Includes index.

Hubble and the expanding universe -- Einstein and the wonder of light -- Bohr and the puzzles of the quantum world -- Wegener and the dance of the continents -- Big bang, big crunch, and big bore -- Fermat, Godel, and fuzzy math -- Mendel, Watson, Crick, and the human genome -- Hominids, humans, and the search for origins -- Turing and the brain as computer, and vice versa -- Freud, the unconscious, and other views.