DrJones writes:
And you'd be wrong as the Earth is not a perfect sphere, but rather is an oblate spheriod, and thus the equator is not a perfect circle.
just a technical correction...the equator of a perfectly oblate spheroid is a circle, as are all latitude lines. the longitudinal lines are ellipses with a positive eccentricity.
however, since the earth isnt even a perfect oblate spheroid, and because of the moon's tidal force, even the
projection of the sea level through any land masses encountered as it travels around the earth and back to it's starting point, is still not a circle, so DrJones does have a correct conclusion, just not the correct reason.
- xongsmith