surface
>>321507302
>they maintain an object's velocity as it passes through
And velocity is relative. The cube goes into the portal with velocity relative to its entrance, and therefore must leave it with velocity relative to its exit. It's just like slamming a hoop down around an object - if it were possible to have the hoop's entrance be in motion relative to its exit.
>>321507516
I've definitely seen videos of these situations recreated in Garry's mod. No idea what conclusions they drew though.
>>321506819
Math proving math.
>>321507593
>holahoop
How is it such an astounding number of people cannot grasp the concept that these portal physics images aren't hula hoops?
Is this some elaborate "I was merely pretending" shit going on with hundreds of people in unison?
>>321507623
B, obviously
>piston pushing box vertically suddenly comes to a standstill
>>321507552
The images portal is a Portal portal and that's how it would behave in the game :)
>>321507595
How do you go through a door while you arent moving?
>>321507647
>>321507625
>>321507623
>>321507621
>>321507516
>>321507358
>>321504092
https://www.youtube.com/watch?v=3MhNrOFjl-U
Hint: Its neither.
>>321507560
The air molecules in the OP have no initial net velocity though, so surely by your reasoning in the second example you would have to think A for the first example.
>>321507560
But the air isn't actually moving. The portal is moving, not the air. If velocity is maintained through portals and portals do not put a force on object (as far as we know) then A must be true.
Again, if you added a bird into that scenario that is flying at the portal at the same speed in the opposite direction, it wouldn't suddenly gain double the velocity coming out of the blue side. It would be as if it passed through a window or door.
The momentum pushing the epxlosion outwards would actually create a vacuum sucking air through the blue side to the orange side.
>>321507730
Like this.
https://www.youtube.com/watch?v=UsSh9vvGcfw
>>321507715
The game doesn't have and isn't designed to have in engine portals with one side moving and one side stationary.
>>321504092
OP has to be B since air pressure is already shown to work through portals.
I don't know enough about physics to answer the cube meme question that's always reposted, but it sounds like the whole premise of portals breaks the laws of physics enough that there isn't a good answer.
>>321507704
How is it not?
It's one half of a holahoop, with the other half being an instantaneous transportation of matter and force to another point in space
>>321507593
the rocket and the wall the portal is on is creating pressure on the air around it
the air moves from the high pressure area to the low pressure on the other side of the portal, thus the wind
the box has no kind of pressure or force acting on it
>>321507593
>The air has no energy. The portal is not transferring momentum to the air, only passing around it.
Then how do infinite-fall loops work? Clearly, movement through portals can impart energy. If two stationary portals and a moving object can do it, why not a stationary object and a moving portal? Relatively, it's the same situation.
>>321507623
This one seems quite clearly B.
Although it seems to be identical to the original question, having a set of portals that move relative to each other creates problems since it's never clear how they interact with each other (hence why they don't work in-game)
>>321504379
I have.
Remember that puzzle where you shoot a portal at moving tiles to have a laser cut some pipes?
I do.
Remember shooting the moon?
I do.
Maybe YOU should try playing the game.
>>321507829
Because a hula hoop's two sides are contained on a single frame of reference.
>>321507812
And that's why the image is nonsensical. The developers were aware of it being physically impossible and that's why the portals are only stationary.
>>321507740
AIR PRESSURE YOU DENSE FUCKING NIGGER
THE WALL MOVING THROUGH THE AIR IS PUSHING THE WIND AND FORCING IT THROUGH THE PORTAL
>>321504092
b. because pic related
>>321507812
in portal 2when you cut the tubes that flow the neurotoxin
one portal is moving, other is stationary
>>321507881
>the box has no kind of pressure or force acting on it
But it can clearly apply a force to objects on the other side of the portal. For instance if you stuck your face over the blue end, the cube would hit it pretty hard as it emerges from the portal depending on how fast the orange piston was moving.
>>321507940
It's not nonsensical, it's just utterly impractical.
It still abides by the rules of physics, assuming it has an impossibly infinite amount of energy which is safely contained and powering it.
>>321508045
>implying when you hit that portal it just doesn't trigger an event to happen
>>321507737
This pisses the living fuck out of me
>>321508026
But then you're moving the air. It's an entirely different question.
>>321507884
ITS NOT THE PORTAL IMPARTING ENERGY
ITS FUCKING GRAVITY YOU TURBO TARD
WITH NO GROUND TO STOP YOU YOU REACH TERMINAL VELOCITY
>>321507982
So why isn't it forcing the cube through the portal?
>>321508106
even if it's an event, it's still a moving portal
>>321507595
Yeah, I remember that time a door to another point in space flew at me. This is a regular occurrence and I am very familiar with the mechanics involved.
>>321504092
Nice way to get Afags to rethink :^)
>>321508117
>surprised that valve is an awful dev/company
I have bad news for you
>>321508070
But at that point you're adding a collision, meaning two objects can enact force on one another.
The two scenarios are not the same.
The portal STOPS MOVING after the box goes through. Meanwhile, the portal KEEPS MOVING in the rocket scenario.
This makes all the difference.
>>321504940
Anyone who answered A didn't play the game.
B is literally one of the main mechanics in the first game and they have a whole segment dedicated to it.
>>321508186
It'd be like if a house was propelled at you with the front door open and you jumped to avoid the threshold breaking your ankles.
Then people sitting comfortably in the living room took a picture of your entry.
>>321508070
no
your face would be crushed because of the momentum of the piston, when you stick your face through the portal its effectively at the same speed as the piston
once again you are confusing where the energy and momentum lies
>>321504940
no because the gravitational pull on gas compared to a fully solid cube is immensely less than said cube
>>321506586
>>321507273
>>321508076
>get's them everytime
>stumps you faggots
>according to you people
>utterly impractical
Not him and I agree with you...but jesus fuck, you're a lost cause.
Is this a fine example of the amazing American Education System â„¢?
Do they really teach you kids basic physics but completely ignore teaching you relativity?
>>321504092
Air would be forced in by movement of the rocket. You'd get B for sure.
>>321504940
Depends on point of reference.
>>321508121
the air is moving towards the portal in the OP, space is relative, the fixed point we're observing here is the area around the exit portal
>>321508260
What if you think of the cube as a tightly-packed bunch of molecules. The molecules newly emerging from the blue end push up on the molecules that passed through in front of them, imparting momentum.
>>321508397
A and B are both in the same point of reference.
>>321508124
Moving through a portal interface to a higher point increases potential energy without work being done. The argument that movement through portals cannot impart energy doesn't work.
>>321508125
BECAUSE THERE ISNT ENOUGH AIR PRESSURE
ITS LIKE ASKING WHY CAN YOU BLOW A FEATHER OFF A DESK BUT YOU CANT BLOW OFF A BOWLING BALL
>>321508363
The problem has nothing to do with gravity you dense fuck.
>>321508279
One of the main mechanics involves travelling through moving portals?
>>321508296
You misunderstand, you don't put your face through the portal, you just put it very close to the blue end. How does the emerging cube impart a force on your face if it has no momentum?
>>321508279
NO
NO
NOOOOO
FUCK OFFF
>>321504092
The answer is B for both questions.
If you disagree you are literally retarded and should immediately fellate a pistol to improve the overall IQ of our species.
>>321508437
Not him and I know the answer is B but what you think here as "Without work being done" was the work of gravitational vectors.
