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Insulation

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Revision as of 23:35, April 7, 2014 by 173.78.192.205 (Talk)

styrofoam was used prior to understanding its role in atmospheric ozone depletion, it was considered unreliable as an insulator as it sometimes melted within the solar box cooker wall resulting in a poorly functioning oven. Where styrofoam was successful, the inner oven wall was relatively thick and sturdy so reduced amounts of heat penetrated as far as the insulation.

Crumpled newspaper ha

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