A parabolic solar cooker focuses solar energy into a concentrated area using a reflective parabolic shape to heat and cook objects. The authors created their solar cooker out of cardboard, mylar, bolts, and a copper tube, and it reached temperatures of 290 degrees. While it was an educational experience, they note it could have been more effective if they spent more time on the mylar reflector, and warn others may burn themselves if touching the hot copper tube.