>>321508270
How does that make a difference without violating locality or causality? The matter that has already left the portal can't just magically know that the other end has stopped moving.
>>321508464
damn you're so right
![[EveTaku] Kyousou Giga TV - 07 (1280x720 x264-10 AAC)[FA1CF047].mkv_snapshot_14.53_[2014.01.23_15.14.02].png](https://i.imgur.com/GIvm6R4.png "[EveTaku] Kyousou Giga TV - 07 (1280x720 x264-10 AAC)[FA1CF047].mkv snapshot 14.53 [2014.01.23 15.14.02]")
>>321508464
it does though, you fucking idiot
>>321507737
I guess that's the answer. Because portals aren't real.
>>321508467
>implying they all aren't moving
>implying the moon isn't moving
>>321508505
>immediately fellate a pistol
>>321508125
Because that's a WEIGHTED companion cube, the speed of the moving portal platform is presumably unable to generate enough of a vacuum from air being pressured into the moving portal to lift the heavy cube up and out of the stationary portal.
Do keep in mind that the cube is heavy enough to only be slowly scraped across the smooth testing-room floors when being nudged by a woman at running speed.
>>321504092
neither. the bomb would destroy the object the portal is on and would close the orange portal
>>321508521
No, that's the gravitational potential energy becoming kinetic energy. Moving an object through a portal to a higher point increases its potential energy without requiring equivalent work (weight x distance) done to overcome gravity.
>>321508605
it's not a bomb it's a wall with a portal on it being pushed through the sky by a rocket
If you put a portal facing a black hole, will you get pulled in facing the other side?
A
Rocket exhaust and flames will go back to the other side where the rocket came from. The portal is his 'shield'.
>>321508431
I'm saying the only guesses you can make about how this could work, since portals don't real and we can't really know, are based on either the entry portal as a reference point, where the cube doesn't move and you just lower a portal around it and nothing happens, or the exit portal as a reference, where the entire world + cube is coming at it and the world stops while the cube keeps going and is sent flying.
>>321508556
>>321508570
Have you guys never thrown a ball in your life?
Gravity existing doesn't stop all velocity and momentum dead on the ground.
>>321508664
Nevermind, I'm retarded.
That shit was attached to the rocket I see, ahhh.
>>321508483
BECAUSE YOUR FACE IS WHAT HAS MOMENTUM RELATIVE TO THE CUBE
NO MATTER HOW FAR YOUR FACE IS AWAY FROM THE PORTAL IT STILL ALL THE RELATIVE MOMENTUM OF THE PISTON AS LONG AS THE PISTON IS MOVING
ITS NOT THE BOX SMASHING INTO YOUR FACE
ITS YOUR FACE SMASHING INTO THE BOX
>>321508704
no iplayed vidya all my lifemy father never loved me
>>321508704
they're not throwing the cube, they're dropping a portal on top of it which is the same as dropping something you're holding, literally the only way to make it fly like that is if the portal is going down at near or at terminal velocity
>>321508676
You've just answered the problem with your second example, friend. Because the results are viewed from the room of the blue room.
>>321508556
>>321508570
The question is about whether the cube is stationary or in motion when a moving portal is sent its way.
Gravity has absolutely no bearing on whether it would be A or B. The only thing it's responsible for is the *plop* in A, or the cube eventually falling in B.
>>321507474
>>321507542
Basically my thinking was that of B in pic related. More and more air is entering the portal moving the old air to the back of the room.
But after visualizing it I think it might actually be C since there is in fact already air in the room, and there is nothing actually forcing the new air in. The air pressure would be equal to or a bit greater than the outside so the outside air wouldn't go into the room.
I don't even know anymore.
>>321508827
The result would be different depending on what portal you look at?
>>321508815
>literally the only way to make it fly like that is if the portal is going down at near or at terminal velocity
What says isn't?
A and B are exactly the same besides the speed at which the cube leaves the blue portal. It's just bait for people to answer A and then display their lack of knowledge. That's all it's been since its creation but unfortunately it worked too well.
>>321508704
hold a ball on the palm of your hand
then slowly tilt your palm down
does the ball shoot off at 50mph or does it fall to the floor?
>>321508796
So then why, if you agree the entire world on the blue side has momentum relative to the emerging cube, does the world not all move past the cube causing the box to appear to fly out, resulting in situation B?
>>321508937
What if the ball exits my stationary hand horizontally at 50mph like what happens in the blue portal's room??
>>321508934
>lack of knowledge
i literally just told you the ONLY time that B. would be correct would be when the portal is moving super fucking fast, so MOST of the time the answer would be A.
>>321504092
Definitely B. Assuming the fucked aerodynamics of that rocket work long enough to gain any worthwhile speed, the portal does not filter out any elements thus creating a fan-like effect.
>>321504940
Cube might move a little but not launch due to being stationary as the portal slams towards it. Remember, the portal does not filter or manipulate anything.
>>321508885
The air on the front of the rocket would be compressed, causing a high pressure zone. That would push air into the room. Fluid dynamics aren't the same as large solids being pushed around.
>>321508885
>there is nothing actually forcing the new air in
there is though, the walls the portal is on is pushing the airing and creating a high density, and then it rapidily moves to the low density of the room
>>321504092
There would obviously be some wind coming in, but air can't just flow into air, the pressure in the room would keep most of the wind out.
>>321508992
That doesn't happen since:
>The portal is moving, not the ball
>The portal stops moving its slammed down into the surface where the ball is
Like ahoola hoop
>>321509080
But the blue portal isn't moving.
>>321509032
wait, so you're arguing that a force is applied on the cube, just not enough to counteract it's weight?
im not sure i understand your position here
>>321508992
stand in a truck bed going at 50mph with a ball on the palm of your hand and tell us what happens when you tilt your hand
>>321507737
*thud*
anti-climatic
>>321509038
Imagine the wall mounted on the front of the rocket was the exact size of the portal, such that from the front there was no solid surface to press against the air, just the portal hole. Would it still create a high-pressure zone?
>>321509073
You're assuming a closed room. There is literally no reason to assume this.
>>321509071
>>321509038
But wouldnt it eventually not be enough to force the new air in? Basically starting with B and then ending at C?
>>321504940
It's A. Anyone who thinks it's B is retarded. Drop a hula hoop over a box and watch as the box leaps into the air by stealing the kinetic energy of the hula hoop.
>>321509032
You literally just agreed with me.
>>321509151
But then the ball is moving in the same reference frame as I am and this example no longer has anything to do with the original portal image.
>>321509120
yeah because gravity is involved, we're assuming that the picture is taking place inside the testing facility where all of earth's physics are taking place. judging by no scientific extrapolation, i'm assuming that the portal moving towards the cube ISN'T going down really really fast therefore when it exits the portal it doesn't have enough momentum to counteract the force of gravity still acting upon it and just flops down
>>321509032
>when the portal is moving super fucking fast
You mean like in the image in question, what with all the speed lines and shit?
Holy fuck you are dumb.
>>321509293
Reading that post is like watching your kid approach the 1000km marathon finish line only to collapse and die a meter short.
>>321509185
yes because then the wall behind the portal would be a low pressure zone, creating a high pressure around it and still forcing air through the portal
>>321509216
You might be surprised to learn that a hula hoop is not a portal.
