Earth Time and Motion
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Sunrise Project
4127 Views
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How the Sun Moves
3958 Views
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How the Sun Moves Across the Sky
4318 Views
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Our Planet is a Clock
3819 Views
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Intro to Solar Orientation
3960 Views
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Greenwich Globe
4222 Views
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Equation of Time - Clocks vs Sundials
3912 Views
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Earth at Night
3824 Views
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Analemma over El Cerrito
4158 Views