Samuel Langley

Langley, Samuel


Born Aug. 22, 1834, in Roxbury, Mass.; died Feb. 27, 1906, in Aiken, S.C. American astrophysicist.

Langley was appointed director of the Allegheny Observatory in 1867. Beginning in 1887 he was at the Smithsonian Institution in Washington. Langley studied the distribution of energy in the solar spectrum and reestablished the solar constant. He invented the bolometer in 1880–81 and used it to measure the intensity of solar radiation. On the basis of these measurements, Langley compiled an atlas in 1901 of the infrared part of the solar spectrum.


Abbot, C. G. Samuel Pierpont Langley. Washington, D. C., 1934. (Smithsonian Miscellaneous Collections, vol. 92, no. 8, publication 3281.)
References in periodicals archive ?
Neither ever married, graduated from high school, or left the family home, but together they managed to solve the enigmas of lift, propulsion, and control that had eluded more famous and moneyed inventors like the Smithsonian's Samuel Langley and German Otto Lilienthal.
Much like Samuel Langley, designing an aircraft carrier before we develop the first working airplane is commendable and forward-thinking but can often inhibit innovation.
In 1903 a devoted American experimenter with flying machines, Samuel Langley, launched a machine called the Aerodrome off a barge where the Potomac and Anacostia rivers meet.
For example, the Wright brothers were terrified of their father; Samuel Langley was a competitor and a tyrant; and Glenn Curtiss was named for the town where he was born.
After tracing the work of a number of pioneering experimenters including George Cayley, Otto Lilienthal, and Samuel Langley, Crouch provides a short but informative analysis on how and why Wilbur and Orville Wright succeeded in giving humankind wings.
Early experimenters--Otto Lilienthal, Samuel Langley, Octave Chanute, and others--had established a solid base for understanding wing design and air-pressure principles essential to remaining aloft.
8, 1903, Samuel Langley watched helplessly as 17 years of hard work crashed into the Potomac River near Washington.
Samuel Langley had once been recognized as his country's greatest scientist.
E veryone was sure Samuel Langley would be the first man to fly.
Destiny can so often be a friend of the unexpected and in First To Fly , American writer James Tobin has provided a compellingly vivid account of how two brothers came out of midwestern obscurity to win the race to fly against Samuel Langley, head of the prestigious Smithsonian Institution.
They were also keeping an eye on the activities of Samuel Langley.
Inventor, solar astronomer and well-regarded scientist, Samuel Langley was one of the few professional researchers of his day who believed man was destined to fly.