inventionsOct. 30, 1958: Medical Oops Leads to First Coronary AngiogramOct. 29, 1675: Leibniz ∫ums It All Up, SerieslyOct. 28, 1793: Whitney's Cotton Gin Patent Not Worth MuchOct. 21, 1879: Edison Gets the Bright Light RightOct. 20, 1975: Atari Sits Down on Hi-WayBreakthrough Awards Salute InnovatorsOct. 9, 1855: Music-Making a Steampunk Can LoveOct. 7, 1806: Do You Copy? Carbon Paper PatentedGearGallery: Tablet Computing From 1888 to 2010Sept. 16, 1736: One Degree of Separation — Fahrenheit DiesSept. 10, 1846: Sewing Machine Starts New ThreadAug. 26, 1346: First Cannon Fired in Battle, MaybeAug. 14, 1877: Internal Combustion's Stroke of GeniusAug. 11, 1903: Instant Coffee, a Mixed BlessingAug. 10, 1909: Leo Fender and the Heart of Rock 'n' RollGearNew Stem and Seatposts Fine-Tune BikesAug. 4, 1693: Dom Pérignon 'Drinks the Stars'Lego Click! Awards Salute Brainy KidsJuly 30, 1898: Car Ads Get RollingJuly 28, 1907: Tupperware's First BurpJuly 27, 1888: Electric Tricycle Jolts Proper BostoniansJuly 23, 1995: Inventors Hall of Fame Opens DoorsJuly 17, 1902: An Invention to Beat the Heat, HumidityJuly 16, 1867: Concrete Gets Some Positive ReinforcementMore Stories