DiscoveriesScienceMarch 21, 1999: Around the World in 20 DaysScienceMutated HIV Suggests New Approach to AIDSScienceMarch 20, 1800: Volta's Battery Shows PotentialScienceMarch 19, 1474: Venice Enacts a Patently Original IdeaScienceWorld's Longest Accelerator Probes Universe's Tiniest ParticlesScienceMarch 14, 1899: Zeppelin Gets Patent for a Really Big IdeaScienceMarch 13, 1842: Henry Shrapnel Dies, But His Name Lives OnScienceMarch 12, 1923: Talkies Talk ... on Their OwnSciencePopulation Bomb Author Tackles Cultural EvolutionScienceMarch 11, A.D. 105: The Emperor's Court Is No Longer a Paperless OfficeScienceMarch 10, 1876: 'Mr. Watson, Come Here ... 'ScienceMarch 6, 1937: Birth of a Soviet Hero, First Woman Into SpaceScienceMarch 5, 1872: Westinghouse Gives Railroads a BrakeScienceMarch 4, 1890: Bridge Tech Takes a Great Leap ForthScienceMarch 3, 1879: Birth of the B's (Thought for Food)ScienceRock Star-Turned-Physicist Trades Keyboard for Atom SmasherScienceHumans Are Just Machines for Propagating MemesScienceFeb. 29, 45 B.C.: Julius Caesar Takes the LeapScienceFeb. 28, 1561: 'Father of Surgery' Explains the Head WoundScienceForget Dark Matter: This Astrophysicist Found the Fastest Way to Board a PlaneScienceFeb. 27, 1812: Rage, Rage Against the Industrial AgeScienceSurfer-Physicist's Unified Theory Leads to Fame, BacklashScienceFeb. 26, 1935: Radar, the Invention That Saved BritainScienceThree Smart Things You Should Know About CurrencyMore Stories