The Earth's rotation does, like a basketball spinning
on the tip of Kobe Bryant's finger.
Since the Earth is somewhat bigger than a basketball,
it takes almost 24 hours to do one complete spin.
The sun can only light up 50% of the Earth at a time.
As the Earth spins, it moves you and me in and out
of the lighted half. Any time we're not in the lighted
half, we describe our situation as a "night" status.
