eli5 Why are some surfaces– like metal — colder than others?

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imagine im in a kitchen. if i touch a paper plate, it feels lukewarm. if i touch a knife, it feels kinda cold. why do they feel like different temperatures?

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18 Answers

Anonymous 0 Comments

Your body can’t actually feel the temperature of things.

What you feel is heat being transferred in or out.

This is arguably more important since you don’t care how warm or cold the environment is but how quickly you are losing heat to the world around you or overheat.

Water feels colder than air and windy air can feel colder than still one, because it will rob you of your body heat more quickly and that is vital information to have for your survival.

A wooden bench will feel less hot or cold than a metal one despite being the same temperature because metal stores and transfers heat energy easier than wood.

Evolution has given us not temp sensors but heat sensors.

We feel heat not temperature.

Often that works out the same, but some materials are very different from others.

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