Did we really need relativity theory to calculate gravity?

Question

Why not use simple solutions?The best explanations are they not usually the simplest ones?

Isnt relativity theory basically amounts to the same thing Newton was explaining ,like The G universal gravity constant = the ratio of the Curvature of space and the stress energy momentum Tensor?

Answer 1

Yes...thus far, it IS the simplest and best explanation of gravity...quantum mechanics doesn't explain gravity at all. What is NOW needed is a theory of "everything" that can link relativity to QM so that they're BOTH compatible.

Answer 2

It depends on how strong the gravitational field is and how fast you're moving. For spacecraft flying around the solar system or orbiting the earth, Newton's equations give the same results as Einstein's, and they're simpler. Relativity only becomes noticeable at very high speeds or in very strong gravitational fields; it's detectable at spacecraft speeds, but only barely.

Answer 3

No.

Isaac Newton decsribed the force of attraction due to gravity long before relativity theories began.

Basicly, it states the force is proportional to the sum of the masses, and inversely proportion to the square of their centroid distance:

F=M1 + M2 / d^2

Answer 4

the best explanations are the simplest ones that explain all the data

newton's theory(the simple one) does not explain all the data

but in our reality as humans on earth, we really dont "need" einsteins equation unless we want an ungodly high degree of accuracy

Answer 5

it depends of what gravity you want to calculate...
if you want the earth gravity is ok no t to use the relativity but if you want to calculate the gravity of a black hole you must take it into account or your calculations will be far away from reality

Answer 6

Newton did it very well, long before relativity.