Change my mind

The side where your center of gravity is wins

do b-tards really?

AIsloppa

Speedy thing goes in, motionless thing comes out

Impossible.
/thread

inb4 someone gives me a (You)

I accept your concession.

Both sides of the frame move at the same speed, so this isn't the same. A-fags think that velocity is absolute instead of relative, which means they are uneducated.

I normally get popcorn and sour patch kids. Hope that’s okay.

b-tards are so clueless

To be fair (as fair as you can be in this case), Portal is a video game where velocity is absolute. There is one absolute reference frame, each object is its own unique entity, and velocity is a clearly defined variable for each object in the frame. All portals do is take an object and duplicate it at the other portal with its orientation shifted to match that of the portal.

There is no momentum transfer. The transported object's apparent change in velocity is due to a shift in the frame of reference.

But that violates conservation of energy

Yes, portals can do that. If you put 2 connected portals on the ceiling and floor of a room, put a waterwheel in that room, and then fill the room with water, you get infinite energy.

I would say the aspect of "energy to keep the portals open" hasn't been explored enough.

Alright, lemme just get my bone saw and ice cream scoop

the point my dear retard is that if you were to stand next to orange portal and observe the moon trough a telescope chell would be moving at incredible speed even though she went trough the portal at a relatively low speed and exited it at the same relatively low speed

do a-fags really?

To be fair (as fair as you can be in this case), Portal is a video game

no one gives a shit about video game anon, the discussion is about how this would work in portal universe not in the game engine

changing the problem to suit the solution

gotta be an A fag

buttblasted xitterfagotta

Afags could be here

I hate Afags

reddit knows B is right

twitter knows B is right

bluesky knows B is right

the only place where A frogs exist is Anon Babble

y'all are so stubborn

there are no forces to rip your head off while the portal is moving. so that does not happen at all.

only if the portal suddenly stops halfway at your neck will there be a force from the head and body moving at different velocities and the neck trying to keep them together.

Portals cannot move

bfaggotry is seated in current raw definitions of physical phenomenon. such as velocity being distance over time. what they can't understand is "v = d/t" is the simplest functional form of the equation, and exists only to simplify the process of deriving more complex equations from it.

so they "think" when an object exits a portal at a rate of [whatever], it must continue to do so, because inertia is defined as "angular momentum over angular velocity." object "moving" at d/t, thus must continue at d/t.

back when portal was new, people were talking about how mindbreaking the entire concept was, while at the same time people were intuitively picking it up and punching through the game in a matter of hours.

PORTALS
DISSAPEAR
WHEN MOVING FORDWARDS/BACKWARDS
THEY CAN ONLY MOVE UP/DOWN/SIDEWAYS WITHOUT DISSAPEARING

when an object exits a portal at a rate of [whatever], it must continue to do so, because inertia is defined as "angular momentum over angular velocity."

Pretty sure it's because half the puzzles in the game involve objects exiting portals at [whatever] rate and continuing to do so.

objects that are actually moving before they enter a portal

What's the difference in outcome between you flying into a slab of concrete vs a slab of concrete flying into you?

the difference is portals only conserve momentum. something with no momentum has nothing to "conserve."

I hope whoever came up with this set piece suffers horribly for the sin of bringing moving portals into existence and allowing this pointless theoretical bullshit argument to exist.

REEE I HATE THINK THINK HURT BRAIN NO MAEK THINK

momentum is relative to the frame of reference. to the portal (the frame of reference), the cube has momentum

that definition doesn't function if frame of reference can be altered. like if we tried to define movement as the amount of times you've had sex over time, it would always be zero, thus, not functional.

The ending of Portal has portals moving at a difference of thousands of miles per hour.

No frame of reference is altered. To the entrance portal and exit portal, the object remains at the same momentum the entire time, when you follow through the bridge in space that the portals make.

go read: en.wikipedia.org/wiki/Frame_of_reference

are you retarded? or just bad at physics

all portals in portal 1 and 2 are moving.

its extrapolating bfag "logic" to its conclusion. if by strict definition, part of an object has "moved" the instant it exits a blue portal, then it should be subject to infinite shearing force, due to how it has instantly "moved" x distance over 0 time, and it now has infinite inertia

I know that, and momentum is maintained the entire time in the B viewpoint, so long as the portals maintain their velocity. It's just a subtle difference in the way in which you measure compared to A. You just have to follow the bridges in space when measuring the velocity.

If you watch as the orange portal passes the stationary cube, you will see that the cube is still stationary even after the portal has moved passed it. You just have to keep looking through the portal. Velocity is maintained at 0 for the cube.

If you instead observe through the stationary blue portal, the cube is moving. And then when it comes through the portal it continues to move at the same velocity the entire time.

In both cases, velocity is maintained as long as you maintain the same observation. When you go from looking directly at the cube before it enters the portal to directly looking at it after it exits the portal is a non-continuous change in observation, which of course results in a different perspective.

I know that

In physics and astronomy, a frame of reference (or reference frame) is an abstract coordinate system, whose origin, orientation, and scale have been specified in physical space. It is based on a set of reference points, defined as geometric points whose position is identified both mathematically (with numerical coordinate values) and physically

what do portals do to this?

video game wormholes are scary and dangerous and therefore they don't real

Portals can accelerate, thereby changing the velocity of the entire universe observed through them.

Behold the Bfag mindset

Curiously only Afags have discussed homosexuality, dicks and buttsex here

deflecting this hard

Bfags can never just own it

nice "no you" there, rajesh

draws anal sex

clearly states he's in camp A

"those bfags thingken of buttsex..."

