In case you had any lingering doubts, here is some masterful cosmological/geological/geometrical instruction on our planet and its spherical — but not perfectly spherical — tendencies, courtesy of the ever-capable Henry Reich (better known as the creator, animator and narrator of MinutePhysics). Some great, if not immediately obvious, insights here.

Saddle up, kiddos — let's go rile up some flat-Earthers.

[MinutePhysics]