91.5 Krcc's Looking Up

This week on Looking Up Bruce Bookout sets his sights on the Earth's precession. During a recent 80’s musical flashback, I wondered about a fundamental part of our movement in the universe. It is well understood that our spherical earth spins on its axis providing the basic unit of time defined as a day. That spin establishes an axis of rotation that we further define by having poles on the surface of the earth; in the north and south. And like a top spinning in space, the Earth wobbles, or more precisely “precesses” .