I'm never surprised to see the elusive Afags get outed as falseflaggers, no one would actually be that retarded

b-b-but no you

go back to your bad dragon Bcuck

would a moving portal literally eat the space it passes by?

why are you assuming that generic human figure is male? classic projection here rajesh

the only way portals can work without contradictions is if they do not move in relation to each other. Even the end of portal 2 breaks this rule
This is irrefutable so don't bother replying

contradicting what?

Again Afags display a fundamental misunderstanding of anything outside their tiny mindset.

There is this assumption that there is some force "pulling" on the guy's head as it goes through the portal.
There isn't. The only way he would be torn apart by inertia is if the portal stopped halfway through, since it would cause different parts of his body to have different speeds.

(laws of physics)

Why did a giant pizza fall out of that one?

box of condoms and a pistol

Snuff?

i thought it was a box of cigs

its funny how often this term is misunderstood. the "laws of physics" are just how we've defined things. portals fundamentally alter them.

Bfags play too much sonic

well then make up whatever arbitrary rules you want

box with 001 on it

Anon...

except there is nothing arbitrary about "thing isn't moving, so it doesn't move."

It's a cutscene and is not operating under game-code.

the "laws of physics" are just how we've defined things

lol no, post modernist nigger please die

It's an explicitly non-standard room for a specific puzzle in the 2nd game. The code used to operate during that puzzle is explicitly different, and isolated, from all other puzzles and dialogue.

Literally everything in the universe is in motion.
Atoms have size and are made of even smaller things that are also moving.

no you see the vacuum of space isn't strong enough to do this even though its a common trope in fiction so its the speed the tidally locked surface of the moon is moving in reference to the points it remains fixed upon that's causing the huge vacuum effect

the amount of hard cope here is absolutely unreal

in tenth grade you learn about how "the laws of physics" are commonly contradicted.

you know, why hasn't anyone just fucking asked gabe what the real answer is

so we're back to the point of bfaggotry where portals existing at all should rip the universe apart.

depending on who you email, the answer is different. and even then bfags will misinterpret their answers.

"movement" is relative

not how gravity works

Why is Earth blue if the combine drained the oceans?

that's not gravity, thats

How does the cube pass through the portal if it doesn't have velocity?

they leave after they get eli's brain, as teleportation is the only reason they hung around on earth.

because a portal is being dropped on it

A-fags believe B-fags say the moon proves B because Chell doesn't *plop* out on the moon side

Muh air flow!

Do not reply to A-fag bait.

another retard who's confused and thinks the webm is talking about the air pressure

Every thread we get this. Why? Are you just that big a colossal newfag or do you really just say this shit even after it gets explained a million times already.

hula hoop

hula hoop turbo

why did you swap the letters?

When the other Afag lies motionless on his back and you ride his dick, his dick is in fact moving in and out of your anus. You can't escape this.

they should

Reread at least one of those posts. It’s next level bfaggotry insisting the pressure differential between the earth and the moon isn’t enough to suck things through it, so it MUST be the difference in velocity doing that.

Why are you so fixated on gay sex?

No you're just a straw grasping idiot.

The point is that portals can't operate on an arbitrary reference frame. There's no reason the portals would treat earth's reference frame as special. The motion would be determined relative to the portal because the portal themselves wouldn't be arbitrary.

More to the point t "thing isn't moving, so it doesn't move." is suggesting the logic that portals don't change the motion of objects passing through them. But they do.

2000mph winds

Sorry, you cannot escape this A fag level retardation.

a: common trope in fiction

b: it’s not physically possible so it has to be b

Vaccumn you stupid fuck, holy shit.

It’s next level bfaggotry insisting the pressure differential between the earth and the moon isn’t enough to suck things through it

No it isn't. That's literally you being a stupid idiot who doesn't understand what the webm is saying and you just keep embarrassing yourself.

Chell gets sucked in to the portal due to the air pressure. The webm isn't disputing that because the point of the webm isn't why Chell got sucked in to begin with.

look through portal

nothing is moving

and yet it took 20+ years of discussion

sci fi trope has people flying out at 2000mph in space

14PSI difference causes 2000 mph winds

A fags are so dumb.

Another retard:

No, the entire point is looking through the portal everything would be moving

I always thought people who pushed this narrative were just trolling
but liberals have shown me how retarded people can unironically try to make sense out of the most retarded and wrong shit

Afags have demonstrated that it's the only language they understand.
If the dick moves in and out, it has velocity relative to the anus.

THERE IS LITERAL VISUAL EFFECTS OF THE WIND GOING TO THE MOON, DRAGGING SHIT UP. HOLY SHIT, YOU ARE RETARDED

Umm...But that makes no sense

This is portal, there is straight up talking robots and magical vodoo portals.

B-fag: there's a 2000 mph speed difference, that's why you fly out of the portal

gets told it's just pressure difference and that speed is nowhere to be seen

B-fag: why is everyone talking about 2000 mph winds?

This bait is so shit

THE POINT OF THE WEBM ISN'T WHY CHELL IS GETTING SUCKED THROUGH, WE KNOW THAT'S DUE TO AIR PRESSURE YOU DUMB SHIT

put orange portal on frisbee

throw it as hard as you can

put face in blue portal

Place penny on top of a glass table

Put sheet of graph paper under the table such that the penny is sitting on a given pair of coordinates

slide the graph paper around frantically underneath the penny

Bfags will tell you the penny is moving because it's changing coordinates over a given length of time in this scenario

2000 mph winds

You keep defending that they're going 2000 mph.

So do you think the winds are or aren't 2000mph?

