Live~NRGY

Bearing and Distance Calculator With Maps.

…”The shape of the earth

The earth is not a true sphere but rather an oblate ellipsoid (sometimes called an oblate spheroid) with the poles being slightly flattened and the equatorial regions being slightly bulged out. The earth would be nearly spherical if it were stationary, but because it rotates, the centripetel force of its rotation causes the equatorial regions to bulge out.

The earth’s polar flattening is about 1 part in 298, resulting in an equatorial radius of 3963.191 miles (6378.137 km) and a polar radius of 3949.903 miles (6356.7523 km). The polar flattening is so slight that it would be hard to detect with the human eye alone, however, it does make a significant difference when calculating long distances on the surface of the earth.”…

BET YA DON’T KNOW ‘WHY’. NOPE OBVIOUS ANSWER IS NOT CORRECT.

:~)