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How do insulators work?

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Since insulators prevent the flow of heat in either direction, refrigerators are commonly constructed with double walls separated by an air space (air being a poor conductor) and lined with some insulating material.

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Get more facts and information about insulation . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

Similar questions: Why does an insulator work? How does insulation work? How does an insulator keep heat in? [ Hide these questions ]

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