My favorite is a variation of #7: Earth rotation period is actually 23h 56m, not 24 hours https://en.wikipedia.org/wiki/Earth%27s_rotation https://en.wikipedia.

My favorite is a variation of #7: Earth rotation period is actually 23h 56m, not 24 hours https://en.wikipedia.org/wiki/Earth%27s_rotation https://en.wikipedia.org/wiki/Earth%27s_rotation