What really is gravity and why is it so hard to find out a physics equation that works with everything?

Question

I heard that Einstein couldn't figure it out before he died.

Answer 1

Einstein's equations in his theory of general relativity have been shown to be correct to the better part in a factor of 12, and is, along with quantum mechanics, one of the most precise theories humanity has to describe the fundamental physical phenomena of our universe. General relativity has predicted many phenomena which were proven to happen, such as gravitational lensing and the perihelion precession of Mercury.

According to General Relativity, gravity is the warping of space in the presence of matter or energy.

Answer 2

Gravity is the force that comes from every mass that pulls other masses towards it. this is only noticable when the pulling object has incredebly large density. So, here on earth, the earth's density pulls us towards it. Black holes are not very big, but a black hole is a concentration of incredibly dense matter. Thus, it is strong enough to absorb even light. The theory of everything is so hard to figure out simply because everything is talking about one h*ll of a lot of confusing and diverse stuff.

Answer 3

Gravity is one of the 5 forces governing our physical universe.
It is difficult to link these forces because they seem independent of each other.
Actually the new strings theory (with 11 dimensions) gives a link between all these forces.

Answer 4

what do you mean find a physics equation for every thing havent you ever heard of the gravitational constant using that you can find the gravatational force of any planet if gravity is what your talking about
as einstien said (well sorta) its all relative