You probably can't throw hard enough to do some damage, but i imagine it would feel unpleasant.

they'll also ignore the exact same experiment can be done with a hula hoop.

This would sooner stop the frisbee in its tracks than rip your head off.

Change my mind

ok here it goes

black men are just superior

be bfag

ignore variables

Look at the top left of the webm. What’s it there for?

50

Cutscenes supersede gameplay. Just cause you can beat a character in gameplay doesn't mean you defeat them in the cutscene, and therefore canon story.

Then explain those white lines, cmon because literal things that appear on the story hold more weight than logical things.

Portals never once move relative to each other other than this one room.

Except it doens't apply a force it applies a forced velocity the exact energy does not exist if your head is pulled at a velocity of 20m/s the energy with then dissipate through your body by it's equivalent weight

There's one true answer.

50 mph winds push Chell at 2000 mph out of portal on Moon

still thinks the winds are going 2000 mph

It's there to remind you the massive speed change that you have to undergo to in order to go from being on the earth to being at the moon. As in the speed change that happens when Chell actually passes through the portal, not the speed change where Chell is going pulled through by the air pressure, which the webm isn't disputing is due to air pressure.

Look at . Are you one of those idiots who thinks the letters got swapped around or do you actually understand that B is the one where the guy's speed changes? It's the same principle as what happens in the moon scene.

Yes, that would mean the coin moves relative to the paper.
That is how movement works.
If you accelerate your car towards a brick wall, it's correct to say the brick wall is moving relative to the car, even though only the car accelerated.

This is one of the main things that lets you know people who support A are either just trolling or legitimately retarded. Rather than using the A mechanics to explain this, they instead make a ridiculous claim that about pressure differences that are irrelevant. If they really believed in A, why wouldn't they just use that try and explain? Saying that the speed difference is just fake movement here makes just as much sense as saying the movement in the original is fake. The obvious conclusion is that people who claim the answer is A do not think the answer is A.

Ok so if the coin is moving then
I can hook up my penny to like a gear or something, and the relative motion of the penny to the graph paper will move the gear????

Portals are not real things that exists in the world and is subject to laws of physics, they are holes in space.

Also, they ignore the part where Chell goes back in.

20 mph -> 2200 mph -> 2 mph

Bfag logic is that the portal confers force upon an object it moves around

Still ignoring the white lines

Also has someone calced those 2000mph? Or you are just pulling things out of your ass.

The coin can interact with other objects and change their movement, yes.
But because we changed the reference frame to the paper so that the coin is moving while the paper is standing still, you would probably say the coin made a moving object stop rather than saying it made something move.

wrong that's a fag
b fag says physics are relative to portals

There is no force in B. Zero time means no acceleration, which means no force. B logic is that portals conserve relative velocity, which means stretching or shearing.

In case it wasn't obvious, that should be no stretching or shearing.

Yeah...the moon is calculated at 2200 mph orbit. Chell is moving with the moon. Afags claim the wind is why she is going 2200mph. So they are claiming the wind is 2200mph.

Prove that you actually believe what you are saying. Show your work for how you calculate the change in speed.

T-That is not how it works, what?

Then why is wind relevant to the topic of why Chell is moving at 2200mph?

Can this shit discussion die already? It's been made obvious years ago that literally nobody will convince anyone here that they are right and it will only end in endless bickering for years to come

A: the box isn’t moving, so it will continue to not move
B: there is a measurable amount of movement based upon faulty definitions that rely upon distances between fixed points being unchangeable so as to allow consistent measurement, so the object should magically gain momentum

It's not.

Neither, it'll just sit there peeking out of the portal

How does Chell go from the speed of the surface of the Earth (1000mph orbit) to speed of the surface of the moon (2200 mph orbit) then? And how is wind a factor?

Chell isn't moving at 2000 mph, like what? Just becfause the moon is moving at that speed doesn't mean she is moving at that speed.

A is that the motion of the box doesn't change on going through a portal, which isn't even correct

B is that the entrance velocity relative to the entrance is the exit velocity relative to the exit, which is depicted by the moon scene

If this were true any use of a portal, stationary or otherwise, would always do this. "A" retards always forget about energy being enacted upon an object and act like teleportation with extra steps somehow violates conservation of energy and adds energy to an object.
The energy of the platform is unaffected by what passes through the portal on the surface so no extra energy is being added to what goes through.

The earth is spinning

It's delta p

folds graph paper in half

punches penny through it

you now understand worms

Ah, then change my "A" statement to "B"

If I'm in a car going 60mph I'm not actually going 60mph

The moon scene is exaggerated vacuum, common in sci-fi. If it was speed, it should’ve been sucking things into the earth side, due to centrifugal force.

nearly 200 replies

Guys... its been so long can't we just settle this?

relative to each other

How does Chell go from the speed of the surface of the Earth (1000mph orbit) to speed of the surface of the moon (2200 mph orbit) then?

B. It's following B's logic to a tee.

B is that the entrance velocity relative to the entrance is the exit velocity relative to the exit, which is depicted by the moon scene

If two cards are speeding towards each other and collide frontally, if both are going at 100km/h or if one is going at 20 km/h and the other 180km/h, the result is the same because either car is going at 200km/h relative to the other car.

Guess what?
Fuck you all
Here's exactly how the portal works

grab a piece of paper

make two circles on one side

cut a hole inside both circles

fold paper as to align both sides

portal as its depict by the game

Have fun (or not)

Stop replying and start report the trolls you fucking idiots.

Earth wind have to suprass earth movement speed to push me

Fuark, who knew that I was such a beast...

You can’t cure autism and the autistic can’t comprehend the idea that something that fundamentally contradicts the “laws” (fundamental definitions) of physics requires new definitions.

