Hi Hermione,

i think it was an episode of "Secrets of Lost empires" where the reference to palm trunks being used to raise the water was traslated into a form of Archimedes Screw.

I seem to remember it making a certain sort of sense!

Pete

God is our guide! from field, from wave, From plough, from anvil, and from loom; We come, our country's rights to save, And speak a tyrant faction's doom: We raise the watch-word liberty; We will, we will,we will be free!