When you drop a hula hoop around a box, the entrance and exit are both moving around the box.
With a portal, only the entrance is moving toward the box.
From the point of view of the exit of the portal, the cube is being forced through at high speed.
>>321509243
What you're doing now is assuming the portal doesn't have enough speed.
But if the portal were to have enough speed, would B happen?
>>321509351
damn you got me im trolled
>>321509293
>directing someone to your post that is immediatly after theirs
>>321509195
if the room was entirely air tight then yes
it would be filled with high pressure air and the wind would stop
>>321509243
>i'm assuming that the portal moving towards the cube ISN'T going down really really fast
Stop assuming obviously untrue shit.
>>321509420
>>321509032
yes, literally both answers can be correct we don't have enough information in the first pic, we'd need the weight of the cube and the speed at which the portal is dropping onto it also assuming that all of earth's physics still apply
>>321504092
Air enters the portal. If air is appearing on the blue side at a high enough rate it will generate a current simply because air will have to move to make space for more air. I don't really see how A could work at all.
>>321509462
You're saying it's A because it won't have enough speed to be B and I said A and B are the same besides the speed the cube exits.
I literally don't know why you think we're disagreeing.
>>321509409
The portal isn't touching the cube, so there's no way to impart any of its energy into that cube to make it go flying.
The cube would come out of the blue portal quite quickly, bu fall to the ground. The cube has no energy of its own.
>>321509195
It depends on if the blue portal is somewhere where the pressure would build or if it would be released. If they're both in open air it wouldn't stop.
>>321509409
and from the point of view of the box, a room is falling over it
if I dropped a house on you with the door open, would you suddenly shoot through the doorway?
>>321509530
We do have enough information.
And going that deep into it is kinda stupid. It's just a game
See >>321509524 for reference on speed
>>321509560
It has velocity comparative to the room it's entering.
It's sitting at 0 and then it's introduced to a frame of reference which is -100mph compared to it.
>>321505626
>cube has no velocity
depends on the poiny of reference
>>321509639
And yet it has no kinectic energy at all. It's at rest, it can't just leap into the air. It would come out at the speed of the orange portal, but would fall to the ground, not go flying across the room.
>this doorway/hula-hoop meme
these people are baiting right? people can't seriously think a doorway where both ends are moving at the same velocity is the same as a portal where both ends are moving at different velocities. nobody can be that completely and utterly retarded, right?
>>321509596
??????????
Here's a question.
What if the orange portal stops moving half way down the cube?
>>321509705
Kinetic energy is imparted onto it by the same method. Everything around it suddenly has negative kinetic energy.
Provided the piston travels fast enough it can be made to fly out.
>>321509589
You are just repeating the hula hoop comparison with different words.
I'm saying both A or B are inadequate guesses based on either the entrance or exit as a reference point, respectively.
Since portals do not exist in real life and we don't understand how they would work, we simply don't know what would happen.
>>321509705
>It would come out at the speed of the orange portal
>but would fall to the ground, not go flying across the room.
You don't know that. If the speed of the orange portal is high enough for the cube to fly across the room, then the cube obviously is going to fly.
>>321509705
>what are the laws of thermodynamics
>what is every action has an equal and opposite reaction
you're still thinking of the cube as the point of reference, the point of reference is the area outside of the blue portal
>>321509639
point of reference doesnt fucking matter
the box isnt moving, and when passes though the other side of the portal it slides down due to the force of gravity
portals conserve momentum, they do not create it
>>321509778
No it can't.
>>321506507
It doesn't travel you faggot, it wormholes through magically.
>>321508796
> AS LONG AS THE PISTON IS MOVING
How does the box know what the piston is doing? What would happen if we cut it in half as it was emerging?
>>321504092
B because winds exists
![[deanzel] Nadia - Secret of Blue Water - S01E12 [BD 1080p Dual Audio AC3-FLAC].mkv_snapshot_04.48_[2015.05.02_09.13.19].png](https://i.imgur.com/uJ6FVPZ.jpg "[deanzel] Nadia - Secret of Blue Water - S01E12 [BD 1080p Dual Audio AC3-FLAC].mkv snapshot 04.48 [2015.05.02 09.13.19]")
>>321509778
THATS NOT HOW KINETIC ENERGY WORKS YOU FUCKING RETARD
YOU CANT HAVE NEATIVE KINETIC ENERGY
>>321509705
>And yet it has no kinectic energy at all.
From the perspective of the exit portal, it does.
>>321509747
Then the cube is lifted by the velocity of the orange portal.
>>321509080
fuck the physics and videogames its a HULA hoop because you are imitating a HULA dancer to suspend the hoop
>>321509879
>you can't have negative kinetic energy
oh, so you're just stupid then.
ok.
>>321509880
Kintetic energy doesn't have anything to do with perspectives, it's not relative.
See >>321509849
>>321509747
it would stay in the same place because the forces of gravity would be equal
the portal is pushed against air at very high speed. that means a shit ton of air is entering the portal. as new air particles enters the portal, it pushes the previously air particles away, which in turn pushes the air particles before them even further away from the portal exit. its all simple air pressure.
>>321509924
energy doesn't go in a straight line, negative just means it's going backwards then.
>>321509924
my word this man is literally trying to use fucking magic to solve a puzzle
get back to me when you've finished measuring negative distances and speeds for this too
>>321509924
>>321509963
I sincerely hope you guys are joking.
>>321509959
What if the orange portal is moving fast enough as to over power gravity?
>>321509793
I do though, now shut up
>>321504940
speed is relative acceleration is constant. B is the correct answer
What happens?
>>321508990
Checkmate, atheists.
>>321509924
energy is a scalar, not a vector
it can't have direction (ie positive/negative) associated with it
>>321509948
Are you admitting this comes down to how the portals function?
>Portals act as a "door" cube flies
>portal destroys and rebuilds the cube as it exits, cube plops out
>>321510032
The kinectic momentum of the orange portal is strong enough to rip the platform from the floor.
>>321509948
>Kintetic energy doesn't have anything to do with perspectives, it's not relative
How do you know this? What research on portals with the entrance moving and the exit stationary would you cite to support this?
>>321510032
nothing since the box is tethered
>>321510032
easy
the cube stands still the moment you cut the bar attached to it, so it falls down due to gravity
And what kinda faggot tries to cut a steel bar with an ordinary scissor?
>>321510057
The cube wouldn't fly out in either case. Because the cube does not gain any energy in the process. It has the same potential energy after it moves through the portal. So it would just plop out.
![[deanzel] Nadia - Secret of Blue Water - S01E12 [BD 1080p Dual Audio AC3-FLAC].mkv_snapshot_22.27_[2015.05.02_09.06.50].png](https://i.imgur.com/YaI7Fu8.jpg "[deanzel] Nadia - Secret of Blue Water - S01E12 [BD 1080p Dual Audio AC3-FLAC].mkv snapshot 22.27 [2015.05.02 09.06.50]")
>>321509810
NO
NO
NO
SHUT UP YOU IDIOT
YOUR FUCKING SIMPLITIC HUMAN MIND THINKS YOU UNDER STAND BUT YOU DONT
FRAME OF REFERENCE DOESNT FUCKING MATTER
EVERYTHING IS ALL CONTAINED WITHIN THIS ONE UNIVERSE AND EVERY THING ITS EQUAL
THE CUBE IS JUST PHASING FROM ONE POINT OF THE UNIVERSE TO ANOTHER
THERE IS NO MOMENTUM INVOLVED
NOW SHUT THE FUCK UP
>>321509816
>point of reference doesnt fucking matter
Point of reference is literally everything you highschool dropout.