If you walk on an airplane you don't suddenly gain plane speed + plane speed + walk speed.
You just get plane speed + walk speed. B is doing the former.

What are you talking about?

Wait, do you believe this because people stop replying to you when you start displaying non-ironic retardation?

I just realized I asked the wrong person to show their work. I apologize for my mistake.

B is impossible. If it worked this way, just entering a portal would rip you apart since all objects are flying through space at hundreds of thousands of miles per hour. B simply cannot work whatsoever. ESPECIALLY since the platform does not slow down as things move through it.

Get this anon, you use your motion relative to the portal, which ISN'T hundreds of thousands of miles per hour, crazy huh?

There is no energy being added to you so you wouldn't go shooting out. There is no transference.

Okay. But if the portal is attached to a plunger going at high speed towards a stationary object will the object remain stationary ot will the object be forced to match the speed of the plunger?

No, it's pretty much correct. The body would tug up too though. Maybe not fully through the portal but maybe enough to make it only a partial decapitation.

1 bar

people have been killed by less

Portals can change the kinetic energy of passing objects when using the frame of reference where the portals are moving.

GUYS I SOLVED THE QUESTION
BFAGS PLEASE ADVISE

Why is there an ocean in hl2 of the combine drained the oceans.

this is true because I made a gif showing it where the box has an invisible rocket propelling it

what if *shit anyone can do at home*

really?

so how does chel fall through a portal and not get ripped apart?

Today i will ruin a thread.

Grab a shovel. Dig some dirt. Does the dirt fucking explode into the shovel?

What about the moon portal?

It's literally showing you the same thing three times, the first of which shows portals behaving as agreed even by afags.

Wouldn't it just go back through the blue portal if the truck was moving?

That isn't how portals work even in game. No object dropped into a portal retains that much energy at those angles and that energy is from gravity. The A or B question implies the energy from the platform that isn't slowed down by anything going through it somehow adds MORE energy than what it had.
To get B to happen, something would have to take the energy from the platform and add it to the objects going through it. Without the secondary platform to stop the portal, what do you think happens? Again, nothing because nothing is slowing it down or taking energy away.

Yes, it shows the box having force applied to it and that force being conserved.

The earth's moving, do you except the cube to go back through the portal because of that?

Conserved

It's gaining force in that gif, retard.

You have a portal gun at home?

box

It's a round wheel.

Nope. It needed force to become “stationary” on a moving object.

That isn't how portals work even in game.

A cube exiting a portal in at the same speed but in the opposite direction is LITERALLY how it works in the games. Your problem is you haven't grasped the implications of what that means when looking at different reference frames and what that means regarding the topic of moving portals.

Fuck you vivec

B fags literally cannot comprehend potential energy.

A

jump through the hula hoop

appear jumping on the other end

throw the hula hoop

nothing happens because it's a hole

B

jump through the hula hoop

appear jumping on the other end

throw the hula hoop

reality itself is pulled in through the hula hoop and launched at whatever forced the hula hoop was moving at.

weird bunch

No, you.

You're confusing force with momentum. And even then that isn't correct.

By the cube changing direction of travel the momentum is literally not conserved. And the nature of reference frames means that even the speed and kinetic energy isn't conserved when looking at other reference frames. As shown in the webm.

portals magically update forces based on the portal's own movement

they also sometimes relocate things

Why aren't you using hoops to create free infinite energy? You know, because you seem to comprehend potential energy.

No, you. The box was in motion with the truck. Force needed to be applied to it for it to no longer be in motion.

As shown in the webm.

Minor correction, it's a gif.

If you place two portals on the ground in Portal, and drop a cube from a height, the cube bounces to the same height between portals. The ground is accelerating upwards, so for the cube to always have the same distance from the ground, it must be imparting energy every time.

When you pause/play a youtube video you aren't somehow freezing and unthawing a simulation of reality. every movement of the video has a velocity that is unchanged regardless of if you pause it or not.

Yes, this is the case when strictly only looking at the earth's reference frame (the final shot). Problem is Afags will just insist that's not how it works unless they're shown its identical to something that I do agree to (even then they'll be too stubborn to grasp it).

No. Chell will, but the boxes will eventually equalize. Something else they needed to hard code for portal 2, as flinging boxes wasn’t possible/consistent in portal

Again, in the OP, no force is acting on the box. Thus it is a. So a Bfag changed the situation for , to force acting on the box.

You seem to be a bit confused by what a video is.

Haha meant original scenario, forgot this thread started with a dunk on bfaggotry

Same thing in terms of physics.

There is no box in the OP anon...

There being a force or not is irrelevant, portals are never shown to behave based on what changes of motion happened to an object moments before they pass through. All that matters is the object's relative state of motion at the exact point it passes through the portal.

Again you seem to be confusing momentum with force. There literally is no force acting on the cube as it passes through the portal in that gif, the force that acted on the cube happened moments prior and you could edit the gif without the guy throwing it, have it already moving towards the portal and the point of the gif would remain the same.

According to B logic, this bullet would plop on the ground as the explosion itself fires out of the gun, leaving the bullet unaffected, but pushing the person back hundreds of miles per hour.

No it’s wind resistance that causes the equalization. In a vacuum the objects would always rise for as long as they fell

Are you also confused by relativity or something?

There being a force or not is irrelevant

Yes it is. bfags always absolutely need to ignore a variable to validate their stance, like you’re doing now.

Furthermore, it doesn’t matter if the object is a box magically flying through the air or a rolling cylinder, it needs force applied to it for it to stop being in motion with the truck. Thus the situation is altered, thus the results change.

