Tuesday

September 23, 2014

September 23, 2014

Posted by **mike** on Sunday, February 6, 2011 at 11:44am.

OR---What's the max.length of cord,drawn

on the cicumference of the earth,where

length of the cord appears same as arc?

Follow up 2nd question---At what minimum

height above earth the curvature is noticable?

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