>>321509821
>>321509879
I knew using the word negative would bring this reaction, I just meant that the room's kinetic energy was traveling backwards comparatively to it.
I mean, you all have kinetic energy right now sitting at your computer, it's just that you don't feel it because you're apart of the Earth's huge frame of reference.
>>321510141
>FRAME OF REFERENCE DOESNT FUCKING MATTER
>EVERYTHING IS ALL CONTAINED WITHIN THIS ONE UNIVERSE AND EVERY THING ITS EQUAL
How you can expect anyone to reply to you seriously after this is the only perplexing mystery in this thread.
>>321510093
I know about energy, momentum and velocity. I assume that the portal works similar to a wormhole.
Depends. If you cut it above the blue portal, then this section's momentum was already stopped by the resistance of the steel bar, thus letting it fall down completely.
If you cut it below the blue portal, a part of the steel bar / cube will still gain momentum when the orange/blue portals go through it, so the cube/bar system will still have a bit of momentum - probably not enough to fly too far, though.
>>321510141
>THERE IS NO MOMENTUM INVOLVED
Yes there is.
One end of the portal is moving, therefore from the perspective of the other end of the portal the entire universe is moving.
>>321510140
For movement to happen, there must be momentum.
The question is more if the portal COULD take the motionless cube. According to portal, I can't, and the portal gets stuck.
>>321510032
the cube falls straight down due to gravity in the blue portal room.
the pole is equal length in both instances, so you can assume that it has fully extended and has come to a stop upon both platforms colliding in the orange portal room. it therefore has no velocity propelling it upwards in the blue portal room.
>>321510220
Was responding to >>321510032
What is it with these threads attracting huge retards?Yes I am aware of the irony in making this post.
>>321504092
Don't worry OP. I fixed your dumbass shit for you.
How does gravity and portals work?
If I have one on the ceiling and one on the floor why do I fall through them instead of hovering in the middle?
>>321510141
Post more Nadia.
>>321510319
>instead of hovering in the middle?
Because portals don't form some sort of gravity exclusion barrier in the space between the surface they are on.
>>321510319
they don't work
portals are perpetual motion machines in the games
>>321510319
now why in the fuck would hover in the middle?
You walk over the ground portal, which is effectively a hole and gravity pulls you in.
You appear on the ceiling portal and gravity pulls you to the ground again
>>321510212
Are wormholes real? Is there any observational evidence of them? You have experience with wormholes?
>>321504092
H. rocket can't fly because its momentum is sucked through the portal
![[EG]Outlaw_Star_03_BD(1080p_10bit_DualAudio)[974EE1F1].mkv_snapshot_18.03_[2015.04.29_06.31.25].png](https://i.imgur.com/Hii9tHo.jpg "[EG]Outlaw Star 03 BD(1080p 10bit DualAudio)[974EE1F1].mkv snapshot 18.03 [2015.04.29 06.31.25]")
>>321510225
BUT THE ENTIRE UNIVERSE ALSO CONTAINS THE OTHER SIDE OF THE PORTAL
SO IT IS JUST HOOLA HOOPA FALLING OVER A BOX
THE ONLY PROBLEM IS YOU ARE THINKING YOU HUMAN LEVEL POINTS OF REFERENCES HAVE AN IMPACT ON PHYSICS
>>321510289
This makes the least sense out of anything in the thread, and that's saying something.
>>321509705
>it has no kinectic energy
K=E-E0
where K is the kinetic energy
E is Etot=mc^2√1-v^2/c^2
and E0 is E0=mc^2
kinetic energy is the transfer of energy from a moving object to a stationary one
>>321510448
I have experience with your mom's wormhole
lmao getrekt
>>321510289
B is the correct answer
>>321510319
Both halves of your body would be pulled the same way. No reason to hover in the middle.
>>321510289
that makes no sense
>>321510467
>SO IT IS JUST HOOLA HOOPA
When someone throws a hula hoop at you, you don't see things on the other side of it maintaining their distance with the hoop and accelerating at you.
Although YOU might right now, with the amount of drugs you're on.
![[deanzel] Nadia - Secret of Blue Water - S01E04 [BD 1080p Dual Audio AC3-FLAC].mkv_snapshot_06.10_[2015.05.01_10.49.39].png](https://i.imgur.com/p0nG823.jpg "[deanzel] Nadia - Secret of Blue Water - S01E04 [BD 1080p Dual Audio AC3-FLAC].mkv snapshot 06.10 [2015.05.01 10.49.39]")
>>321510331
I DONT HAVE MUCH
>>321510319
What?
If you had two on the ground something could float in the middle.
If you had two on the ceiling and an object had equal mass on both sides of the portal, it could float in the middle.
One on the ceiling and one on the ground wouldn't do shit.
>>321510524
Pretty sure it's what happens when you break the window in a flying plane's cockpit though.
>>321510520
This assumes gravity can act through the back of the portal.
>>321510471
>>321510524
It's the same shit as moon portal. Sorry both of you didn't play the game.
>>321510654
The rocket is flying in the Earth's atmosphere, not a (near) vaccum like on the moon.
>>321510520
What if you grabbed your feet?
>>321510614
This makes even less sense.
Can you draw what you mean?
>>321510626
No it doesn't
The question you are asking is why if you put a portal on the ground in two spots what happens.
Which is you gets stuck in the middle.
Gravity doesn't push down on anything, it just pulls you toward the center of whatever mass has gravity.
>>321510654
Is it? The end of the portal that's on the moon has no atmosphere, the rocket in the OP is clearly traveling in Earths atmosphere, hence the clouds.
>>321510476
>kinetic energy is the transfer of energy from a moving object to a stationary one
Back to school with you.
>>321510626
It doesn't have to act through anything. Even if you thought withouth portals, both halves of your body would still be attracted by the earth.
>>321510546
There you go again
what the human eyes see has no effect on physics
you are once again making the fallacy that your small point of reference has a bearing on the universe at large
the rooms are not moving, the piston is the only object that is
>>321510626
It's acting on you equally from all the ground which is around the portal.
They're all pulling on you symmetrically assuming you center of gravity is dead center with the portal, but they're all pulling down diagonally as well. Those same diagonal vectors are also effecting you through the portal on the ceiling.
I'd draw lines but I'm lazy.
>>321510654
last time i checked the moon is covered in a vacuum and cannot exert an air pressure vi air currents which are greater or equal to the pressures on the ground
>>321510737
If your head and feet are oth being pulled by gravity you would float, though I imagine you'd feel pretty fucking uncomfortable.
I want all Bfags to leave
>>321510726
Then you'd get your feet grabbed. You'd still fall down though, it wouldn't change anything.
>>321510701
>>321510760
It's still a problem regarding pressure. This is what happens when you open a plane's door while it's flying. You just get sucked in.
>>321510620
thats because the plane is at a high altitude where the air pressure is lower than what is inside the plane
>>321510815
>Physics has no effect on light
This is the part where we're done, I bang a cute university student and you hang yourself for dropping out of highschool to sell weed.
