How Did People Measure the Earth?

Anyone here knows how did man discover how large is the earth?
Need this answer for science class.

http://www.enchantedlearning.com/subjects/astronomy/planets/earth/index.shtml
http://en.wikipedia.org/wiki/History_of_geodesy

2007-10-22 10:55:36 · answer #1 · answered by paul h 7 · 0⤊ 0⤋

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