دانلود کتاب The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory

String theory, many physicists believe, is the key to the unified field theory that eluded Einstein for more than thirty years. Deftly uniting quantum mechanics and general relativity—the two pillars of modern physics—string theory declares that all of the wondrous happenings in the universe arise from the vibrations of one single entity: microscopically tiny loops of energy that lie deep within the heart of matter.

In this brilliantly articulated and refreshingly clear book, Brian Greene relates the scientific story and the human struggle behind the search for the ultimate theory. Through the artful use of metaphor and analogy, The Elegant Universe makes some of the most sophisticated concepts ever contemplated viscerally accessible and thoroughly entertaining, bringing us closer than ever to understanding how the universe works.