Born: 1857Birthplace: Rochester, N.Y Calculating machine—In 1885 Burroughs submitted his first patent for his “calculating machine. ” This first model needed a special knack to use and Burroughs…
Born: 1865Birthplace: Cleveland, Ohio Manufacture of gasoline—Burton developed the high heat and high pressure cracking process of fuel oil which more than doubled the potential yield of gasoline…
Born: 1873Birthplace: Hudson, Mass. Vacuum tube—Coolidge invented ductile tungsten, the filament material still used in incandescent lamps. He also invented the “Coolidge tube”, the model upon…
Born: 1908Birthplace: Bristol, Pa. Polyurethane—The Hanford and Holmes process is the basis today for the manufacture of all polyurethane. Polyurethane is used as an upholstery material, heat…
Born: 1913Birthplace: Ann Arbor, Mich. Variable frequency oscillation generator—Also known as the “audio oscillator,” this was the first practical method of generating high-quality audio…
Born: 1858Birthplace: Brooklyn, N.Y. Induction coil—Stanley designed a practical induction coil system that varied alternating current (AC) voltage. His coil became the prototype for all future…
Born: 1889Birthplace: Luxembourg Method for manufacturing titanium and alloys thereof—Metallurgist William Kroll invented the Kroll process, a technique for producing titanium and zirconium. His…
Born: 2/9/1773Birthplace: Charles City County, Va. William Henry Harrison was born in Charles City County, Va., on Feb. 9, 1773. Joining the army in 1791, he was active in Indian fighting in the…
Born: 9/15/1857Birthplace: Cincinnati, Ohio William Howard Taft was born in Cincinnati on Sept. 15, 1857. A Yale graduate, he entered Ohio Republican politics in the 1880s. In 1886 he married Helen…
Born: 8/19/1946Birthplace: Hope, Ark. William Jefferson Clinton was born William Jefferson Blythe III in Hope, Ark., on Aug. 19, 1946. He was named for his father, who was killed in an automobile…
