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A bolometer is a device for measuring radiant heat by means of a material having a temperature-dependent electrical resistance. [1] [2] It was invented in 1878 by the American astronomer Samuel Pierpont Langley .
The unpiloted Aerodrome Number 5 successfully flew on May 6, 1896. 1896 United States of America CRAFT-Aircraft Smithsonian Institution. Unpiloted, tandem-wing experimental aircraft built and tested by Samuel P. Langley. One one-horsepower, one-cylinder steam engine turning two pusher propellers via geared transmission system.
In 1896 Samuel Pierpont Langley, astronomer and secretary of the Smithsonian Institution, flew an unmanned steam-driven airplane model three-fourths of a mile. In 1898 he received a Congressional grant of $51,000 for further development of an airplane capable of carrying a person. Langley and his gifted assistant, Charles M. Manly, designed and ...
Samuel Pierpont Langley Unlike the two brothers, Langley was highly-educated and had more than ample funding in support of his efforts to develop an airplane. His stature at Secretary of the Smithsonian Institution lent great credibility to his efforts to build an airplane, as did his success with the unmanned aerodromes.
This second crash ended Langley's aeronautical work entirely. Long Description Professor Samuel Pierpont Langley (1834-1906) was a leading scientific figure in the United States in the latter nineteenth century, well known especially for his astronomical research. He became the third Secretary of the Smithsonian Institution in 1887.
Langley with His Aerodrome. Samuel P. Langley (1834-1906), astrophysicist and third Secretary of the Smithsonian Institution (1887-1906) stands at front left with a group of men under his "Aerodrome" or flying machine before its test launching off a houseboat.
サミュエル・ラングレー. サミュエル・ラングレー （Samuel Langley、 1834年 8月22日 - 1906年 2月27日 ）は、 アメリカ の 天文学者 、 発明家 で航空の先駆者の一人。. スミソニアン博物館 の3代目の事務局長で スミソニアン天体物理観測所 の設立者であった ...
