Word: vidicon
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Dates: during 1960-1969
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...tape, with its endless rows of digits, told the men who could read it that Mariner seemed to be obeying the intricate orders built into it so many months before. According to plan, shortly after the scanning mechanisms sighted the planet, automatically activating the photo system, the six-inch vidicon tube focused through a reflecting telescope and took its first picture. It was programmed to take one picture every 48 seconds. Each picture was made up of 200 lines-compared with 525 lines on commercial TV screens. And each line was made up of 200 dots. The pictures were held...