Earth Time and Motion
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Sunrise Project
907 Views
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How the Sun Moves
967 Views
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How the Sun Moves Across the Sky
908 Views
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Our Planet is a Clock
868 Views
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Intro to Solar Orientation
876 Views
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Greenwich Globe
925 Views
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Equation of Time - Clocks vs Sundials
875 Views
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Earth at Night
923 Views
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Analemma over El Cerrito
873 Views