Earth Time and Motion
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Sunrise Project
6114 Views
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How the Sun Moves
5876 Views
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How the Sun Moves Across the Sky
6439 Views
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Our Planet is a Clock
5536 Views
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Intro to Solar Orientation
5818 Views
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Greenwich Globe
5987 Views
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Equation of Time - Clocks vs Sundials
5749 Views
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Earth at Night
5535 Views
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Analemma over El Cerrito
5968 Views