Earth Time and Motion
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Sunrise Project
919 Views
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How the Sun Moves
982 Views
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How the Sun Moves Across the Sky
925 Views
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Our Planet is a Clock
880 Views
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Intro to Solar Orientation
887 Views
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Greenwich Globe
937 Views
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Equation of Time - Clocks vs Sundials
891 Views
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Earth at Night
938 Views
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Analemma over El Cerrito
890 Views