An atheist

[JohnD]

Yes, Gravity is only something that exists if you live on eath or some planet other than earh.

Or somewhere that is not a planet.

 

[jacko555]

Yes, Gravity is only something that exists if you live on eath or some planet other than earh.

Sorry I feel bad. I shouldn't be splitting hairs, especially as the thread was an athiest pun.

But, I'll bite:

Gravity exists everywhere, regardless of planets, or, people to experience it.
Energy/mass bend space, this causes gravity.
The black hole at the center of our galaxy causes the spiral arms (and our sun) to rotate around it, due to gravity.
The gravity of the sun causes the earth to orbit it.
The gravity of the moon causes the tides.
Its everywhere.

And it's something.

Nothing, as a concept, is very important. I think the Hindi maths introduced the concept to us. The concept of zero, or, nothing.

Without it, complex maths doesn't work and our general understanding of advanced anything.

 

[Vinty]

And just to confuse Vinty more, energy (like light) also generates gravity. Despite it having no mass, if has energy-mass which is what generates gravity.

If you fire enough light into a single spot at the right time you can form a Kugelblitz and make a black hole from light.

So light generates energy/mass which creates gravity.
So therefor it is the energy /mass which creates gravity and not light.
No energy/mass means no gravity, as gravity can extend over vast distances, i suppose on balance you could argue that it is exists all across the universe.

 

[jacko555]

as gravity can extend over vast distances, i suppose on balance you could argue that it is exists all across the universe

Exactly what we are saying

 

[Vinty]

Or somewhere that is not a planet.

A black hole isn't a planet but it still has mass which creates gravity.
That was the point i was making.

 

[JohnD]

A black hole isn't a planet but it still has mass which creates gravity.
That was the point i was making.

unconvincing

Do you still maintain there is no gravity in the gaps between planets?

 

[Trazor]

A black hole isn't a planet.

Correct, to be a planet it has to meet certain criteria.

But it still has mass which creates gravity.

Yes they produce massive gravitational effects by bending space time.

unconvincing

He is correct.

Do you still maintain there is no gravity in the gaps between planets?

There are gravitational effects produced by bending space time.

 

[IT Minion]

So light generates energy/mass which creates gravity.
So therefor it is the energy /mass which creates gravity and not light.
No energy/mass means no gravity, as gravity can extend over vast distances, i suppose on balance you could argue that it is exists all across the universe.

It does exist everywhere. If you pick any place in the universe there will be some gravity there. It might be very weak but it's there.

Let's pretend you were in space next to the ISS. There is almost a full G of gravity pulling you down towards the earth. If you weren't traveling at 17,000 mph (like the ISS) then you'd fall to earth in around 5 minutes or so, give or take. Well, you wouldn't hit the floor as you'd burn up as you hit atmosphere at somewhere like 5-6000mph.

edit: I knew I should have checked what-if.

https://what-if.xkcd.com/58/

 

[transam]

I have always wondered where the dark go's when u turn the. Light on

 

[IT Minion]

I have always wondered where the dark go's when u turn the. Light on

https://wtamu.edu/~cbaird/sq/mobile/2013/06/20/what-is-the-speed-of-dark/

 

[JohnD]

He is correct.

but his attempts to wriggle away from his original assertions are unconvincing.

gravity only exists on earth and other bits of stuff floating around in the universe.

Gravity is reality on earth, once you leave earth it does not exist.

Yes, Gravity is only something that exists if you live on eath or some planet other than earh.

 

[Ihavenojob]

I have always wondered where the dark go's when u turn the. Light on

Ask noseall, he's an authority on darkies.

 

[noseall]

Ask noseall, he's an authority on darkies.

Thanks. But I think transam was referring to light.

I will continue to educate you lot however.

 

[Vinty]

unconvincing

Do you still maintain there is no gravity in the gaps between planets?

Mass creates gravity that was the point I was making.
There could be lots of places in space which are gravity free.

Graphical depiction of the string theory “Landscape” by University of Cambridge

We imagine our universe to be unique, but it is one of an immense number—perhaps an infinite number—of equally valid, equally independent, equally isolated universes. There will be life in some, and not in others. In this view the observable Universe is just a newly formed backwater of a much vaster, infinitely old, and wholly unobservable Cosmos. If something like this is right, even our residual pride, pallid as it must be, of living in the only universe is denied to us.

Carl Sagan

 

[IT Minion]

Mass creates gravity that was the point I was making.
There could be lots of places in space which are gravity free.

Which means you are indeed wrong. Gravity doesn't just stop, it gets weaker the further you are from any source. So If you pick any spot in the universe then it'll have some gravity there.

You might be able to argue the toss if you drag some of the more advanced theories of the universe into it but String theory etc. are beyond this thread and my knowledge of physics.

Could you have a spot in the universe that has exactly balanced gravity? Perhaps, but it'd be only true for an instant and I don't think you'd ever be able to detect it or prove it and it starts to rub up against the confusing bits of relativity.