Earth Time and Motion
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Sunrise Project
5200 Views
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How the Sun Moves
5015 Views
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How the Sun Moves Across the Sky
5490 Views
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Our Planet is a Clock
4740 Views
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Intro to Solar Orientation
4957 Views
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Greenwich Globe
5154 Views
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Equation of Time - Clocks vs Sundials
4864 Views
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Earth at Night
4758 Views
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Analemma over El Cerrito
5109 Views