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« on: February 23, 2016, 06:36:30 AM »
About every 18 months there is a total solar eclipse that is visible from different locations on earth.
With it we can figure out the size of the umbra, penumbra, and both their paths across the earth. What can we figure out about the shape of the earth, size of both bodies (moon/sun), and there distance from us?
Please provide evidence for your claim and/or sources. I'm not interested in random untested thoughts off of the top of your head, although I realize most won't be able to stop themselves.