Francais
Deutsch
Italiano
Refine Your Search
United States 1982 stock footage and images
- Showing 31999 to 32004 of 34981 results
more
HideColor Sound
Boys skating and a man driving a Ford Model-T on a road beside a frozen pond in winter
View of a car parked near icy pond while several boys sit at the pond edge. Children put on ice skates and a man gets into the car on the road beside. Boys ice skate away and the Model-T Ford automobile drives away.
Formula expressing relation between transmitted and received power and factors affecting Space Communications.
Space Communications and the related problems and developments. Animation: Final formula expressing the relation between power transmitted and power received. Comparison of the distance between Earth and the moon, and Earth and Pluto. Factors effecting Space Communication. Payload factor: Effect of payload weight of a communication equipment, transport of equipment, need for small and light equipment. Limitations in miniaturization of components: Inaccessibility in term of maintenance and service. Depicts longevity of power based on available power sources. Advantages and drawbacks of chemical batteries, solar batteries, nuclear batteries. States methods for reducing power consumption: equipping vehicles with command transponders. Factors effecting Sapce Communication: Spatial environment and equipment used. Example of information required to study the planet Venus: atmospheric composition, surface temperature changes and exact period of rotation. Explains spatial movement and solution for this factor: Placing four equally spaced terrestrial stations around the globe, joint by reliable communication links for continuity and data reception.
Transmission and reception of data, and frequencies and bandwidth considerations in Space Communications.
Space Communications and the related problems and developments. Animation: Additional factors introduces into Space Communications by transmission and reception of data. Frequencies and bandwidths applicable to Space Communications. Factors to be weighed while considering bandwidth: Available power and transmission system required. Narrower bandwidths used to conserve power, they're also less affected by noise interference. Depicts consumption of power by television, spoken word and teletype bandwidths. Telemetry: low bandwidth and power consumption. Explains Telemetry. Theory of Modern Communication and Binary digits or BITS. Depicts information required from outer space like: radio activity level of the moon's surface, abundance of water vapor in the Martian atmosphere, and variation in surface temperature of Mercury. Telemetry utilizes relatively small bandwidth and thus used as preferable mode of communication for research vehicles.
Use of video, and the various Orbiting and Satellite Systems in Space Communications.
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.
President Harry S Truman marches in parade during a reunion in Omaha; and Truman during 1948 presidential campaign
President Harry S Truman during his mid-Western visit. The 35th Infantry Division troops march on the streets in Omaha, Nebraska. Civilians stand on either sides of the road and cheer. The President's motorcade. President Truman marches with the troops during the reunion. President Truman and Mrs. Bess Truman greet soldiers at the White House. Aerial view of trailer park. President Truman seen signing a bill or documents as three officials stand behind him. During post-war housing boom, a new suburban residential neighborhood housing project in seen under construction. An apartment building also being built. Prices of eggs, meat and cheese are all shown rising at a market produce stand. The President at his desk in the Oval Office. Car drives along street with sign saying: "Veto Hartley-Taft, Slave Labor Bill" (the Taft-Harley bill on labor relations). President holding a document entitled, "Report of President's Committee on Civil Rights." Roman Catholic Bishop Francis J. Haas, a member of the the President's Committee, is seen in his office talking with another person.
Charles Lindbergh lands an air mail plane in Columbus after the test run from Newark.
Aviator Charles Lindbergh on an inspection tour of the new coast-to-coast express from Newark to Columbus. Lindbergh in the air mail aircraft cockpit as they fly over the Allegheny Mountains. He looks out at the grey clouds as they fly into a raging snow storm. Tree covered mountains. They fly over fields. Aerial views of landmarks in city in Columbus Ohio. View of airfield in Columbus. The plane lands at Columbus, Ohio after the test run. Colonel Lindbergh and his copilot, Robert S. Leroy (Bob Leroy), exit the plane and pose for the camera.
CRITICALPAST.COM: About Us | Contact Us | FAQs - How to Order | License Agreement | My Account | My Lightboxes | Shopping Cart | Advanced Search | Featured Collections | Website Terms & Conditions | Privacy Policy ©2026 CriticalPast LLC.
License Agreement |
Terms & Conditions |
Privacy Policy
©2026 CriticalPast LLC.