"Wal" wrote in message ...

According to a TV documentary last week the

moon is very slowly moving away from us.

Does it need to be accelerating to do that?

If that is the case were is acceleration coming from?


The Earth's rotation propels the tidal bulges raised
by the Moon so that they're slightly ahead of the
Earth-Moon line. The gravity of the nearest bulge
pulls the Moon ahead slightly more than the further
one retards it. So it's the tides that do the
dirty work.