Earth Time and Motion
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Sunrise Project
578 Views
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How the Sun Moves
586 Views
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How the Sun Moves Across the Sky
579 Views
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Our Planet is a Clock
549 Views
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Intro to Solar Orientation
551 Views
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Greenwich Globe
594 Views
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Equation of Time - Clocks vs Sundials
559 Views
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Earth at Night
626 Views
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Analemma over El Cerrito
554 Views