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/sci/ - Science & Math

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8280119 No.8280119 [Reply] [Original]

Can /sci/ explain why gravity isn't affected by gravity?

>> No.8280123

Well you see, gravity works outside time

That's why light cannot escape a black hole, but its gravity can

>> No.8280126

>>8280119
Because gravitational fields don't couple to themselves.....maybe.

>> No.8280131

>>8280123
d'accord

can one say gravity is instantaneous since it's not bound to a single moment in time but all of them at once?

>> No.8280134
File: 88 KB, 898x362, Screen Shot 2016-08-18 at 19.24.56.png [View same] [iqdb] [saucenao] [google]
8280134

What do you mean by "affect"?
It affect itself in the sense that the equations are non-linear.

Pic related is from
https://en.wikipedia.org/wiki/ADM_formalism

>>8280126
It does.

A linearized gravity, where stuff looks like Electrodynamics (which classically is not self-interacting at all), goes by
https://en.wikipedia.org/wiki/Gravitoelectromagnetism

>> No.8280209

>>8280123
Time doesn't exist.

>> No.8280215

>>8280209
You don't exist.

>> No.8280249

>>8280119
It is.

>> No.8280253

>>8280131
It isnt instantaneous. If the sun completely vanished, the earth would keep orbiting it for ~8minutes

>> No.8280264

math friend here

tell me about gravitons and gravitinos

>> No.8280267

>>8280215
Triggered hard were you? lol

>> No.8280274

>>8280253
Why tho?
I think vanish is the wrong hypothetical to use. If it were to instantaneously become a black hole how long would it take for us to be drawn toward it? Is it still instantaneous or is it still 8 min

>> No.8280279

>>8280274
If this hypothetical black hole had the same mass of the sun, the orbit of earth wouldnt change at all. Any sudden change of the sun mass would effect earth at the speed of light (so after about 8min)

>> No.8280280

Science can explain everything. Just believe.

>> No.8280283

>>8280123
Gravity is a curvature in time and space.

>> No.8280392

>>8280119
>what are gravitational waves?

>> No.8280642

>>8280267
He wasn't wrong.

>> No.8280660
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8280660

>>8280253
>>8280279
>>8280253
>>8280279
>look I know the lights travel distance from the sun to earth
So proud of you anon! I'm glad you enrich us with your deep knowledge of the universe.

>> No.8280678

>>8280660
Anon asked, I answered. It is not like I randomly spouted it out. Anon didnt know about it, so I told him. You know, not every post is for (You)

>> No.8280683

>>8280678
You're right. I apologize. It's just that sometimes I find myself so full of faggotry and retardation that I can't hold it back anymore, and that's when I lash out and fag up the place.

It won't happen again, anon. I'm sorry.

>> No.8281449

>>8280274
https://en.wikipedia.org/wiki/First_observation_of_gravitational_waves

>> No.8281827

>>8280274
If the sun were a black hole we'd orbit it the same as we do now. The only difference would be for things going inside the current radius of the sun.

>> No.8281883

>>8281827
>>8280279