Description: Take a listen to clips from The World Is Yours episode “Early Air Mail” and its short reign under the United States Postal Service from 1916 to 1926.
Description: It can be so frustrating to put great effort into something, and then to have your work and achievements called into question. I can't begin to imagine how frustrated Samuel Pierpont Langley was in 1903. By that time, he had spent over forty years studying astrophysics and aerodynamics. His work on astronomically-derived time measurement in the late 1860's is the heart of the
Showing results 1 - 2 of 2 for National Air and Space Museum (U.S.). Department of Aeronautics