WordNet
n. (physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them [syn: theory of gravitation, gravitational theory, Newton's theory of gravitation]
Usage examples of "theory of gravity".
From this experiment he deduced the theory of gravity-that all objects in the universe attracted one another with a force directly proportional to their mass and inversely proportional to their separation from one another.
On the other hand, the quantum theory of gravity has opened up a new possibility, in which there would be no boundary to space-time and so there would be no need to specify the behavior at the boundary.
Einstein's theory of gravity ousted Newton's because it fitted observations better, but Newton's remains accurate enough for many purposes, and is simpler, so it is by no means obsolete.
The general theory allows objects to be accelerated relative to each other in any way, and it includes a theory of gravity.
One has to use a quantum theory of gravity to understand how the universe began.
His tragically brief encounter with Einstein's theory of gravity uncovered one of the most striking and mysterious facets of the natural world.