I saw something interesting on the History Channel last night when I should have been getting to sleep. I will ramble about it for a little while. It was a show about Egypt. Well, kind of. It showed a group of American scholars and researchers who were working on the idea that the movement of heavy stones - pyramids, obelisk, etc - was done in large part by using the wind. They (the Americans) were able to move and set things using 25mph winds in a very short time. I had never heard of this theory but think it makes sense. It's takes a lot less energy and time when you let nature do the work. With wind power, friction can reduced considerably too. The overall conclusion with the program is that it is possible that Egypt was built with wind but it is going to be really hard to prove it for sure. There isn't any record (to our knowledge) about how these massive structures were built. A lot of the work is guess work and there is a lot of reverse engineering (I think that's what it is called). Anyway, it is when one starts with modern materials (nylon and processed metals) and works backwards to materials that were available in ancient time (wood, linen, and hemp ropes) which inevitably don't work as well as modern materials. All in all, it was interesting and kept me awake until the show ended.