To a public harassed by headlines, atom-age scientists sometimes seem little more than laboratory soldiers. H-bombs and missiles explode out of their abstruse equations; the products of their most esoteric research are used to refine the practical arts of war. But last week in Washington, D.C. some 2,200 members of the American Physical Society and the National Academy of Sciences met at their spring meetings and read paper after paper to prove that they are still engaged in their principal job, prying into the secrets of the universe:
ΒΆ Nobel Laureate Harold Clayton Urey*...