is there a reason why the moon takes 28 days to rotate on its axis and orbit the earth..coincidence surely no

Answer 1

Put "Tidal locking" into google.

http://en.wikipedia.org/wiki/Tidal_drag

Answer 2

No, but it is a coincidence that the moon being the size it is and the distance from earth that it is, appears to us as EXACTLY the same size as the sun is, being how far away it is, and what size it is. So when there's an eclipse the moon exactly covers up the sun. Coincidence? Or God giving us a clue.

Answer 3

The moon is a small planetary body that orbits the larger Earth, which has more gravity than the moon. In a way it pulls on the moon on its orbit. That's why you also see a full moon (I think) at the end of each month.

Answer 4

The earth's gravitational pull is strong enough to keep the same face of the moon turned towards the earth, always.

Answer 5

Not a coincidence. The moon and the earth are in synchronisation. It's called 'tidal locking'.

http://csep10.phys.utk.edu/astr161/lect/time/moonorbit.html

Answer 6

So far, this is the only satellite that has a rotation approximately the same as it's revolution. Strange, but, astrophysicists haven't found an unnatural reason for it. Yet.

Answer 7

the moon doesn't rotate. Read a reference book!

Answer 8

Gravity and tidal forces over time. It will continue to slow down, as will the earth (gravity and tidal forces of the sun).

Answer 9

r u seriously thick. hav u never done science in school

Answer 10

not to be ugly...but it must be a gravity ocean wave thing