The human body feels whether or not heat is entering or leaving its tissues. All materials have something called a “specific heat” which is the amount of heat that must be added to a given amount of the material in order to raise its temperature by some amount. Metals have very low specific heats, meaning that they suck up heat rapidly. Metals feel colder at the same temperature because they are very thermally conductive, and sap the heat from your tissues more quickly than other materials. This is why they feel ‘colder’ at a given temperature than most other things.
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