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11 sie 2010 · The idea behind a communications satellite is simple: send a signal into space, and send it back down to another spot on the globe. In NASA's early days, engineers discovered the easiest way to accomplish this: bounce signals off a giant metal balloon floating in orbit.
- Communications Satellites: Making the Global Village Possible
14 min read. Communications Satellites: Making the Global...
- Communications Satellites: Making the Global Village Possible
30 lis 2010 · 14 min read. Communications Satellites: Making the Global Village Possible. by David J. Whalen. In 500 years, when humankind looks back at the dawn of space travel, Apollo’s landing on the Moon in 1969 may be the only event remembered.
Satellites positioned in high orbits could "see" large swaths of Earth, allowing them to receive and send signals from distant places. Satellites brought radical change, filling in communication gaps and providing telephone and television connection nearly worldwide.
Milestones in the history of communications satellites. Satellite. First. Launched. Polity. Sputnik 1. First satellite with radio transmitter [1] October 4, 1957. Soviet Union.
A story of the history and progression of satellite imagery over the last 60 years and its influence on local and global processes.
1 lis 2011 · This paper attempts to explain the “fil rouge” of the evolution of satellite technologies across six decades, analyzing successes and failures of past satellite missions, and concluding with a...
This paper attempts to explain the “fil rouge” of the evolution of satellite technologies across six decades, analyzing successes and failures of past satellite missions, and concluding with a picture of future satellite communications.
