A unified theory embracing all physical phenomena is a major goal of theoretical physics. In the early 1980s, many physicists looked to eleven-dimensional super

Presented in clear and accessible language with wonderfully supportive graphics, Roberts offers the reader a voyage through the development of human knowledge.

Introduces the superstring theory that attempts to unite general relativity and quantum mechanics.

The universe has many secrets. It may hide additional dimensions of space other than the familier three we recognize. There might even be another universe adjac

The national bestselling author of The God Equation takes us on a thrilling journey to explore black holes and time machines, multidimensional space and the pos