The box in that animation has no force acting on it. An object moving or not moving at a constant velocity doesn't need to force to keep moving or not moving. Also, you could use the typical explanation for A to explain how the train works too without having to worry about force. Not just doing that makes me question if you actually understand what is happening in A.

The shooter also gets affected dumbass, it's called recoil.

The difference between the bullet and and the shooter is mass.
Because the bullet is much lighter than the shooter, it gains much more speed.

If the object has no force acting on it, then it just continues along with the truck.

Where is a force coming from and why wouldn't it change the velocity of the cube?

That's correct. This property of reality doesn't exist in B scenario.
In B's scenario it's some kind of decoupled phenomenon that is tacked on at a later point in time.

Doesn’t matter where it came from, to stop an object in motion requires force.

Yes it is.

No it isn't.

Furthermore, it doesn’t matter if the object is a box magically flying through the air or a rolling cylinder, it needs force applied to it for it to stop being in motion with the truck.

No it doesn't. Not if it was already not in motion with the truck when I began the scenario.

If you argue a force absolutely is needed to be included to explain the object's current state of motion then that is true for the cube in the original problem as well. As a force was needed to bring the cube to a stop on the platform it was on to begin with.

The ending of portal 2 is a fake moon in an underground vacuum chamber.
The distance the shot travels makes this fact irrefutable.

The object is already stopped. It doesn't need force acting on it to keep it stopped.

Okay so the box magically appears on the truck now.

More bfag dishonesty

Oh i see so you don't understand B so your argument against it is "Bfags think KUHRAYZEE happens"

Everyone understands that bfaggotry is insisting that definitions of physical phenomenon that rely upon unchangeable reference frames is not affected by a device that can alter reference frames. That portals don’t contradict anything about current physical models. That portals aren’t portals.

B's scenario is arguing that work does not exist. That everything is the result of relativity. The box has done fuck-all, but because the portal is doing "something", that therefore, the box will do something. The portal is magically bestowing work onto the cube somehow. It's not a hula hoop, it's a transparent solid disc that reallocates work onto whatever comes into contact with it.

Okay so the box magically appears on the platform now

You had no problem with this in the original problem, so why now?

Many single player video games with a 3d environment handle movement by locking 0,0 coordinate at your character and moving the world. You have never been able to tell the difference which games did that and which ones moved the character.

Every object has the same speed as the earth's rotation though. Unless its being forced to move faster.

don't waste your time, they do this every day to troll new fags. not even a condensed matter physicist can make them go away

This is the moon scenario.

You clearly don't understand what reference frames are.
There are no "unchangeable reference frames", portals don't "alter reference frames", reference frames are just a tool used to calculate things. And you can calculate anything from different reference frames, which might make the calculations harder but will give the same results.

This is correct.

Question for A fags

If you had a portal in freefall from a very tall height, and the other portal stationary on the ground, would the stationary portal produce wind?
If not, what happens to the air going through the moving portal?

The real answer is that modern physics is wrong and portals based off modern physics will never be real.

If I am being dishonest, you should be able to say what the force acting on the cube is. You made the claim, and I am just giving you a chance to make that claim even stronger be explaining more clearly.

b just isekai's you into POV world where how things look is exactly how things work. portal B is just a magic man that runs at people, but stops before hitting them, and this somehow pulls people with equivalent force because in pov world, the magic man was staying perfectly still and we were being pulled the entire time.

So hang on. Does he simply let go of the box and the orange portal hits it while its suspended in midair?

Ok, so you, an Afag, agree that when going through a portal to the moon, the object maintains its speed relative to the portal.

Now explain why, in the classic portal piston dilemma, the object maintains the speed it had relative to the environment instead of relative to the portal.

And every object on a train has the same speed as a train. You throw an object through a portal when on earth, you don't expect it to suddenly go back through the portal because the earth is moving. Same logic applies to throwing an object through a portal on a train.

yes it would produce wind because one portal is moving relative to the atmosphere. as for the moon, if it had an atmosphere, the portal is not moving within it. therefore, although the earth and moon are moving at different velocities, what matters is the portals relevant to their respective velocities, which is 0. have a nice day

He doesn't throw the box. He lets go of it.

What happens during the split second you are halfway through

all of you is still moving at earth speed, the border of the portal crashes into you at moon speed

half of you is moving at earth speed, half of you is moving at moon speed.

You're cut in half either way

unironic brainlet moment

Havent read through the thread at all, but i notice there always comes a point where Afags have to run circles around themselves to explain how the cube is changing position over time but is not, in fact, moving
Quite funny

not even a condensed matter physicist can make them go away

Because physicists actually understand it's B

The avg iq of a Anon Babble user must be 80
not shocking this site's filled with jeets

No he's throwing it. If he let go it wouldn't have moved away from him.

Why would this be proof of anything when b-tards dismiss the same scenario playing out in favor of A when it was recreated IN portal 2?

Its not proof when talking about real-world physics - it's just funny

durr gravity doesn't work through portals but the vacuum of space does

nope it's because the moon is moving through space at a different speed than earth

half of you is moving at earth speed, half of you is moving at moon speed.

You don't get cut in half from parts of your body moving at different speeds. You get cut in half from parts of your body moving away from eachother. But that wouldn't happen because the portals are keeping the two halves close to eachother.

No. It passes through it like normal because it's a hula hoop.

The Irony of B fags is that they're scientific argument debunks the moon landing.

muh hula hoop

you do fucking realize that it works with b you mongoloid

I don't mind explaining things to Afags even under the assumption that many are trolling, but i draw the line at hula-hooptards

It passes through it like normal because it's a hula hoop.

