Earth Time and Motion
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Sunrise Project
7638 Views
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How the Sun Moves
7307 Views
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How the Sun Moves Across the Sky
7954 Views
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Our Planet is a Clock
6732 Views
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Intro to Solar Orientation
7193 Views
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Greenwich Globe
7294 Views
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Equation of Time - Clocks vs Sundials
6988 Views
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Earth at Night
6806 Views
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Analemma over El Cerrito
7387 Views