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In recent years, scientists have begun using satellite technology to study earthquakes from space. By monitoring the tiniest movements of the Earth's crust, they are zeroing in on the spots where strain is building up and the crust will most likely snap. As this science bulletin illustrates, these efforts could help California residents protect the areas at greatest risk before the next big quake strikes.
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It's a technological miracle we rarely stop to consider - a signal sent thousands of kilometers across the globe in a matter of seconds, so that millions of people can watch a game-winning play or breaking news. This program shows how 21st-century communications satellites are designed and constructed. Going inside Astrium, a high-profile aerospace engineering firm, the film illustrates the development of satellite payloads and the assembly of precision...
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English
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Satellites play a bigger part in modern life than most people ever consider. These masterpieces of technology are the single greatest product of the space program and have transformed our world. Not only do they provide everyday services - satellite TV, GPS, timekeeping, weather tracking - they've revealed lost cities, protected endangered species, taken lives in war and saved them in natural disasters. In this program, space scientist Dr. Maggie...
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English
Description
Following the successful Soviet launch of the Sputnik satellite in 1957, the United States entered into a "space race" with the Soviet Union. Each country attempted to develop new satellites and spacecraft that they felt would prove the superiority of their respective economic systems during the rivalry of the cold war. In 1960, the United States launched a greatly improved weather satellite that would help forecasters predict the weather with greater...