Morning light shines softly through a large glass window as a travel-weary Michio Kaku gamely musters a smile. Just a few hours removed from a cross-country flight from the East Coast, it doesn't take a rocket scientist to see that this physicist is plain tired. Then the camera starts rolling. In an instant, Kaku looks rejuvenated as he plays to his audience and waxes poetic about his favorite subject -- science.
In the world occupied by nerds and techno geeks, theoretical physicist and futurist Kaku is akin to a rock star. Chalk it up to a flowing mane of pepper-gray locks and the fact he co-created string field theory (which tries to un
