p forsdick wrote in message
. uk...
Hello
This has prompted a question I have not worked out the answer but is
probably a very easy one and everybody else probably knows the answer.
If the moon goes round the earth once about 25 hours and is the main
effect
on the tides why do we get 2 high tides in 25 hours and not one
regards Paul
"n cook" wrote in message
...
According to a local old sea dog, there is a 50 year cycle to the height
of
tides superimposed on the usual new/full moon / sun distance, cyclic
variation.
If there is indeed such an influence , would any one know what it is -
earth's precession ?





Tidal effects not travelling at 1000 mph (1000 times 24 = earth
circumference) is probably something to do with that effect