Posted by NC on 12/01/06 02:11

Pupkin wrote:
>
> $r = the radius of the earth, but which radius?
>
> http://en.wikipedia.org/wiki/Earth_radius

Aww, come on...

Equatorial radius: 6,378.135 km
Polar radius: 6,356.750 km
Equatorial radius of curvature: 6,335.437 km
Polar radius of curvature: 6,399.592 km

The difference between the lowest and the highest of the four
is a whopping 1%...

Cheers,
NC

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