Earth Time and Motion
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Sunrise Project
6603 Views
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How the Sun Moves
6379 Views
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How the Sun Moves Across the Sky
6961 Views
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Our Planet is a Clock
5945 Views
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Intro to Solar Orientation
6278 Views
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Greenwich Globe
6446 Views
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Equation of Time - Clocks vs Sundials
6130 Views
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Earth at Night
5982 Views
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Analemma over El Cerrito
6470 Views