Earth Time and Motion
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Sunrise Project
6700 Views
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How the Sun Moves
6474 Views
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How the Sun Moves Across the Sky
7049 Views
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Our Planet is a Clock
6013 Views
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Intro to Solar Orientation
6348 Views
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Greenwich Globe
6519 Views
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Equation of Time - Clocks vs Sundials
6217 Views
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Earth at Night
6058 Views
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Analemma over El Cerrito
6556 Views