This could rule out popular theories of dark energy that modify the
theory of gravity, and leaves fewer places to search for the elusive fifth force.
It cannot fully explain gravity inside a black hole, and at some point we will need to move beyond Einstein's theory to a more comprehensive
theory of gravity that explains what a black hole is."
At some point a more comprehensive
theory of gravity may be required, she said.
Quantum physics and the theories behind it did not come about suddenly, like the legendary apple falling on Newton's head, which gave rise to his
theory of gravity.
He wanted to disprove Aristotle's
theory of gravity which stated that heavier objects fell faster than lighter objects.
While semiclassical gravity is widely thought of as a workable limiting approximation until a quantum
theory of gravity is discovered, there are researchers who treat semiclassical gravity as a real possibility and hence in need of experimental tests [2].
Disbelief in the
theory of gravity is easily disproven by experiment: place the disbeliever on a ledge, push him off, and observe whether he goes up or down.
If the presence of dark matter were only an illusion, arising because we're using the wrong
theory of gravity, then we'd always see signs of it in galaxies.
With clear and concise instructions and demonstrations with the ice cubes in the mocktail and the ice cream in the dessert, Jehan broke away from her commentary and launched into what appeared to be a nursery rhyme beginning with "Once upon a time.", but instead of a story of levity, the crowd were given the
theory of gravity.