William David Coolidge (/ˈkuːlɪdʒ/; October 23, 1873 – February 3, 1975) was an American physicist and engineer, who made major contributions to X-ray...

William Coolidge may refer to: William D. Coolidge (1873–1975), American physicist W. A. B. Coolidge (William Augustus Brevoort Coolidge, 1850–1926), American...

Calvin Coolidge's tenure as the 30th president of the United States began on August 2, 1923, when Coolidge became president upon Warren G. Harding's death...

efficiency, notably with the introduction of the tungsten filament by William D. Coolidge, who applied for a patent in 1912. This innovation became a standard...

greater efficacy with less reduction in filament life. In 1906, William D. Coolidge developed a method of making "ductile tungsten" from sintered tungsten...

patent it, overturning U.S. patent 1,082,933 granted in 1913 to William D. Coolidge. It is suggested that remnants of wolfram have been found in what...

known as William Johnson Hippopotamus (before 1927 – October 11, 1955), was a pygmy hippopotamus given to United States President Calvin Coolidge. Captured...

a tendency toward brittleness, and recrystallization. In 1906, William D. Coolidge filed a patent for rendering molybdenum ductile, leading to applications...

Woolsey William D. Coolidge (1873–1975), American physicist W. A. B. Coolidge (1850–1926), American historian, theologian, and mountaineer Butch Coolidge, character...

Calvin Coolidge (born John Calvin Coolidge Jr. /ˈkuːlɪdʒ/ KOOL-ij; July 4, 1872 – January 5, 1933) was the 30th president of the United States, serving...