Observations: Difference between revisions

move Distance and Perspective back to Observations
(moved Antarctica,Distance and Perspective from Observations to Earth)
(move Distance and Perspective back to Observations)
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| [[Observations/Radio wave propagation|Radio wave propagation]] || Radio wave propagation
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| [[Observations/Distance|Distance]] || We can see too far, where's the curve?
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| [[Observations/Perspective|Perspective]] || Understanding Perspective
|}