>>321510748
Yes it does.
How does it act as a hole otherwise?
>>321510887
Yes but because the rocket is moving there's an area of high pressure at the tip where the portal is.
Hence why the air gets pushed in the portal.
>>321510815
>what the human eyes see has no effect on physics
top kek
which one?
>>321510895
Pretty sure the rocket is at a higher altitude than the guy on the ground too.
>>321510916
>tfw my parent sells weed legally
>makes more money than anyone else in the family despite the fact that my uncle has a masters for an engineering job
Don't underestimate drug money man.
Real question
>>321510858
Bfag here, comic was fun
Going through a hula hoop isn't the same because the speed of the hula hoop's "bottom" hoop is the same as the speed of the hula hoop's "top" hoop. The orange and blue portals aren't going the same speed.
Running on a conveyor and then jumping on the ground tends to not go very well. Same shit happens here.
>>321510916
the human eye and the brain processes you brain goes though to make sense of what you see =/= light
pretty sure you are just baiting me at this point, goodbye
>>321510916
>DUDE I HAD SEX DUDE
I remember when people would ridicule you for this. I remember when this place wasn't a normie infested shithole.
>>321510887
>This is what happens when you open a plane's door while it's flying
Bernoulli effect caused by air travelling perpendicular to the door on the side of the plane. In the rocket example, the air is coming directly at the portal, not sideways.
>>321510953
What does a hole have to do with anything? Holes don't have any property.
The earth is pulling you toward it.
If you don't have anything to prevent you from moving ie. a ground to stand on you will be pulled.
If you aren't standing on ANYTHING what would happen? You will fall towards the earth.
The portals aren't solid they are a 2D connection point.
>>321511036
that would just continue falling endlessly since the weights would pull on themselves
>>321511056
You get smooshed by yourself.
>>321511056
b, obviously, his own body would crush himself.
>>321511056
The space within the portals would become next to nothing, so you'd be crushed.
>>321510978
It doesn't.
>>321511056
you stomp yourself to death
>>321511112
I think the floor and ceiling are two seperate cases he drew. They would balance if that's the case.
>>321510895
The lack of pressure from high up to down here isn't enough to pull you out like this. What really matters is that the plane is sort of pushing the air particles out of its way, which can be assimilated to an even greater lack of pressure.
>>321511056
B for sure, you would get crushed against yourself.
>>321511036
Okay yeah this is just a troll post. Which portal goes to which numb nuts? If its in a cross pattern they would keep falling downwards.
>>321511103
You're not stood above the earth, you're above a portal which is beneath another. You're in an infinite tunnel.
So where does the gravity originate from?
>>321504940
anyone got the pepe edit of this?
>>321511152
>what is observer effect
>>321510984
B obviously. That dick looks tasty.
>>321511210
The ceiling example and floor example are separate, you mong.
>>321506425
fixed reference frame
>>321511247
from the earth under the portal
>>321511096
Aren't the particles in front of the plane also going sideways where there is less pressure? Wouldn't that, in turn, attract you in front (and then sideways) ?
>>321511247
Oh so you just don't understand the concept of 2D. You HAVE to equate it to a 3D object. There is no tunnel in a portal. You are either on one side or the other side. You are never "inside" of the portal because there is no inside.
>>321511328
explain the moon shot
>>321511056
A spiritually
B materialistically
>>321511247
You kidding? There's a whole lot of Earth outside of the thin column directly beneath your feet, you know.
>>321511247
>what is Newton's law of universal gravitation
>what is Einstein's general theory of relativity
>what is equivalence principle
>>321511247
Wow man you are really retarded. If you cut a circle straight down from where you are standing to the other side of the Earth you would still fall towards the center of the earth. Gravity doesn't work in a straight line.
>>321511247
Earth
>>321511372
>You are either on one side or the other side.
You are on both sides at once while traveling through the portal.
>>321506425
acceleration=!speed
>>321510626
Gravity doesn't originate from a fixed point at the distance we are from the core you mongoloid.
Gravity is the atraction you get from being near a gigantic mass. And that is simplified.
>>321504092
I know this is just some people acting retarded but seriously people holy fuck.
Think of the air as water, if you move a portal through a lake it's basically gonna act like a drain. If the water/air has no motion before entering the portal it has no motion after leaving the portal unless affected by whatever forces influences it after leaving the portal.
The only correct answer is A and B.
Depending on the volume of the chamber the person is in. You're basically scooping up air with the portal. If the air continues to be flooded into a small room you're gonna end up with enough pressure to eventually make the rocket stop since it just doesn't have enough power to force more air to enter the pocket the portal connects too.
That would be answer "B", seeing as the small room will be influenced by the huge amount of particles being "layered" into it and the stickman would eventually be pushed against the well by pressure .
Answer A would appear if the person was standing out in the open and the air had enough room and the concentration of "air" molecules were small enough so that it could just dissapate. Seeing as the air itself has no speed the molecules would just appear next to each other and get influenced by their own charges and just move away.
>>321511372
>>321511391
The planet isn't beneath you, it's behind the portal.
Remember that gravity is caused by the curvature of spacetime; if gravity were to act as you suggest then there would be a discontinuity in the spacetime between the portals which is unphysical. Think of the portals as wormholes and you'll start to understand why the gravity of the planet cannot affect someone between the portals - it would be a gravitational deadzone.
>>321504940
A is the correct answer.
I made the exact same scenario in my level. If we just use the game physics to real life, that's the answer.
>>321504940
I still think it's B just because the sheer force of the two plates slamming together would pop the cube into the air, like silverware bouncing if you slammed a table.
>>321504940
can't someone just make a custom level where it is possible to do this?
>>321511578
>enough pressure to eventually make the rocket stop
What? Surely when the pressure on the blue side equals the pressure on the orange side it would be no different to just having a solid surface on the tip of the rocket rather than a hole, it wouldn't cause the rocket to stop.
>>321511491
Actually, if gravity is transferred through particles as some may think, then it would work in a linear manner.
Still wouldn't prevent you from falling though.
>turn the blue portal upside down
>the cube just stays where it is
You people ACTUALLY believe this.
>>321511706
They did.
https://www.youtube.com/watch?v=3MhNrOFjl-U
>>321511247
mate, if you can explain how gravity propogates you should have better things to do than arguing about videogames with strangers on the internet
like winning a nobel prize
>>321511578
There is no planetary mass beneath you, just a tunnel of air.
>>321511731
i agree, it would slow down the rocket because of the aerodynamics of the plate that holds the portal in place
>>321511603
>think of the portals as wormholes
>think of something way more complicated physically than portals because its 3 dimensional instead of 2
>then something that has nothing to do with wormholes and is something I just pulled out of my ass
Think of the portals as wormholes and you will understand how gravity exists on both sides of a wormhole. Unless you meant BLACK HOLE which has its own gravity which is why it distorts space time.
>>321511760
that wasn't properly executed, the portal needs to be angled like in the example
>>321511741
What you've done here, is to introduce the pull of a second earth just above the original.
>>321511731
Yeah, fucked that up.
Kept seeing the air in motion unto itself pushing against the rocket.
If the air is stationary unto itself it would just act a gigantic filled moving block if the rocket has enough power to get over the friction seeing as portal would then just be a "plate of air" with enough pressure to keep other molecules out.
