December 18, 2002: String Theory - Dr. Michio Kaku

Theoretical physicist Dr. Michio Kaku joins Art Bell to discuss string theory, gravity, anti-gravity research, time-machine theory, and the search for a unified field theory after an opening hour on the looming war with Iraq. Art asks listeners whether they are willing to support military action without being told specifically why the country is going to war. Callers weigh in from across North America, expressing skepticism about the justification for an invasion.

Kaku also addresses the geopolitical crisis, warning that war could destabilize Pakistan, where roughly twenty Hiroshima-sized nuclear weapons could fall into fundamentalist hands. He argues the real architecture of U.S. foreign policy in the Middle East is oil and advocates for a solar hydrogen economy to reduce dependence on the most unstable region on Earth.

The conversation shifts to the nature of gravity, with Dr. Kaku explaining Einstein's view that space pushes rather than pulls. He discusses anti-gravity research, negative matter, the Casimir effect, time machine theory, and the search for a unified field theory. The pair also examine GPS-guided smart munitions, the biological warfare threat from former Soviet scientists, and what a cornered Saddam Hussein might unleash.