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Aërodrome No. 5
Langley’s steam-powered Aërodrome No. 5 in flight, May 6, 1896. Photo by Alexander Graham Bell. 
N 4. voa frente ao Professor Langley. -
Samuel Pierpont Langley
Samuel Pierpont Langley, circa 1900 Astronomer and inventor Samuel Langley was born on August 22, 1834.
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