Word: scans
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Dates: during 1960-1969
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...flight. Working with a duplicate of the ship that was far out in space, Schneiderman's team manned their posts and computed answers to a nerve-racking sequence of simulated problems. They dealt with every imaginable glitch, from premature starts of the camera to unprogrammed movements of the scan platform that was designed to pick up the planet and tell the TV camera when to start functioning. Every decision the team made was fed into a duplicate Mariner in the laboratory, just as radioed commands might later be sent into space. The difference was that on these practice runs...
...first command was sent when Mariner was still 107,000 miles away from Mars. This turned on the camera's shutter mechanism, started the scan platform searching with a wide-angle sensor for light from Mars, and turned on the tape recorder's power. Everything was going unbelievably well. Newsmen and families of the scientists gathered in JPL's Von Kármán Auditorium to await the cryptic reports from the primary tracking stations at Johannesburg in South Africa, Woomera in Australia and Goldstone in California...
...their lectures, argue that students who retain the cepts acquire an understanding that goes beyond a rote knowledge of who said what. These teachers may also delight in the cept as a handy way of rating the quality of a student's essay in quantitative terms. They merely scan the essay, underline the cepts, assign a numerical value to each, and tot them up. Other teachers never admit they are even aware of cepts-but tacitly use them anyway in grading. Superlative ceptsmanship amounts to a canny duel between teacher and student...
...pictures fed to the TV networks came from a newly-developed device called a scan converter, which speeded up signals from the spacecraft so that they could be received on standard broadcast sets...
...above most of the dust and water vapor in the Earth's atmosphere, high enough for a clear look at the dark-blue daytime sky where stars and planets glow with hardly diminished brilliance. Most important of all, it was high enough for the mechanized scope to scan accurately the infra red rays from the sun that were being bounced off Venus...