Unlocking the Power of the AtomMany of the fanciful visions of science fiction came true in the twentieth century, although not exactly as first imagined. This 1927 Swedish reprint of a drawing by American cartoonist Robert Fuller satirizes a pair of professors who have split the atom and unwittingly destroyed their building and neighborhood in the process. In the Second World War, professors indeed harnessed the atom in bombs and decimated faraway cities and foreign civilians. (Mary Evans Picture Library/The Image Works)