Earth Time and Motion
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Sunrise Project
5883 Views
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How the Sun Moves
5655 Views
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How the Sun Moves Across the Sky
6201 Views
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Our Planet is a Clock
5337 Views
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Intro to Solar Orientation
5601 Views
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Greenwich Globe
5778 Views
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Equation of Time - Clocks vs Sundials
5515 Views
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Earth at Night
5345 Views
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Analemma over El Cerrito
5758 Views