I was thinking too linear that if the portal were in a tube.
What the fuck happens, /v/?
My guess is the glass melts.
>>321511857
Wouldn't work regardless due to Valve being a bunch of hacks.
>>321511854
Black holes have nothing to do with this why would you even bring that up?
>>321511857
It doesn't really need to. Either the cube would go through the portal and stay in place(A), or it would fly up (and then fall back down - B).
The game's mechanics weren't made to take into account moving portals, though. The only thing you ever took out of a portal was a laser, which doesn't "move" in the game.
>>321504092
>All those people saying B
answer is - it depends.
if the man is out in the open next to a wall in the open, then yes, it's B.
if the man is in an enclosed room which contains that standing wall, the answer is A. The air pressure in the room will increase until the point where the air flows around the wall and then around the rocket, not blowing air into the room anymore.
>>321511779
The Earth's net gravitational pull isn't dictated by just the matter directly in between you and the center point. If you took a huge apple corer and punched out a cylinder through the Earth, there would still be a net gravitational force acting towards the center caused by all the remaining stuff.
>>321511687
NOW WE ARE GETTING SOMEWHERE FINALLY SOMEONE POST AN ACTUALLY LOGICAL REASON FOR B
THE PORTAL DOESNT IMPART THE FORCE
THES THE PISTON HITTING THE PLATFORM, CREATING A SHOCK-WAVE THAT KNOCKS THE CUBE UP
but this answer depends on the hardness of the metal, it can still be A if the metal is rigid enough and doesnt allow for a shockwave to propel up the cube
>>321511903
From your point of view, it's below you.
And it's still an earth, I guess. There's also one above you, so hey, I guess all the infinite earths will balance out and you'll end up keeping just the one you're "on" right now, keeping a somewhat-normal gravity.
>>321511857
You're just being daft for no reason.
What has no motion before the portal will have no movement after the portal unless influenced by something like gravity.
The game itself just doesn't allow for this shit, since valve just made them doors and not actual "Wormholes". Seeing as wormholes themselves couldn't fucking move.
The very possibilty of a "moving" "portal" in physics is absurd.
>>321512028
>THE PORTAL DOESNT IMPART THE FORCE
How do you know?
>>321512031
it would bring the ceiling down
>>321511915
Air flows through the tube.
https://www.youtube.com/watch?v=Tgcb4A1TT1o
>>321512024
>implying the entirety of the Earth wouldn't collapse in on itself without a stable magnetic iron core
>>321512024
You're still acting under the assumption that gravity acts through portals.
We've already seen in Portal 2 that it doesn't.
>>321512031
>There's also one above you, so hey
No there isn't.
>>321512132
But the air molecules would accelerate near indefinitely.
>>321511987
Even in an enclosed room it's still immediately B, just the pressure will eventually equalize on both sides of the portal over time. As long as there's a pressure differential it has to be B.
![[EveSenshi] Rozen Maiden Zurückspulen - 10 (10-bit 720p AAC)[18E3C9A5].mkv_snapshot_24.09_[2013.09.13_00.04.05].jpg](https://i.imgur.com/UM3RByu.jpg "[EveSenshi] Rozen Maiden Zurückspulen - 10 (10-bit 720p AAC)[18E3C9A5].mkv snapshot 24.09 [2013.09.13 00.04.05]")
>>321512081
how does the portal impart the force of it falling onto the cube?
>inb4 "but from the frame of reference from the blue portal.."
>>321511741
>>321511603
You are making a leap of thought that particle gravity is true. If that is the case then the portals don't matter. You could have anything that would block those portals for arguments sake. There is not a lot of backing for particle gravity in GENERAL science. So assuming that particle gravity is true and that it comes from a single point at the epicenter of the earth then your argument makes sense. However, you want to discuss particle theory instead of this portal stuff so don't complicate things by assuming everyone is using the same model of gravity as you are.
>>321512178
do you know how big the core is?
its alot bigger than a portal, you arnt cutting out the core, you are cutting a hole through it
>>321512334
*You could have anything that would block those particles for arguments sake.
but what happens if i do this?
>>321512181
It doesn't need to act through portals, the Earth on either side of the portal would still attract you.
>>321512413
the portals fizzle from being too close
>>321512413
For arguments sake, if it worked, then it would get halfway in and the wall from the orange portal would block the portal from going all the way through. If you had a smaller orange portal then it would create smaller and smaller portals forever.
>>321512315
>how does the portal impart the force of it falling onto the cube?
I'm not saying it does or doesn't.
I'm saying no one fucking knows because portals aren't real, and the only guesses anyone has are based on either the entrance or exit as a frame of reference.
How can you not understand this?
>>321512413
That's kinda hot.
>>321512031
From my point of view the jedi are evil.
>>321512525
then why are you even posting in this thread?
the choice is between a or b, choose a side or fuck off
>itt: https://www.youtube.com/watch?v=5hfYJsQAhl0
And for my next trick, I will make a Monty Hall thread.
>>321511915
That depends on the volume of air, you've got in there.
Full tube would just make it stop itself and act like a simple pressurised canister.
If the air molecules could move they'd just float a bit. Air doesn't have the mass too actually accelerate that much. Unless you're willing to wait millenia.
>>321512612
I'm here to shit on people who act real positive about one answer or the other.
>>321512612
If its about making a choice then you have already made yours so you should fuck off. If its about using logic and deciding how things would work then you don't need to explain the details of something that doesn't exist. You have to use what you already know which would mean that YOU ARE WRONG.
>>321512696
>Full tube would just make it stop itself and act like a simple pressurised canister
Why would the air stop itself if it were pressurized? All of the air would be falling.
>>321512671
Full comic pls.
>>321512610
What is the outcome now, /v/?
>>321512413
You become an absolute madman
>>321512771
Ah, yeah.
Forgot the infinity loop concept.
I was just think that if it were filled to the brim the charges of the molecules would just push the molecules coming into the top from the bottom back up. But if it just simply contued downward then yes. Eventually friction will melt the glass.
>>321512879
What happens now is I can't stop laughing.
Goddammit anon.
>>321512879
The blue lightsaber penetrates Anakin's boipussy
>>321512817
https://e621.net/pool/show/3738
Enjoy, degenerate-kun.
>>321512472
>>321512334
By doing this you eliminate more than half the planet's mass and draw the center of gravity much closer (consider a sphere with a conical section removed). This isn't what is shown in the games at all.
>>321512879
The high ground in modern day combat and in starwars is a concept ya nigger. Anakin can't get too obiwan without making a move that makes him lose control of his mobility. Even if he were to jump in the portal he'd still sacrifce his movement as he's falling towards the ground.
A side step from obiwand and it's all over.
>>321512879
Vader impaled through the torso
Palpatine unable to save Vader
Kylo Ren has no reason to turn evil and kill his father Han Solo
>>321513085
then how did Obi-wan beat Darth Maul?
he was hanging below him and had to jump over him and behind him, why didnt Darth Maul just stab him when he had no control?
>>321513050
The games don't have real gravity.
Its digital xyz and z pulls you downward.
There is no gravity just programmed downward acceleration.
>>321513182
Plot armor.
Welcome to the reason people hate the prequels.
>>321513206
MOVING THE GOAL POST.
