Theory of General Relativity

[Takizawa]

General relativity, also known as the general theory of relativity, is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics. General relativity generalizes special relativity and Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time, or spacetime. In particular, the curvature of spacetime is directly related to the energy and momentum of whatever matter and radiation are present. The relation is specified by the Einstein field equations, a system of partial differential equations.

 

Some predictions of general relativity differ significantly from those of classical physics, especially concerning the passage of time, the geometry of space, the motion of bodies in free fall, and the propagation of light. Examples of such differences include gravitational time dilation, gravitational lensing, the gravitational redshift of light, and the gravitational time delay. The predictions of general relativity have been confirmed in all observations and experiments to date. Although general relativity is not the only relativistic theory of gravity, it is the simplest theory that is consistent with experimental data. However, unanswered questions remain, the most fundamental being how general relativity can be reconciled with the laws of quantum physics to produce a complete and self-consistent theory of quantum gravity.

Did you know about this theory? If so, what'd you think about it?

[CalculuS]

?

 

EDIT: next time type it out before you post it. 

[Shakaza]

...Where's the science? I was hoping for something that I would completely and utterly not understand, but noooooo....

 

Actually, I might understand it fairly well, but I wouldn't know unless someone actually posts some content about what the title suggests!

[LinkToThis]

Yes. 

You didn't really say anything worth discussing here?

 

[Takizawa]

...Where's the science? I was hoping for something that I would completely and utterly not understand, but noooooo....

 

Actually, I might understand it fairly, but I wouldn't know unless someone actually posts some content about what the title suggests!

There ya go

[ALwin]

Any theoretical physicists in the house?

[vanished]

Did you know about this theory? If so, what'd you think about it?

Really?  Yes... this has been common knowledge for decades... am I missing something here!?

[CydiaDash]

This is quite far fetched for a computer forum aha

[Nup]

Any theoretical physicists in the house?

 

 LukaP? 

[Shakaza]

Really?  Yes... this has been common knowledge for decades... am I missing something here!?

I think a better question to ask is if we comprehend it and understand the implications of it.

[ALwin]

 LukaP? 

 

Maybe the OP wants Sheldon Cooper and Leslie Winkle to come and start a discussion... :huh:

[Nup]

Maybe the OP wants Sheldon Cooper and Leslie Winkle to come and start a discussion... :huh:

 

probably haha

 

I know that recently a quantum physics was done that brought the two a litte closer, i think. dont really follow the stuff though. Cant find it though, so i may be remembering it wrong/ 

[ALwin]

A lot of the math and content involved in any papers that try to unify Relativity and Quantum physics can be difficult for the average person who is not a physicist to understand, let alone try and explain it to another non-physicist.  The best physicist that I have ever listened to who was able to explain these types of "high level" concepts and make almost anyone understand was probably Richard Feynman.  Watch the Feynman lecture videos on Youtube, they are available.

 

I'm not a physicist, I'm certain not many on this forum are, so it will be hard to hold a discussion on such a topic when the most that any of us may know/understand are generalizations.

 

Here are Part 1's to some of Feynman's videos:

 

[ColonelPanic]

Yes, I know about it.
Think it's alright, probably wouldn't strike up a GR conversation at the pub though. 
 

Mathematically it's boils down to something quite lovely, although learning everything around it mathematically was a bit a of a struggle (studying Minkovski space/Lorentzian manifolds/Riemann Tensors = not pleasant). 

Not really understanding what is being asked, so I'll end with my favourite Relativity joke.

 

 

 

A student recognizes Einstein in a train and asks:
Excuse me, professor, but does New York stop by this train?

[ManOfDisguise]

wat da fuk?

[StrongAsFe]

@ChasingPluto