O.K., Glad to hear it. We are kind of up to our eyeballs right now, between our stirling reseach and our tessla turbine research, and our algae research, but the premise is simple enough. Plus hopefully renewable john will chime in, since he commented that it is a similar system to something that he has seen. First of all, the article itself, is two years old, so there may be more info available. Here's a few thoughts in the mean time. The starting point is the parabolic reflector itself, and the material to construct said from. My first impulse would be to use thin aluminum sheet. It is light weight, non corrosive, easily formed, and can be easily polished to a near mirror finish. Others have mentioned plywood or sheetmetal with a mylar film. One must determine shape of a parabola, a grade school math problem, yet many may not recall it. I have a scanner, and I will upload the layout later. At the same time, I will load a shematic of the mechical side.