Never was it ever said that these problems were only allowed to be solved in game logic. Since moving portals don't do anything.
>>321513296
Uhhh.
>>321513050
>This isn't what is shown in the games at all.
>>321513381
Ohw, that guy wasn't me just though you were the idiot contiously asking stupid questions that made the thread continue into infinity.
My sincere apologies.
>>321512879
Fuck
>>321513296
If you don't have a point of reference then this is literally pointless because you can make anything up.
>>321504940
A.
Direct quote from Portal:
>Spectacular. You appear to understand how a portal affects forward momentum, or to be more precise, how it does not.
As portals have no effect on momentum it would indeed be like a hula hoop falling on the cube.
>>321504940
B
Doesn't matter if the portal or cube is moving, the point is the cube and the portal are closing distance.
Speedy thing goes in, speedy thing comes out.
>>321513524
Then why would it hurt to put your face in front of the blue end if the cube coming out of it has no momentum, and therefore no force?
>>321512879
He still has the high ground. It's even worse now because if Anakin jumps into the portal then OG1 will know before Anakin even gets inside the portal unless Anakin plans to faint and land around the portal and jump towards OG1.
Portals don't "move" objects. They merely connect two places of space.
They are like doors. Why do you think they are different? Because they bend space?
>>321513730
He is saying the portals have no effect on momentum. Meaning they cant add or subtract it. The cube has whatever momentum it entered in the portal with.
>>321513843
Because normal doors don't allow one side of the door to move whilst the other stays still.
>>321513246
Plot armor is a relatively minor issue, and even present in the original trilogy with storm troopers being totally incapable of hitting any major good guy, for just one example.
Prequel trilogy's issues are boring and unlikable 2D characters with few if any defining characteristics, boring political shit no one cares about, poor cinematography, poor pacing, poor dialogue, perhaps the worst romance in all of cinema, confusing or unclear character motivations, over-reliance on CG effects in place of story telling, lightsaber duels basically becoming dances with glowing batons, etc.
>>321513843
Because one of them is moving.
Doors don't move on one side.
>>321513246
It's a chekhov's gun. George masterfully introduced Obi-wan jumping over Darth Maul and cutting him in half from the low ground so that we knew when Anakin tried it on him Obi-wan would have the advantage.
>>321513887
No he's saying that since the cube has no momentum going into the orange end it should not be able to apply any force to anything coming out of the blue end.
>>321513524
In the original Portal, portal's not being allowed on moving surfaces is a rule, so you can't necessarily know anything about how a moving portal would work.
>>321513887
Is this not the same problem as if the orange portal was not moving but the room was moving upwards?
>>321513524
no it's explained in portal that they conserve the magnitude of momentum, not the direction
>>321513983
Yes, that is exactly what is occurring from the perspective of the exit portal.
>>321512771
The more the air is dense in there, the more the forces exerted by each particle on all the others are gonna "take over" gravity when it comes to affecting the whole system.
It's easy to imagine if you focus on a single particle. Every single one is being "pushed around" by it's neighbouring particles, which in turn are being pushed around by their neighbours and so on.
There our initial partcle is actually, at any given moment, being given a lot of force and at the same time giving away a lot, resulting in a random fast motion called a Brownian motion.
Now when it comes to infinite loop I don't trust my guess to be exact but I think it wouldn't make any difference because the particles near the portal would simply encounter a resistance from their neighbours on the other side of the portal.
The instance of all the particles falling down simultaneously is not entirely wrong but it's what you would call a liminal situation. You would need every single one of them to have exactly zero velocity at the beginning of the experiment, exactly the same mass and zero EM interaction so that they don't repel each other. That's what in physics you call an ideal gas if I remember correctly, but they behave differently from real gases.
>>321514018
Therefore B would occur, no?
>>321514018
but the exit doesnt matter, only the entry does
>>321514067
Who knows?
>>321514068
Why should only one half of the portal matter?
>>321513976
It doesn't matter if the portal moves. It's a fixed point from one to another. Even if the portal is moving only the connection point is moving. Still wouldn't insert momentum and force (besides a very very minor amount due to the passage of air)
>>321514102
because thats how portals work.
they have no effect on momentum, fast things go in fast and come out fast, slow things go in slow and come out slow
>>321514024
Yes, the air molecules would push and repel each other and shit, but they would still all be being pulled down near infinitely while doing it as far as I can see.
The only meaningful hang-up would be friction from the glass.
Seriously, if the wall of a house falls down, but your standing where the window is, will you magically fly up when you go through it?
>>321514178
Oh so if something is closing distance with the entrance rapidly, like the cube, it will increase distance with the exit rapidly. I see now.
>>321514067
It would be A.
Imagine instead of a portal there being a hole in the wall.
There is no momentum for you or the platform you are standing on or the exit.
>>321514178
>they have no effect on momentum, fast things go in fast and come out fast, slow things go in slow and come out slow
That rule comes from a game where the portals cannot be placed on a moving surface.
>>321514270
If the house falls over you, lets say there's no ground and it continues to move after you have passed through the door, then from the reference frame of the house yes you will be shooting upwards.
>>321512413
Like this
>>321514348
It doesn't matter if the portal is moving or not. There is no magical momentum transference from a falling portal.
Only a rising platform would cause momentum in the cube. Use your brain. The object is only speedy if it is actually moving. A falling portal is literally just a falling door.
>>321514321
no
the point of reference the portal cares about is the cube itself, not from where you are standing at the blue portal
a better way to describe it is not the cube flying up towards the room, instead you and the room are falling onto it
>>321504940
If the orange portal stamps down at 100mph then the box has to exit the blue side at 100mph. The box isn't going to instantly lose all that momentum the instant it fully exits the portal.
It's B.
>>321514394
That's stupid if there is no ground I'd be falling with the house.
Anyway it doesn't matter the house perspective, because your perspective is the only one that matters in this situation.
>>321514469
but from my perspective the cube is coming at me fast, so the cube is fast
>>321514408
Pulling a portal through itself.
Could you line up a chain so that it's perpetually going into and coming out of itself?
>>321514493
So why doesn't the room continue to 'fall past' the cube after the cube enters the room, causing the cube to appear to be moving.
>>321514548
It may look like it's coming in fast from the exit portal, that doesn't mean it actually is. Just the doorway is falling fast.
>>321514469
It does matter, because each half of the portal is a different point of reference.
Only the entrance portal is anything like a "falling door" or "hula hoop" or whatever other example.
>>321514506
The box doesn't have any momentum though. You are only assuming it does. From your perspective it's the entire exit of the blue box falling towards you. From the rooms perspective you are falling towards IT but neither of you have any momentum. It would just be like the whole room fell around you all of a sudden. You would just fall down the slope.
>>321514554
because the platform stops the piston
>>321514638
But by that point the cube is already completely through the portal, so what's happening on the other side shouldn't matter.
Imagine that instead of slamming into the thing that the cube is sitting on, the portal keeps going past it for a little bit.
So from the other perspective you've got this massive rod shooting out of the portal at a 45• angle. When it stops moving, won't the inertia of the cube keep it going for a bit? Because then it's gaining momentum on the OTHER side of the portal.
>>321514627
Think of it this way: The box has no momentum, but the entire universe around the box does, as it was moved by virtue of one half of the portal being moved over it.
