The Elegant Universe

The Elegant Universe – Brian Greene

For much of the twentieth century, physics rested on two great but incompatible theories: general relativity, which describes gravity and the large-scale structure of the universe, and quantum mechanics, which describes the behavior of the smallest particles. In The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory, physicist Brian Greene of Columbia University explains how string theory attempts to unite them.

Greene begins with clear explanations of special and general relativity and quantum mechanics, using vivid analogies and thought experiments to make difficult ideas accessible. He then shows why the two theories clash when applied to extreme conditions, such as the centers of black holes and the first moments of the universe.

String theory, he explains, proposes that the fundamental constituents of nature are not point-like particles but tiny vibrating strings of energy, whose different patterns of vibration produce the different particles and forces. For the theory to work, the universe must have extra spatial dimensions beyond the three we experience, curled up so small that we cannot see them. Greene explores these hidden dimensions, the role of supersymmetry, the possibility that space can tear and repair itself, and the development of M-theory, which unified different versions of string theory.

Written with enthusiasm and clarity, the book became a bestseller and was adapted into a television series.

The Elegant Universe is an excellent introduction to modern physics for curious readers. Readers should note that string theory remains unconfirmed by experiment and is debated among physicists, and that the field has developed since publication.