Which, if a hula hoop were moving extremely fast, then air would be moving extremely fast through the hula hoop, yeah?

They're

ESL or retarded? Just kidding - clearly it's both

Yes, but because of pressure build up at the stationary portal. This pressure would also slow the entrance of air into the portal and create a force resisting the portal's descent.

There is a way to prove is B but it requires to much work from my side to make a gif.

pressure build up

How is that happening when the portal is just outside

Someone has already made whatever you're thinking of

which original problem?

Force needed to be applied to it for it to no longer be in motion.

Ok, but what does that matter for? The box is stationary by the time it enters the portal, regardless of what happened before. Just like the problem. In the problem, the box probably moved at some point before being put on the platform, and a force was applied to put it to rest on it.

The momentum of the box is conserved relative to the respective portal entrance and exit. It's not conserved relative to anything else.

No, what I am thinking of no

You seriously can't be asking this

It's only a local pressure right at the surface, caused by air *plop*ing out of it. It's constantly diffusing away, but also constantly being regenerated. Assuming the portal falls at a constant speed and doesn't care about the resistance to falling this would cause, this results in a constant inflow of air onto the portal surface, while the dissipation is a function of pressure difference with the surroundings. At some non-zero pressure difference it reaches equilibrium inflow vs outflow.

Sure. As soon as the Afags admit they're wrong.

So air is in fact moving through the portal? At the rate that it enters through the moving one?

en.wikipedia.org/wiki/Frame_of_reference

In physics and astronomy, a frame of reference (or reference frame) is an abstract coordinate system, whose origin, orientation, and scale have been specified in physical space. It is based on a set of reference points, defined as geometric points whose position is identified both mathematically (with numerical coordinate values) and physically

distance

an extent of area or an advance along a route measured in a straight line

so portals can change the distance between two "fixed" points without directly interacting with them. This means, by currently defined models, firing two portals anywhere annihilates the universe. as [everything] has "moved" [literally any distance] over a time of zero. so now since distances between [literally everything] have changed instantly, everything now has infinite inertia, and must continue moving along said vectors.

or

its a

No, it *plop*s out. It is the pressure differential that exists after that fact which pushes it further, but by this point its already through.

Sure. As soon as the Btards admit they're wrong.

I legitimately couldn't tell if you were talking about that or .

not sure why you think establishing a situation that needs no further explanation is "magically appearing." in , the box could've been sitting there a million years or a second, it doesn't change anything about the situation. in , in order for the box to be moving relative to the two retards, it would need to have just appeared inside the truck

But in the games it's neither
Also are people who claim it's b trolling? I feel like there's something I'm missing here

See Changing position over time is movement

this thread again

Good evening Anon Babble, I made the mistake of getting a bachelor's in physics years ago even though I never worked with it and I'm here to explain to YOU! how portals work in the game.

When an object is entering a portal, the only information that is taken into account is the momentum of the object relative to the entrance portal alone. That's it, it doesn't matter where this portal and the object are located, if it's on a moving train, bus, planet or galaxy. What matters is the vector of the object's momentum as it enters the portal.

Because there is no absolute inertial frame of reference, you have to choose a frame of reference to know how "speedy" an object is when it enters the portal. The way the game does this, is by taking the momentum of the object relative to the entrance portal as it enters it, changing the sign of one component of the vector (it was pointing "into" the portal, it now points "out", but right/left is conserved for gameplay intuitiveness), teleporting the object to the exit portal, and applying this negative momentum vector to it RELATIVE TO THE EXIT PORTAL.

We know this because if momentum was conserved relative to any other frame of reference except the portal entrances and exits themselves, when Chell exited the portal on the moon she'd have been flung away as her huge momentum relative to the Earth was applied to her on the moon. Instead, it's discarded completely, because her momentum relative to the entrance portal when she enters it on Earth is small, and it's the same small momentum she has on the moon, but now relative to the exit portal.

And because there is no absolute frame of reference, the momentum of an object moving towards a stationary portal, is the same if it's a stationary object and a moving portal. Since moving portals are allowed, since Earth itself is moving, the answer is B.

doesn't this massively violate conservation of momentum and can cause infinite energy paradoxes

Correct.

Which, if a hula hoop were moving extremely fast, then air would be moving extremely fast through the hula hoop, yeah?

No. it's a giant hole with a plastic ring that's moving. The air is staying the same because there's nothing obstructing airflow to introduce resistance aside from the bit of plastic on the edge.
B fags literally do not go outside, this is hilarious.

Did you ever come up with an argument for why you think it would be A? I have a good counter argument to what you are posting here, but I'm obligated to still wait for you to actually try to explain why you think A would work first.

The distance between the very surface of portal 1 and that of portal 2 is zero.

It is the pressure differential that exists after that fact which pushes it further

You will like this video youtube.com/watch?v=K_6vsE372mg

Pressure is not real.

Pressure is an abstraction of collisions.

Every single point of observation is stationary.

its A because portals conserve the momentum of an object. the object has no momentum, so zero momentum is conserved.

ya know, what the one developer said.

That is not contrary to what I said at all.

Literally never been countered, ultimate a-tard destruction lmao.

conserve the momentum of an object

Behold the question that ends A.
Momentum relative to what?

Be Afag

Weak, pathetic, cant do anything, his limp portals cant either

Be BGOD

Move portals everyday to launch bvlls directly into your wife's lips at high

YUP, BSCHOLARS KEEP WINNING, YUP

But the Earth in Portal doesn't move at all.

Then you are in agreement that the air molecules have been given motion.

itself. the platform its resting on.

