Michio Kaku, professor of theoretical physics and co-founder of string field theory, is the author of nine books, including the best-selling "Hyperspace: A Scientific Odyssey Through Parallel Universes, Time Warps, and the 10th Dimension," and most recently, "Visions: How Science Will Revolutionize the 21st Century." His doctorate-level textbooks are required reading at top physics labs worldwide.

Dr. Michio Kaku's goal is to complete Einstein's dream of a "theory of everything", a single equation that unifies the 4 fundamental forces of the universe.

He has written nine books. Hyperspace and Visions, his most recent, are international best sellers and have been translated into many languages.

He hosts Explorations, a weekly radio program on science, which is carried on many stations across the country.

Explorations in Science with Dr. Michio Kaku, is an hour long radio program on science, technology, politics, and the environment. It is broadcast each week on WBAI New York City (99.5 FM), and re-aired on stations across the country. Explorations can also be heard around the world via the web.