The difference between the longest and shortest diameters is 44
kilometers (27 miles), and that means that the "oblateness" of the
earth (its departure from true sphericity) is 44/12755, or
-0.0034. This amounts to l/3 of 1 percent.
+0.0034. This amounts to 1/3 of 1 percent.
To put it another way, on a flat surface, curvature is 0 per mile
everywhere. On the earth's spherical surface, curvature is 0.000126
Naturally, the theories we now have might be considered wrong in the
simplistic sense of my English Lit correspondent, but in a much truer
and subtler sense, they need only be considered incomplete.
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