One of the world's most celebrated science writers reveals the origins of
Einstein's General Theory?and provides a greater understanding of who Einstein
was at the time of this pivotal achievement.
In 1915, Albert Einstein presented his masterwork to the Prussian Academy of
Sciences?a theory of gravity, matter, space and time: the General Theory of
Relativity. Einstein himself said it was "the most valuable theory of my life,"
and "of incomparable beauty." It describes the evolution of the universe, black
holes, the behavior of orbiting neutron stars, and why clocks run slower on the
surface of the earth than in space. It even suggests the possibility of time
travel.
And