Space Communications and the related problems and developments. Animation: Use of video for Space Communications requires highly directive antennas for power economy. Depicts enlargement of capture area of antennas located at terrestrial reception points. Efficiency in signal processing of the receiving equipment increased, to reduce intrinsic noise by reducing temperature of components. A satellite in Earth's orbit for space and terrestrial communications. Explains the Passive Sattelite Relay System using reflecting spheres; Single Orbiting Active Satellite System using line of sight communication, ideal for weather forecasting and mapping; and the sophisticated active Day Period Cry Satellite Orbiting System equipped with transponders.
A U.S. Air Force B-47 Stratojet strategic bomber in flight. View through windshield showing windshield wiper and out rear cockpit toward tail of aircraft. Aircraft in flight over clouds. KC-135 refueling boom seen attached and detaching. Belly of the B-47. View of the sun through the clouds.
Aerial view of U.S. Navy destroyer, USS Shelton (DD-790) sailing. Aerial views of a U.S. Air Force T-29 ("Flying classroom") with radome under fuselage, in flight over water. Clouds over the aircraft. U.S. Air Force roundel on the starboard side of the plane.
U.S. Air Force Communications Center. U.S. Air Force Communications Service insignia. Control panels of the teletype machines. Labels on panel read 'San Pablo', 'Lajes', 'Kindley', 'Ramey', 'Croughton', and 'Sidi Slimane'. Receivers and dials on the control panel.
U.S. Air Foce pilot in cockpit of aircraft wearing MA-2 helmet. The pilot in cockpit. Views of the helmet. Shell and faceplate of the helmet.
President Harry S Truman takes the oath before various U.S. officials in the United States. Sign reads 'Birthplace of President Truman - Lamar.' Buildings and people on the street. Women seated in a garden. Officer Truman stands with other officers of the U.S. Army during World War I. Soldiers in a battlefield in France. Black smoke arises due to the artillery fire and explosions. A trench, soldiers march with the U.S. flag. Truman holds two Madonna statues presented to him during a ceremony in the U.S. An Army officer meets Truman and other officials. Army trucks and artillery during the parade.
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