Earth Time and Motion
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Sunrise Project
1842 Views
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How the Sun Moves
1945 Views
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How the Sun Moves Across the Sky
1910 Views
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Our Planet is a Clock
1816 Views
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Intro to Solar Orientation
1828 Views
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Greenwich Globe
1837 Views
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Equation of Time - Clocks vs Sundials
1802 Views
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Earth at Night
1852 Views
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Analemma over El Cerrito
1848 Views