Portal logic problem

[Tharwen]

I have another question! What would happen if, after welding the rod, you rotate it by a few degrees without moving it out of the portals?

Also, since the only thing established as necessary for a portal is a flat surface, could one be opened on, say, a piece of plywood? Then what happens if the portals touch?

If you move the surface that you put the portal on the portal disappears.

Quoted to grab your attention.

http://img194.imageshack.us/img194/9339/lolportal2.png

Generally not trying to be a dick, that's how I see it.
Explain to me how it would fall?

I appear to be missing something.

Your idea assumes that the top of the rod supports the bottom of the rod through the Portal.

That would imply that the bottom of the rod is trying to fall but the top is getting in the way. What would happen is that the bottom of the rod would try to fall, and the top would follow it since they are attached.

 

[HK_01]

You know the real logic problem? Why does Glados spawn a rocket turret that allows you to kill her when she could just wait for the gas to do its work?

 

[BlindMessiah94]

You know the real logic problem? Why does Glados spawn a rocket turret that allows you to kill her when she could just wait for the gas to do its work?

This guy is onto something.

OT: Welding the poles together will give you Poleo.
Rimshot please

 

[maddawg IAJI]

I would imagine it would just be stuck in the wall, but we wouldn't truly know until someone invents a Portal Gun now will we?

 

[Zaik]

Yeah well i have a question that i'm sure has been asked a million times too.

what in the crap is the scientific value of a gun that can make portals only on surfaces specifically designed to have portals made on them?

 

[nick n stuff]

wouldn't it just stop falling.

 

[Chicaine]

In soviet russia, pole becomes you
OT:Not a clue, i've never thought beyond "grr how the **** do i get past this ****'ing ****" when it comes to playing, and when im in a philosophical/pondering mood i tend to think more about pokemon

 

[Jonluw]

I would think you would just end up with a pillar going from floor to ceiling, with a welding seam somewhere on it.

 

[Coldie]

0. Set up: portal in the floor, portal in the ceiling, a metal rod of the exact length to fit between them. Work the rod into the portal loop and weld one end of it to another.

1. Once you weld the pole to itself and release the hold on it, it will fall. For the purposes of this experiment, we will assume that the usual free fall acceleration will apply throughout the fall. If the portals are not perfectly aligned, it will also a) rotate; b) flail about dangerously; c) quickly end up exploding into bits and pieces due to high stress.

2. Assuming that the portals are aligned perfectly and the "infinite" rod is in freefall, we shift one of the portals. It is not relevant which of the two portals is shifted, as the outcome will be the same. As the portal is collapsing, the rod will be forcibly shunted out of the portal. If the structural integrity of the rod survives the nudge against itself, the portal will collapse and sever the rod. The shape of the cut-off is up to speculation, but deformation is possible, due to the forces involved in the collapse.

3. As it is known, the portal does not have any effect on a moving object's momentum. The air friction can be assumed to be minimal, so the free-fall acceleration has a potential to eventually increase the speed to ludicrous or possibly even relativistic, if the experiment is prepared with due diligence.

4. As it is known, the floor does have an effect on a moving object's momentum. Once one of the portals is moved, the rod will either encounter the floor where the portal was, or will exit the shifted portal and encounter a non-moving object there. Once the rod encounters a non-moving floor or object, it will stop and impart its momentum and the corresponding kinetic energy (which is directly proportional to the rod's mass and the square of rod's speed) to the object, effectively resulting in the destruction of the rod, the object, and, possibly, the surrounding countryside and/or planet.

In conclusion, if you want to try this experiment For Science, wear goggles and point the portal gun away from yourself and your loved ones.

 

[Womplord]

You would just need to 'push' the portal hard enough to bend or break the bar. Or the bar would just hit the side of the portal and be dragged. I've never played the game though so I'm not sure how portals are moved.

Edit: Imagine the portals were in a vacuum. The iron rod would speed up infinitely.

 

[SnowdensOfYesteryear]

You would just need to 'push' the portal hard enough to bend or break the bar. Or the bar would just hit the side of the portal and be dragged. I've never played the game though so I'm not sure how portals are moved.

With a device, not physical movement... you shoot at something, which moves a portal there, basically.

 

[SilverUchiha]

Moving one portal, would likely result in having the pole go out one of the portals. If you closed both, it'd be kinda cool cuz it would just stick in place.

What do you mean there isn't any space in between? That wouldn't matter, an object sitting on a table exerts pressure on the table which can be measured. Gravity generates pressure, so what happens to the pressure that gravity generates in the metal pole?


So you could stand on your own head and not fall? That doesn't make any sense.

Because of how the portals work.

The new ceiling and floor surfaces would become the pole, once the portals are there.

Once one of the portals is moved, yes it would drop.

This. From my understanding, this is how the Portals in Portal works.

 

[Willwillwritehiswill]

Edit: wait, no, okay. lack of sleep. disregard this.

 

[Snarky Username]

I'm assuming it would become part of the wall. Either that or the universe explodes. But probably the first one.

 

[grimsprice]

Quoted to grab your attention.

http://img194.imageshack.us/img194/9339/lolportal2.png

Generally not trying to be a dick, that's how I see it.
Explain to me how it would fall?

I appear to be missing something.

It's a conflict in how the two of you conceive of portals. You seem to visualise the bar problem as stacking the universe upon itself, whereas he presumably imagines each portal feeding into the other. The former suggests that the bar could be set to support its own weight, as a single length of iron standing upon itself all the way down, whereas the latter suggests that the bar would act as a waterwheel, wherein the water is gravity, and the wheel is a straight line. Both achieve basically the same effect, but lead to different intuitive solutions when asking these kinds of questions.

I'm guessing, anyway.

Yes. Exactly.

 

[Serenegoose]

This is a way better problem - what happens if you have a crate. open a blue portal on the floor - now open an orange portal -on the crate- now it's trying to fall through the floor and out of ITSELF.