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  1. Isolated Fact, An (1980 Video)

    Subject
    Physics
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 25 min.

    To Newton it was only an isolated fact that the effects of gravity could be mimicked in an accelerating frame but to Einstein this principle of equivalence was the clue to a new theory of space time and...

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  2. Planets, The. Part 2: Mercury and Venus (1985 Video)

    Subject
    Astronomy
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 30 min.

    Mercury is the closest planet to the sun. It was not thought to rotate on its own axis so a solar day would equal a year. Shows how modern radar telescope techniques disproved this theory. The Mariner 10...

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