Hedy Lamarr is remembered most for the asset she valued least: her beauty. Richard Rhodes, himself best known for doorstop histories including 1986's The Making of the Atomic Bomb, is out to change that with Hedy's Folly: The Life and Breakthrough Inventions of Hedy Lamarr. The slim volume may not possess the gravity of the Pulitzer Prize-winning author's four-part history of the nuclear age, but it certainly doesn't lack for charm or contemporary relevance. For in addition to being a legendary screen siren, Hedy Lamarr was an inventor whose contributions to the technology that now surrounds