Building Parabolic Solar Ovens?

Question

This is for a pre-cal project, we just finished a unit on graphing parabolas. Does anyone have any ideas/suggestions on how to make a simple parabolic solar oven using minimal materials (cardboard, foil...) Any information is appreciated.

Other people have asked this question and a lot of people have suggested http://solarcooking.org/, which I've already checked out. Other helpful sites would be appreciated. Thanks.

Answer 1

Wikipedia has a big list of sites at the bottom of this page:

http://en.wikipedia.org/wiki/Solar_oven