The distance from Jacksonville, Florida to Los Angeles, California is about 3888 km. The earth’s circumference is about 40 000 km (source), so the US spans about 10% of that, roughly :)
The distance from Jacksonville, Florida to Los Angeles, California is about 3888 km. The earth’s circumference is about 40 000 km (source), so the US spans about 10% of that, roughly :)
That’s not what I meant. If the line isn’t a straight as drawn on a sphere, the distance will be longer than it would be when drawn on that sphere. Especially a line like this that follows roads, a squiggly line, can end up much longer than a straight line would be.
When a straight line is drawn on a mercator projection map, and we then turn that projection back into a sphere, the line would no longer be straight. With the only exception being exactly in the north - south direction, since that is preserved with mercator.
My point wasn’t that the line is shorter, like you suggest if the line were to tunnel below the surface. Exactly the opposite, the line would appear longer than it actually is, since it wouldn’t be straight if we were to look at that line on a sphere.