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Ancient Observatories (Pt 2): Observatories

Second segment of NASA Connect Ancient Observatories explaining how the height of the sun relates to the growing seasons and the length of daylight. This segment describes how Ancient Egyptian and ...  
 
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jqjacobs (10 months ago) Show Hide
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Hilarous! Greeks invented the stick!

Maybe they got the idea from a 100-foot-tall obelisk in Egypt.

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