In an effort to help Tanner with an extra credit assignment, I ended up drawing blue prints for an Archimedean Screw. I made one of these for a history class a couple years ago. For those of you interested in making your own (because we know this is going to be your top weekend priority), here are some basic instructions:
Get a two foot dowel that is one inch in diameter. Draw a line down each side and mark it every inch along the dowel. Tack the tubing at every other mark wrapping it around the tube. You'll need some way to turn the tube when its all done, so you could put a long screw into each end, one for it to pivot on and one for the top of it to turn it from. In the picture, I have it going through a hole in a 2x4, but you could support it some other way. It just has to be tilted enough so that it can carry water. When I did it, I nailed the tubing on with small nails, but the nails got a little in the way with the water going up the tube. You can get tubing and the other supplies at Home Depot.
Good luck,
Aaron
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