Predating both the 1953 film, War of the Worlds, and the 1958 The Blob, this is the sort of story I think of when people talk about \The Golden Age\ of science fiction; a simpler time, when scientists all used slide-rulers, the hero in horn-rimmed glasses might as well be named Doctor Clayton Forrester, and the military general in charge of getting rid of the enemy can\'t wait to use nuclear wea