the.com/rotation
the planet's daily spin nobody feels yet everyone obeys, blasting you sideways at jet speed
silent speedEquator spins at roughly 1,000 mph constantly
slowing downDays lengthen about 1.7 milliseconds per century
day oneEarly Earth days lasted only about six hours
leap secondClocks get adjusted to match Earth's drift
sideways gravitySpin makes the planet bulge fatter at equator