Earth Time and Motion
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Sunrise Project
5549 Views
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How the Sun Moves
5358 Views
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How the Sun Moves Across the Sky
5873 Views
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Our Planet is a Clock
5046 Views
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Intro to Solar Orientation
5296 Views
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Greenwich Globe
5488 Views
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Equation of Time - Clocks vs Sundials
5197 Views
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Earth at Night
5063 Views
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Analemma over El Cerrito
5439 Views