Jammer Wrote:
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> Whoa Nellie!
>
> What you are speaking of is a system of locks to
> raise shipping such as at the Panama Canal.
>
>
>
> Any documentation you have of this would thrill
> maritime historians, who seem to have hung up on
> the Chinese inventing them in the 10th century CE.
>
>
> Your theory would push their use back 3,500
> years.
>
> Jammer

These are an exceedingly simple device. A lock
is far simpler than the wheel and could have been
used in thousands of applications long before the
Egyptians used them (if they used them). The main
problem which prohibits their use is that you
can only go downhill unless you have a water sup-
ply at the top of the hill. Of course there are
hosts of other problems if you're trying to move
very massive objects but these were not beyond the
Egyptians.

They were certainly capable of containing and stop-
ping water.


____________
Man fears the pyramid, time fears man.