/sci/ - Science & Math

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Anonymous Mon Sep 20 17:29:24 2010 No.1780360 [Reply] [Original]

Dear /Sci/.

If an extremely massive object was instantly introduced/removed from space, would its effects on our gravity be instant? (faster than light).

Say a star is a light year away and is destroyed instantly. Is it's gravitational effect on all objects instant, or would we on Earth only detect its effects after a year? Already talked to the physics/astronomy director and they didn't have any definitive answers.

>>	Anonymous Mon Sep 20 17:30:24 2010 No.1780363 Your astronomy/physics director's dumbfuck retarded. NOTHING TRAVELS FASTER THAN LIGHT. We'd only feel it after a year.

>>	Anonymous Mon Sep 20 17:31:24 2010 No.1780367 http://en.wikipedia.org/wiki/Speed_of_gravity

>>	Anonymous Mon Sep 20 17:31:24 2010 No.1780369 I would say, the effect would be instantly because the space is altered by gravitation. Also, no I have no real clue but it seems logical for me.

>>	Anonymous Mon Sep 20 17:32:24 2010 No.1780375 >>1780363 Mass can't travel faster than light, gravity is unrelated.

>>	Anonymous Mon Sep 20 17:33:24 2010 No.1780377 >>1780369 >I have no real clue but here's my off-the-top-of-my-head dogshit theory. Come on, we don't need that. Reference shit before posting; helps to class up the place.

>>	Anonymous Mon Sep 20 17:34:24 2010 No.1780380 Newton's Laws imply that gravitational forces are instant(faster than light).

>>	Anonymous Mon Sep 20 17:36:24 2010 No.1780388 OP here. Apparently changes in gravity are instant, faster than light speed. Physics broken?

>>	Anonymous Mon Sep 20 17:39:24 2010 No.1780398 >>1780388 Everyone in this thread is wrong. It would propagate at the speed of light. Gravitons are luxons.

Anonymous Mon Sep 20 17:40:24 2010 No.1780404

If gravity is "made of" particles that exist for such a short period of time they don't violate conservation of energy laws (current accepted theory) then it shouldn't be hard to imagine that they can travel faster than the speed of light in a vacuum. The r^2 in the denominator of Newton's equation for the force of gravity is the only limiting factor in your hypothetical situation about a faraway star.

>>	Anonymous Mon Sep 20 17:42:24 2010 No.1780409 >>1780380 Newton's laws are a little outdated.... Speed of light, OP. Experiments suggest that this is true within about a percent.

>>	Anonymous Mon Sep 20 17:43:24 2010 No.1780413 File: 15 KB, 188x229, 1282824490953.jpg [View same] [iqdb] [saucenao] [google] http://en.wikipedia.org/wiki/Graviton derp

>>	Anonymous Mon Sep 20 17:44:24 2010 No.1780414 >>1780388 >>1780360 no, you introducing a new mass violates conservation of energy.

>>	Anonymous Mon Sep 20 17:45:24 2010 No.1780416 you cant go nowhere. NOWHERE isnt a place

Anonymous Mon Sep 20 17:50:24 2010 No.1780431

Apparently the general consensus in the modern scientific community is that Newtons laws are a solid rough estimate because the gravity isn't account for velocity, which Einstein's principles do account for.

Tl:dr Gravitational affects occur at light speed. >>1780416
>>1780414
Derp; I mentioned if. It's theoretical.

>>	Anonymous Mon Sep 20 18:00:24 2010 No.1780461 File: 55 KB, 500x657, 1283106121867.jpg [View same] [iqdb] [saucenao] [google] >>1780431 derp derp all quantum physics are theorical

>>	Anonymous Mon Sep 20 18:02:24 2010 No.1780465 >>1780416 you can't not be on a boat

>>	Anonymous Mon Sep 20 18:08:24 2010 No.1780482 File: 28 KB, 450x450, 1265247116205.jpg [View same] [iqdb] [saucenao] [google] >>1780461 >mfw double slit experiment

>>	Anonymous Mon Sep 20 18:11:24 2010 No.1780489 >>1780431 Gravititational models are based closely around conservation of momentum, mass, and energy. If those assumptions weren't true than our models for gravity would not be self-consistent.

>>	Anonymous Mon Sep 20 18:11:24 2010 No.1780490 >>1780360 Well help yourself to a fuckin' science book, cause you're talking like a fuckin' retard.

>>	Anonymous Mon Sep 20 18:12:24 2010 No.1780495 File: 28 KB, 679x595, 1282823923371.jpg [View same] [iqdb] [saucenao] [google] >>1780482 >mfw the only thing it proves is that lights is a wave

>>	BRM Mon Sep 20 18:24:24 2010 No.1780524 IF?.... why formulate a theory based on something that absolutely CAN'T happen? Energy is a constant in this universe of ours.

>>	Anonymous Mon Sep 20 18:28:24 2010 No.1780537 >>1780524 are you retarded? then where comes the heat when i turn on my stove??

>>	sage BRM Mon Sep 20 18:31:24 2010 No.1780544 >>1780537 Mate, you are bloody fucking retarded, it's not even funny.

>>	Anonymous Mon Sep 20 18:35:24 2010 No.1780554 >>1780544 hurp durp you cant even back what you say

>>	Anonymous Mon Sep 20 18:37:24 2010 No.1780562 >>1780537 Trolling has a negative effect on said troll's sperm mobility.

>>	BRM Mon Sep 20 18:38:24 2010 No.1780568 >>1780554 Get up, I obviously I can, I'd just rather not react to your bait as I'm pretty sure you know just how wrong you are and why.

>>	Hadron !Hadron850E Mon Sep 20 18:40:24 2010 No.1780580 >>1780544 nice sage bro.

>>	Anonymous Mon Sep 20 21:57:27 2010 No.1781330 Bump for interesting troll debate.

Anonymous Mon Sep 20 22:21:37 2010 No.1781425

actually einstein would have calculate or something and would have come to the conclusion that it would be the same speed as the speed of light, of course if you use some classic newton it doesnt work as for anything that goes near the speed of light you should forget that f=ma

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