DiscoveriesScienceThe Helicopter: A Hundred Years of HoveringBy Robert LemosScienceHow Super-Precise Atomic Clocks Will Change the World in a DecadeBy Quinn NortonScienceDec. 12, 2006: It's All Over for the Baiji Freshwater DolphinBy Tony LongScienceDec. 11, 1844: Laughing Gas Dulls the Pain of a Savage DentistBy Tony LongScienceAmateur Time Hackers Play With Atomic Clocks at HomeBy Quinn NortonScienceDec. 10, 1845: The Pneumatic Tire, an Idea Ahead of Its TimeBy Tony LongScienceDec. 7, 1941: Attack at Pearl Harbor a Bold, Desperate GambleBy Tony LongScienceDec. 6, 1850: The Eyes Have It, Thanks to the OphthalmoscopeBy Tony LongScienceDec. 5, 1951: 'Your Car Is on the 12th Floor, Lady'By Tony LongScienceDec. 4, 1858: It Was Very Cold the Day Chester Greenwood Was BornBy Tony LongScienceDec. 3, 1967: Patient Dies, but First Heart Transplant a SuccessBy Tony LongScienceNov. 30, 2004: Who Is Ken Jennings?By Tony LongScienceNov. 28, 1660: Hey, Guys, Let's Found Britain's Foremost Scientific AcademyBy Tony LongScienceThe Evolution of Gum — 5,000 Years of Pure Chewing SatisfactionBy Aria PearsonScienceWhat's Inside: Antifungal Agent Lotrimin UltraBy Patrick Di JustoScienceGetting a Grip: Building the Ultimate Robotic HandBy Gregory MoneScienceNov. 23, 1889: S.F. Gin Joint Hears the World's First JukeboxBy Tony LongScienceNov. 21, 1905: It Was a Very Good Year, If You Were EinsteinBy Tony LongScienceNov. 20, 1923: Traffic-Signal Patent Has GE Seeing GreenBy Tony LongScienceGenetic Nondiscrimination Bill Stalled in SenateBy Alexis MadrigalScienceNov. 14, 1889: Around the World in Only 72 DaysBy Tony LongScienceGenetic-Engineering Competitors Create Modular DNA Dev KitBy Alexis MadrigalScienceNov. 12, 1912: Scott's Polar Odyssey Comes to Its Official EndBy Tony LongScienceNov. 9, 1888: Jack the Ripper Strikes for the Last Time ... Or Does He?By Tony LongMore Stories