Earth Time and Motion
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Sunrise Project
6438 Views
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How the Sun Moves
6205 Views
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How the Sun Moves Across the Sky
6790 Views
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Our Planet is a Clock
5806 Views
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Intro to Solar Orientation
6112 Views
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Greenwich Globe
6319 Views
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Equation of Time - Clocks vs Sundials
5993 Views
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Earth at Night
5835 Views
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Analemma over El Cerrito
6316 Views