Solar Hot Dog Cooker

Add a little fun and excitement to those outdoor picnics by using a solar hot dog cooker, which will cook your food to perfection.

Procedure: Drive nail into middle of 28-inch to 30-inch-long 2-by-8, 1/4-inch in from one edge. Then — using the nail as a pivot — swing and slide a framing square so that its corner moves precisely along the 2-by-8's opposite edge. Stop the square frequently as you move it along and, with a pencil, draw a series of overlapping lines along the square's other leg as shown. These overlapping lines will describe a perfect (for this solar hot dog cooker) parabolic curve.