If that's all it is, then how could it be A? conserving momentum would mean that it wouldn't move. If it doesn't move, it wouldn't be able to come out of the portal without something else happen where that something else would end up being a different answer from A or B.

jump in portal at 100 m/s

fly out other portal at 100 m/s

all is good

portal comes at you at 100 m/s

logically, you should exit the other portal at 100 m/s

this causes pants shitting confusion

the box could've been sitting there a million years or a second

So what's the length of time upon which a force happening to the cube prior doesn't matter?

Actually a better question. Why aren't you counting the force that's being applied to the cube as it's resting on that platform? The platform is actively exerting a force on the cube that's changing it's state of motion to counter gravity you know.

There's no confusion; you're just retarded.

Wrong because momentum is a vector quantity, doing a portal fling changes your momentum by changing your direction even if your SPEED is conserved.

the portal is an object, not an entire universe being thrown at you

How does Half-Life have a day and night progression if the Earth isn't spinning and moving around the sun?
There's no such thing as an absolute stationary object in the universe because there is no absolute inertial frame of reference. If I start walking, I am literally (factually) moving the Earth.

haha i was about to accuse you of skipping the second part of newton's first law of motion, but holy shit you haven't even read it

Newton's First Law of Motion states that a body at rest will remain at rest unless an outside force acts on it

the object is at rest. it remains at rest. dropping a portal on it doesn't change this.

There are arguments that can make both A and B look stupid. A doesn't make sense because with A logic, the cube wouldn't be able to pass through the portal. It would get flattened or stop the portal completely. B doesn't make sense either. B logic says the cube is both stationary and moving in the same reference frame.
That said, B makes more sense. Afags are retarded

the object is at rest. it remains at rest.

IF A PORTAL IS MOVING TOWARDS IT, IT IS NOT AT REST RELATIVE TO THE PORTAL, WHICH IS THE INERTIAL FRAME OF REFERENCE

An object that can displace anything passing through it, and where one end can move while the other doesnt

in , no force is acting on the box. in either it needs to just magically appear inside the truck near two retards or top tard has to push it.

How does Half-Life have a day and night progression if the Earth isn't spinning and moving around the sun?

Because the level artists changed the skybox and baked lighting.

HULA
O
O
P

Not at all. More molecules simply exist in the same space now. If you had an upside-down basket falling, pressure would build inside of it. This is a similar situation, as the limited diffusion speed acts as somewhat of a barrier.

so you're ascribing magical properties to a specific frame of reference that isn't fixed, and ignoring all others.

Correct, it's only a lack of knowledge of middle school physics that could make anyone disagree.

in , no force is acting on the box

Yes. There. Is.

The platform is actively exerting a force on the cube that's changing it's state of motion to counter gravity you know.

Don't mind me fellow B friends, just using my sail-less sailboat to traverse these waters. sure is windy today. I will move at twice the equal speed in the opposite direction of the wind.

Yea, that's what I'm saying. The cube would remain at rest, which gives a different outcome. If you want A, how do you make the cube come out of the portal rather than staying at rest at the portal.

I put my erect penis through a portal
Your mother is on the other side, bent over
The portal moves back and forth so that my penis is entering her, despite neither of us moving our hips
Am I having sex woth her?

gravity isn't a force, we just tell inner city kids that so they can pass standardized tests.

how does it exit the portal if its at rest?

and ignoring all others

All others are ignored, yes.
What is the frame of reference taken to calculate Chell's momentum when she enters a portal on the ground at Earth and comes outside on the Moon?

gravity on the other side of the portal? what the fuck

I literally didn't say gravity was the force there. I said that the platform pushing against the cube to counter gravity was. This is basic physics.

you're just spewing gibberish now, which is what bfaggotry always ends up at.

portals, by default, change distances between points, whether the portals are moving or not. changing the distance between two points is consistent with how we define motion. but that means just shooting a portal anywhere should grant everything infinite inertia and annihilate everything.

or its a

Could you hang half upside-down like this?

What if the exit portal is vertical to the exit and not horizontal? How does "gravity" push it out then?

What would happen if the moon portal was just left open indefinitely

No, i mean as it is going through the portal.
It's not a binary "it's in or it's not" - there's a period where the cube is partway through the portal, moving from one to the other
Which is called movement

Sure!
Both sides of the hoop are traveling with the sam velocity, ergo the net velocity change is 0.

This problem got me thinking, what if you visualized it with a change in gravity center instead of portals?
Imagine the cube is attached to a moving wall, then once the wall is about to stop moving (but is still in motion), the gravity returns normal. Wouldn't that result in B?

schizo atard moment

lol?

kindasorta. literally any shift in weight would cause you to fall one way or the other.

You'd probably be in a weird limbo of bouncing up and down a little until you get out of balance and fall
But theoretically yeah

I guess so if you were perfectly in between, but even a teeny tiny imbalance in mass either side would add up over time.

No, see, from the wind's perspective my boat is going equally as fast. we'll get there in no time. Don't you understand relativity?

The only thing I can conclude from this whole meme is that velocity is fake and gay and is all relative.

Unstable equilibrium, the tiniest of forces would make you fall

meds

Earths's atmosphere slowly gets vented into the near-moon vacuum, but also slowly gets pulled back into Earth's gravity.

These and the train gif are all you need.
I am really considering recording some video with graphics explaining at length how it works.

B faggotry does sound a little schizo doesn't it.

