Still a better idea for a solar cooker: why not 3 sides instead of 4? Then you've got the natural strength of the triangle holding the pieces together. Velcro them together at each end and maybe one or two points along their length. Instead of glass to hold in the heat, just use a plastic oven-safe bag to cook the food in. Ultra-light and should be reusable.
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last updated 2013-01-10 21:09:59. served from tektonic.jcomeau.com