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Why do metals feel colder than foams?

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Uploaded on Jan 23, 2012

This video shows a comparison of thermal conductivities of metals and foams. A thin metal sheet was placed on top of a foamcore board and was covered by a piece of paper (to ensure the same emissivity). The thumbs were used as identical heaters.

See also: http://www.youtube.com/watch?v=1lGsnn...

Visit http://energy.concord.org/ir for more.

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