Gravity at the Edge of the Universe
Gravity at the Edge of the Universe
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Discussion

Ayahuasca

Original Poster:

27,560 posts

302 months

Wednesday 15th July 2009
quotequote all
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?





Stickers

1,387 posts

222 months

Wednesday 15th July 2009
quotequote all
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
Gravity is relevent, so you would be attracted to the largest mass (the planet you are standing on), irrelevent of your position in the Universe.


ETA:

Otherwise all matter in the Universe would be heading back towards the centre right now!


Edited by Stickers on Wednesday 15th July 23:53

grumbledoak

32,356 posts

256 months

Wednesday 15th July 2009
quotequote all
Absynthe?

Ayahuasca

Original Poster:

27,560 posts

302 months

Wednesday 15th July 2009
quotequote all
Stickers said:
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
Gravity is relevent, so you would be attracted to the largest mass (the planet you are standing on), irrelevent of your position in the Universe.


ETA:

Otherwise all matter in the Universe would be heading back towards the centre right now!


Edited by Stickers on Wednesday 15th July 23:53
If we are in the middle, there is an equal amount of universe around us. If we go to the Edge of the Universe then all the gravity points one way.

EDLT

15,421 posts

229 months

Wednesday 15th July 2009
quotequote all
Some science-types belive that the laws of physics are infact NOT constant throughout the universe so if you go to the edge you'd be experiencing some trippy st.

grumbledoak

32,356 posts

256 months

Thursday 16th July 2009
quotequote all
As I said. silly

RDE

5,028 posts

237 months

Thursday 16th July 2009
quotequote all
Ayahuasca said:
above
That in itself is a difficult concept when we're talking about the universe and tha'.

Maxwell Smart

13,739 posts

273 months

Thursday 16th July 2009
quotequote all
Ayahuasca said:
Stickers said:
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
Gravity is relevent, so you would be attracted to the largest mass (the planet you are standing on), irrelevent of your position in the Universe.


ETA:

Otherwise all matter in the Universe would be heading back towards the centre right now!


Edited by Stickers on Wednesday 15th July 23:53
If we are in the middle, there is an equal amount of universe around us. If we go to the Edge of the Universe then all the gravity points one way.
I assume you mean the curvature of spacetime.

deevlash

10,442 posts

260 months

Thursday 16th July 2009
quotequote all
Stickers said:
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
Gravity is relevent, so you would be attracted to the largest mass (the planet you are standing on), irrelevent of your position in the Universe.


ETA:

Otherwise all matter in the Universe would be heading back towards the centre right now!


Edited by Stickers on Wednesday 15th July 23:53
theres a train of thought that argues that that is exactly what will happen eventually.

Stickers

1,387 posts

222 months

Thursday 16th July 2009
quotequote all
deevlash said:
Stickers said:
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
Gravity is relevent, so you would be attracted to the largest mass (the planet you are standing on), irrelevent of your position in the Universe.


ETA:

Otherwise all matter in the Universe would be heading back towards the centre right now!


Edited by Stickers on Wednesday 15th July 23:53
theres a train of thought that argues that that is exactly what will happen eventually.
You mean the 'Recipricating Universe' theory?.........the Universe as we know it may not be the first of it's kind.

If the Universe is expanding from the big bang, it would be reasonable to assume that gravity would eventually play it's part in attracting everything back once more, creating another big bang - so on & so forth.

Don't get me started on singularities - gravity's effect on photons????? Stephen Hawkins is full of st!

deevlash

10,442 posts

260 months

Thursday 16th July 2009
quotequote all
Stickers said:
deevlash said:
Stickers said:
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
Gravity is relevent, so you would be attracted to the largest mass (the planet you are standing on), irrelevent of your position in the Universe.


ETA:

Otherwise all matter in the Universe would be heading back towards the centre right now!


Edited by Stickers on Wednesday 15th July 23:53
theres a train of thought that argues that that is exactly what will happen eventually.
You mean the 'Recipricating Universe' theory?.........the Universe as we know it may not be the first of it's kind.

If the Universe is expanding from the big bang, it would be reasonable to assume that gravity would eventually play it's part in attracting everything back once more, creating another big bang - so on & so forth.

Don't get me started on singularities - gravity's effect on photons????? Stephen Hawkins is full of st!
yeah, thats the one, it also kind of ties in with string theory assuming time isnt relevant and things can shift between dimensions.

I really hope string theory is proven, that would be very trippy!

Man-At-Arms

5,920 posts

202 months

Thursday 16th July 2009
quotequote all
i think someone's come back from the pub too early !

Caruso

7,505 posts

279 months

Thursday 16th July 2009
quotequote all
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
The force of gravity diminishes with distance...otherwise we would all be sucked off the Earth into the Sun.

I'm sure there are some cheap gags to be had with sucking off and being attracted to the nearest large body, but it's too late in the evening to think them up. wink

cottonfoo

6,047 posts

233 months

Thursday 16th July 2009
quotequote all
Stickers said:
You mean the 'Recipricating Universe' theory?.........the Universe as we know it may not be the first of it's kind.
Or indeed the only one.

Recent article in New Scientist speculates on "more than one type of gravity" which also attempts to explain the Pioneer anomaly.

deevlash

10,442 posts

260 months

Thursday 16th July 2009
quotequote all
BAHN-STORMA said:
deevlash said:
I really hope string theory is proven, that would be very trippy!
I watched a programme [Horizon, possibly?] a couple of years ago, which made a very good job of explaining this.

The absinthe, I may or may not have imbibed at the time, hinders my recollection - any good links to 'refresh' my memory would be appreciated!
http://www.superstringtheory.com/
http://www.superstringtheory.com/basics/index.html

That should do it for you, its got advanced stuff too if you get hooked, its quite hard to comprehend even the basics though (well it is for me anyway, fascinating all the same though)

Basically it links newtonian physics (sub lightspeed) to quantum physics (lightspeed stuff). As normally the 2 types of physics dont work together at all, or at lvast they shouldnt. But they do. Somehow. That somehow might be superstringtheory.

scorp

8,783 posts

252 months

Thursday 16th July 2009
quotequote all
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off into outer space i.e towards the centre of the universe. Wouldn't you? So how does that work?
Yeah, it would all come from one direction, but you would be very far away from most of that mass so the attractive force wouldn't be too great.

GilbertGrape

1,226 posts

213 months

Thursday 16th July 2009
quotequote all
So what exactly is beyond the edge of the universe then...


deevlash

10,442 posts

260 months

Thursday 16th July 2009
quotequote all
GilbertGrape said:
So what exactly is beyond the edge of the universe then...
vorlons, shadows and the first ones yes

scorp

8,783 posts

252 months

Thursday 16th July 2009
quotequote all
GilbertGrape said:
So what exactly is beyond the edge of the universe then...
Infinite space ?

phumy

5,812 posts

260 months

Thursday 16th July 2009
quotequote all
Ayahuasca said:
Would be a bit weird, wouldn't it?

You would be standing on your planet, at the Edge of the Universe, but because all the rest of the universe is above you, you would be sucked off, wouldn't you? So how does that work?
EFA, now this part is ok, the gravity bit is somewhat confusing.