The more I think about one side, the more the other side seems reasonable.
>>321514608
and the exit portal is just the other side of the falling door
you have a perspective biased on the blue side, and that is why you think the cube will shoot out of it, but that is wrong
>>321514714
exactly, and the box had no momentum before passing through, and it will not gain any once it has passed through
>>321512413
Take a napkin.
Fold it.
Shove one side of the napkin through the other side.
>>321514828
the box is always in the same universe tough, just at two different points
Objects can't pass through moving portals,only light
>>321504940
The cube has no momentum.
The portal is a hole that doesn't create pressure onto the block.
So it would plop out.
You guys are thinking to human about this. You assume because if something flies toward you it has momentum. You are making an assumption. All the momentum was the portal falling and then hitting a platform. Momentum doesn't transfer to something based on visual cues. The wall that has the portal on it transfers all of its energy to the ground when it hits it. If the was a hole in the wall instead of a portal it would be the same thing. Just because something LOOKS like it has momentum doesn't mean it actually does. You can both not have any momentum and still be moving. That's the whole point of a moving portal.
>>321514903
>and the exit portal is just the other side of the falling door
Yeah, except the exit isn't falling with the entrance, because it's a portal, you dingus.
>you have a perspective biased on the blue side
You have a perspective biased on the orange side.
I have no bias for one or the other here. I think we can't know what will happen because portals aren't real and the only guesses we can make are based on either the orange or blue portal as a reference point.
All I'm doing is pointing out the reference point you're totally ignoring.
>>321514998
>the box is always in the same universe tough, just at two different points
Yes, and one of those points is in motion.
>>321514243
Well, since gravity exerts a downwards force I suppose that if we let the system go on indefinitely, the partcles' downwards acceleration would eventually overcome their EM force, so everything would begin to speed down, yeah.
>>321515350
>Yes, and one of those points is in motion.
and the box isnt, so the box doesnt move
>>321515449
From the perspective of half of the portal the box is in motion.
Why do you ignore this?
What happens when the piston overtakes the runner?
>>321515350
>You have a perspective biased on the orange side.
yes, the side where the box originally was, the side where it has no momentum, the only side that matters when determining the outcome of it when it passes through the portal
>>321515527
because the only point of reference that matters is the box itself, and its not moving.
the perspective of the blue side is an illusion, it makes you see motion where there is none.
>>321515350
The portal isn't in motion though. It's 2 dimensional. It doesn't interact in the 3rd dimension. You can't have a portal on nothing because of this. The portal isn't what is falling. It's the entire room on the other side. But from both of your perspectives neither of you are moving and neither of you have any momentum. Or both of you have opposite momentum which resets to 0 as you pass through.
>>321505930
>>321506271
>>321506425
>>321507095
http://youtube.com/watch?v=CDNrPU06c6c
sv_allow_mobile_portals 1
>>321515562
What happens if someone running slower than the piston tries to run through it?
>>321515728
I guess it would be like jumping onto the end of a treadmill?
>>321507737
well that's disappointing
>>321515809
Surely not because that sends you going backwards through the portal, and the correctness of case A demonstrates that doesn't happen.
>>321510726
What if you fucked your own bootyhole?
>>321515916
Could you? I mean you could definitely suck your own dick but if you thrust forwards towards your ass then your ass would thrust forwards out of dick-range.
>>321515728
It would be like being in the back of a trailer truck moving in reverse. You would run forward hit the fast moving ground then fall back into the truck. (or under it because its a truck.)
>>321515916
unless your dick can extent and retract by itself every time you thrust forward your ass would too, and you would never penetrate any deeper.
>>321515716
the engine can't handle the situation retard which is why you can't normally have a portal on a moving platform in the editor
>>321516090
But we've established that the ground isn't actually moving so how does it fling you back?
Tell me /v/
Are you climbing down?
Or are you Climbing up?
>>321516003
I can suck my own dick without portals.
>>321516003
>>321516098
I suppose this would be another situation where you would need moving portals, then.
>>321516003
you could attach a portal on a moving platformor insert the portal in the ass
>>321516157
depends if you grab the rope to climb up or grab the rope to go down
>>321516198
>buttplug and a pocket pussy all in one
>>321516178
>I can suck my own dick without portals
Pics or it didn't happen.
>>321515564
>the only side that matters when determining the outcome
How do you know?
>>321515649
>because the only point of reference that matters is the box itself
The box itself moves through the blue portal.
What this means depends on the point of reference, and you do not know which point of reference is correct because there is nothing even remotely comparable to portals in real life.
How could you possibly know?
>>321515653
You're only considering the orange portal point of reference. You don't see or understand the other point of reference.
>>321516272
i believe he was referencing this
http://exhentai.org/g/208808/cc2fb70e60/
>>321516147
Relative to you and the truck it is.
The reverse is more trickier because the truck isn't moving. You would get scooped up by a nonmoving truck and have all of your momentum of running forward so you would kick off the stationary ground onto a moving ground and tumble until you land on the inside of the "truck".
>>321516312
because I know
>>321516285
It's not that uncommon of an ability, Anon. If your dick is average sized or larger and you're moderately flexible, you can probably do it too. I would recommend trying it on your back in bed first, but personally I'm able to do it from a seated postion as well.
>>321516450
If you cannot prove your point of view, then it's worthless.
>>321516330
well that settles it, I'm jerking off now
>>321505850
Apparently, so is your imagination.
>>321516312
>from your reference you are not moving but the room is
>from rooms reference it is not moving but you are
>assuming that only one of these can be true
0 + 0 = 0
or -9 + 9 = 0
No matter how you do the math its the same answer.
The wall doesn't have a reference point because it never interacts with you. It never hits you nor stops because of you.
Which of you three had the momentum?
A) the wall
B) you
C) the room
D) the ground you are standing in
Visually it looks like you have momentum but your eyes can be deceived.
>>321512413
SEPULCHRITUDE
>>321515562
Imagine that you are running on a treadmill.
The treadmill is going to fast so you are slowly getting close to the edge.
You are still moving fast but you touch a ground that isn't moving.
That is what would happen.
You would trip on the flat ground roll on the treadmill until you land on the blue side of the portal with your feet hanging out the orange side bouncing up and down.
>>321516664
Again, you do not see or understand the blue portal point of reference. You are just describing the orange portal point of reference in two different ways, sort of like "I am walking west over the world" and "the world is moving east beneath me".
>>321517202
The room is the blue portals reference.
Is the blue portal moving?
Are you moving?
Those are the only two perspective.
0 + 0 = 0
From the persons perspective its the blue portal moving towards him.
From the blue portals perspective its the person moving towards him.
-9 + 9 = 0
>>321517358
>Are you moving?
Yes and no.
You HAVE to move as the orange portal passes over you and you move through space, with some velocity, on the blue portal side. Refer to: >>321506507
But relative to ground you're standing on on the orange portal side, no, you don't move.
You see the problem?
>From the blue portals perspective its the person moving towards him.
No.
The blue portal point of reference would be treating everything on the orange side like a room containing a cube barreling toward you, which suddenly comes to a stop and flings the cube at you.
Think if you were to jump inside a bus, and the bus was able to immediately come to a complete stop while you were in the air. You would suddenly be moving forward through the bus.
Good discussion guys, I came on cat she hiss at penis.
