Earth Time and Motion
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Sunrise Project
7618 Views
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How the Sun Moves
7286 Views
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How the Sun Moves Across the Sky
7927 Views
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Our Planet is a Clock
6693 Views
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Intro to Solar Orientation
7160 Views
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Greenwich Globe
7271 Views
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Equation of Time - Clocks vs Sundials
6970 Views
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Earth at Night
6781 Views
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Analemma over El Cerrito
7364 Views