The precise principles available to describe gravity and other physical phenomena have no parallel in the social sciences.
This is inadequate to describe gravity in 3+1 dimensions which has local degrees of freedom according to general relativity.
This described gravity and electromagnetism at the same time.
To describe acceleration, and gravity, he developed the general theory of relativity, published in its complete form in 1916.
Later it was understood that it is possible to describe gravity in the framework of quantum field theory like the other fundamental forces.
Efforts to describe gravity using the same techniques have, to date, failed.
That theory describes gravity as the bending of space-time by matter and energy.
Right now, physics is able to describe gravity of real-life sized objects using general relativity.
For example, some physicists describe gravity in terms of ten dimensions all curled up.
String theory, which was being developed in that sort of time, also describes gravity in a unified way with the other forces.