Filter Results
Primary Source
UAV (Drones) Inquiry Unit
UAV (Drones) Inquiry Unit Manned aerial balloons were used for gathering intelligence before the modern development of unpiloted reconnaissance aircraft. In these photos, taken by Matthew Brady on …
Learn more
Primary Source
UAV (Drones) Inquiry Unit
UAV (Drones) Inquiry Unit Los Angeles Times. January 28, 1938, morning edition. Before the U.S. entered World War II, research had begun on remote, radio-controlled airplanes. At first a result …
Learn more
Primary Source
UAV (Drones) Inquiry Unit
UAV (Drones) Inquiry Unit The United States was not the only nation to employ aerial balloons for reconnaissance. Even after airplanes were in use during World War I, all participating nations used…
Learn more
Primary Source
UAV (Drones) Inquiry Unit
The Prime Minister, Mr. Winston Churchill, with Captain The Right Honourable David Margesson, Secretary of State for War, watching preparations being made in an unspecified UK location for the launch …
Learn more
Primary Source
UAV (Drones) Inquiry Unit
Made of paper or rubberized silk, the Japanese Balloon Bombs, carried anti-personnel and incendiary bombs. Visit Source 1 Visit Source 2 Download PDF …
Learn more
Primary Source
UAV (Drones) Inquiry Unit
SpeedNews 8th Annual Aerospace & Defense Industry Suppliers Conference— Extending the Value of Unmanned Aerial Systems into Civil Air Space Bruce Gerding, of Northrop Grumman, addresses Aeros…
Learn more
Primary Source
Radio Inquiry Unit
Radio Inquiry Unit Electric Waves, Being Researches on the Propagation of Electric Action with Finite Velocity Through Space, by Dr. Heinrich Hertz, 1857-1894. The English translation of Hertz 
Learn more
Primary Source
Radio Inquiry Unit and Information Theory Inquiry Unit
In 1909, Guglielmo Marconi was awarded the Nobel Prize for his contribution to the development of wireless telegraphy. Here you will find a link to the lecture, which includes Marconi’s explanation …
Learn more
Primary Source
Radio Inquiry Unit
Radio Inquiry Unit Magnavox radio phonograph ad, 1946, David Sarnoff Library Download PDF…
Learn more
Primary Source
Radio Inquiry Unit
Radio Inquiry Unit - Staging the Question RCA instruction book and catalog, 1922, David Sarnoff Library Download PDF…
Learn more