The Earth is not a sphere though, it's an approximate ellipsoid :). Can't get pedantic without being pedantic about it ;)

It's actually an oblate spheroid. It's surface is an approximate ellipsoid, though.

well, as long as we're being nitpicky, you want "its surface" (the surface belonging to it), not "it's surface" (it is surface).

You're right. I can't believe I missed that. The error was the phone's, but I didn't catch it.

I double checked all the apostrophes this time.

But I’ll bet the Earth is closer to a sphere than this thing.

Yes, its oblateness is on the order of 40 miles difference between diameter at the poles and the equator. Not very oblate, but no perfect sphere.

Probably closer to a sphere than this! "It will have a diameter of 120 metres, the same as the London Eye, and be 96 metres tall"

Isn't the reduced height because the bottom is flattened/sunk into the ground?

Real spheres don't exist

But do the set of all the world's spheres includes itself?