"Starlord" wrote in message
...
When I'm out set up for Sidewalk Astronomy and someone asks why we see the
same side all the time, I use the simple way of telling them and then they
are happy.

"The moon takes about 29 days to go around the Earth, at the same time
it's spinging on it's own at a rate of One Turn every 29 days. Thus the
two go together so it shows the same face to us all the time.


I used a flashlight before. Stood the person up, made them the earth. I then
acted as the moon, on which we mounted the flashlight pointed earth. I then
revolved around them with varying rotational speeds to demonstrate the same
side. That usually works.

BV.
www.time2conserve.com