the.com/rotation
the planet's daily spin nobody feels yet everyone obeys, blasting you sideways at jet speed
means The act of turning around a central point or axis, or a regular cycle in which things take turns or recur in sequence.
from From Latin rotare, 'to turn in a circle,' built on rota, 'wheel' — the same root that spins beneath 'rotary,' 'rotor,' and even 'round.' The noun rotatio described a wheeling motion, and English borrowed it to name everything from the Earth's daily turn to crop fields cycling through their seasons.
- silent speed
- Equator spins at roughly 1,000 mph constantly
- slowing down
- Days lengthen about 1.7 milliseconds per century
- day one
- Early Earth days lasted only about six hours
- leap second
- Clocks get adjusted to match Earth's drift
- sideways gravity
- Spin makes the planet bulge fatter at equator
for instance
earth's rotation — completes one full turn every 23 hours 56 minutes 4 seconds
uranus rotation — rotates on its side at 98 degrees axial tilt, takes 17 hours per rotation