What is the difference between the theory of gravity and the law of gravity?

Newton's law of Gravity involves matter creating forces that change motion and Einstein's Relativity involves matter "warping" space and changing motion.

The Deflection of 1.7" seconds explained by Einstein as the result of curvature is better explained by Newton, where g is the earths gravity acceleration 9.8 m/s^2 and Rs= 150Gm distance to the sun and d the deflection due to the earth's gravity:

Tan def = d/Rs = 1/2 gt^2/Rs= 1/2 9.8 (Rs/c)^2 /Rs = 1/2 9.8 Rs/c^2 = 8.166E-8 with arctangent =1.68".

This indicates that Einstein's Relativity Theory of space curvature is defective or wrong.

Newton and Einstein's Theory of Gravity are defective in leaving out the vector energy in their Gravity Theory. The correct Theory of Gravity involves quaternion energy that consists of scalar energy and vector energy E= -mu/r + mcV. The Quaternion Theory of Gravity confirms Newton's Universal Law as opposed to Einstein's space warping Theory.