Fix'd in Heaven's Air

We live on a whirling ball of rock thousands of kilometers across. As it happens, most balls of rock that size in the Universe are whirling, so it's not really weird. It just seems weird. The reason it seems weird is that the rotation of the Earth is pretty slow when it comes to things we can perceive; it's not like being on an amusement ride with a small radius and rapid spin. We're pinned to the surface of a planet, and it's huge. We've evolved over a zillion years to think the Earth is fixed,...