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Samuel Pierpont Langley (August 22, 1834 – February 27, 1906) was an American aviation pioneer, astronomer and physicist who invented the bolometer. He was the third secretary of the Smithsonian Institution and a professor of astronomy at the University of Pittsburgh , where he was the director of the Allegheny Observatory .
Samuel Pierpont Langley's Aerodrome A (1903) The Wright brothers in the Wright Flyer (1903) Alberto Santos-Dumont in the 14-bis (1906) Other notable claims include: Karl Jatho, in Germany in his biplane (1903) Richard Pearse, in New Zealand in his monoplane (1903–1904) Trajan Vuia, in France (1906) Jacob Ellehammer, in Denmark (1906)
The Langley Aerodrome is a pioneering but unsuccessful manned, tandem wing-configuration powered flying machine, designed at the close of the 19th century by Smithsonian Institution Secretary Samuel Langley. The U.S. Army paid $50,000 for the project in 1898 after Langley's successful flights with small-scale unmanned models two years earlier.
The first bolometers made by Langley consisted of two steel, platinum, or palladium foil strips covered with lampblack. [ 4 ] [ 5 ] One strip was shielded from radiation and one exposed to it. The strips formed two branches of a Wheatstone bridge which was fitted with a sensitive galvanometer and connected to a battery.
1896: Samuel Pierpont Langley successfully flew unpiloted steam-powered models. [2] 1897: Carl Richard Nyberg's Flugan developed steam-powered aircraft over a period from 1897 to 1922, but they never achieved more than a few short hops. 1899: Gustave Whitehead built, and was purported to have flown, a steam-powered airplane in Pittsburgh ...
Manly helped Smithsonian Institution Secretary Samuel Pierpont Langley build The Great Aerodrome, which was intended to be a manned, powered, winged flying machine. Manly made major contributions to the development of the aircraft's revolutionary 52 hp gasoline-fueled radial engine, called the Manly–Balzer engine. Manly attempted to pilot the ...
John Pierpont Morgan (1837–1913), American financier and banker; John Pierpont Morgan, Jr. (1867–1943), American banker, finance executive, and philanthropist; Samuel Pierpont Langley (1834–1906), American astronomer, and physicist, inventor
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