It isn't gibberish or hard to understand. Speed in would be equal to speed out, so zero velocity in and zero velocity out. However, since it has zero velocity, it wouldn't start moving away from the portal without a force, so it is answer C. Would shooting a portal also destroy the universe in answer C where momentum is preserved and the cube has zero velocity when it is at the portal? If so, why wouldn't it destroy the universe in A as well? If not, why are you choosing A over C.

a fag off her meds

I like how much time we've devoted to debating something impossible again.

The loss of air would be inconsequential relative to what we already lose to solar wind and what we gain from outgassing. If you were REALLY paranoid you could just seal it in concrete and reduce the loss to a tiny trickle.

The portal only *appears* to be moving, really it is *me* who is moving.

WE ALL A'D HER
BUT HE B'D HER
I GUESS THAT MAKES HIM A PORTAL MAN

We're merely earning our degrees in theoretical physics.

Aperture Science is the kind of place to have internal airlocks. The leak really wouldn't be a big deal compared to all the other shit on site.

Much better than twitter screencap threads

Right but one of the two impossible things is somewhat coherent and I will shame anyone who argues for the other.

They teach inertial physics in elementary school, man

do forces travel through portals? ie are you affected by gravity on the other side of the portal just by standing near it? or will you only feel the gravity on the other side after passing through the "barrier"

golden mean faggot thinks he's superior when really he's demonstrated that he doesn't understand that one side is just plain right

or will you only feel the gravity on the other side after passing through the "barrier"

It's a problem because the portal itself being infinitely thin would cause paradoxical problems like infinite shear forces.
Aside from the reality breaking membrane itself, everything else works as expected ie. your hand should feel gravity in a different direction if you partially put it through.

movement can be "defined" by at least three different reference frames in . The rate entering the orange portal, the rate exiting the blue portal, and the change in position from platform to exit portal. that third one contradicts the other two, as the part of the cube emerging from the exit portal has instantly moved to the right [whatever] distance. thus now it should have infinite velocity, thus infinite inertia.

or the cube hasn't moved. and its a, and our current definitions of movement don't apply to the ability to instantly rearrange reality at a whim.

Find yourself a portal IRL and prove it.

ran away and shit himself when pressed further

As is the case of all Afags. Now kneel

you're just spewing gibberish now

[proceeds to spout gibberish]

Don't need to, we're discussing portal canon and B already happened in portal canon.

and now we're back to , the final bastion of bfaggotry.

Why would it rip his skin before pulling him theough the portal? You niggers are so facetious

But it didn't.

Doesn't that mean everything crossing a portal would just be compressed with infinite force? Which is say everything is destroyed or killed instantly.

bfags think reverse centripetal force is what sucks everything out into the moon. ignoring that it would be the reverse.

Everyone understands that

[Something that no one but that anon has ever said]

i hope redhead gadget is a powerful vacuum for human cum

See Nigger how many times does it need to be said that no one is arguing that the Chell was being pulled in by B? We know that's air pressure you retard.

Sure, but the cube also doesn't move in C so there is no need to worry about all that stuff about velocity measurements. Why pick A over C?

What is sucking Chell into the portal when she's on Earth, is indeed the pressure difference. What matters is what happens when she enters the portal.
Why is she only leaving it with a modest velocity relative to the exit portal? The same that she had relative to the entrance portal when she entered, but now applied in reverse to the exit portal? Because the only thing the game cares for is RELATIVE VELOCITY, the velocity relative to the ENTRANCE PORTAL, nothing else. If it were taking the velocity relative to the Earth, Chell would have been flung out at the velocity the Moon has relative to the earth, which is approximately a fuckton

isnt this kind of question why glados does experiments? its not my job to know.

reee stop thinking

it hurts less the more you do it.

This isn't the type of comment you should make when ignoring a question you don't want to answer for some reason.

a portal is connecting two spots with zero distance between them

the cube is not moving as it exits the other portal

these are conflicting statements

it was funny when a bfag accidentally saved the version with the second box flying off without touching the portal

it crashes the game!

is

stop thinking about it

I dunno how people are so bad at seeing that even without needing to change the orientation of the blue portal that gravity is still sending the cube back into the portal and can't be the reason it leaves it.

If you can spend this much time in these thread and can't even tell me why you think the answer is A instead of why you don't think the answer is B, then yes I don't think you have thought about it. Since you still seem intent on not giving an answer I think you are just deflecting so you can continue to avoid having to think about it.

As an enlightened centrist, I know the answer is simply that portals aren't real.

"velocity relative to what?" is the "per capita" for A-nigs

B logic says the cube is both stationary and moving in the same reference frame.

No it doesn't.

Afags are already btfo by this, yet they still keep arguing. There are also the especially retarded Afags who think the letters are switched. I don't know how anyone takes them seriously.

Teleportation is real. Lol hardware doesn’t evolve obviously. “What if we made version 7.3b 5% faster than version 7.3a, they’ll surely believe it”. Think about it, they’re intentionally releasing slow updates just for something to do. Science doesn’t work that way, they already have the fastest GPUs possible because this reality isnt nearly that hard to figure out. I could probably make my own, the logical conclusion is that nobody has ever even tried to make their own hardware and just trust the article that says “scientists are working hard and have released a 5% upgrade consistently every time”. Lol youre pea brained. My brain is the smartest because I have the most human evolution possible.

and can cause infinite energy paradoxes

Sure but anyone with half a working brain already knew portals could create infinite energy using ye olde water wheel and infinite fall

Because it switches a and b logic, bro.

The object isn’t moving according to literally all but two reference frames, and it’s moving in contradictory rates in those reference frames. Thus, it’s a.

Nah. You know damn well B is the one where the speed of the dude changed, just like in the original problem. You're not retarded, right?

How does that make it A? What am I supposed to do with the velocities in those reference frames to make A happen?