Learning /
Why metal feels colder than wood
A small everyday sensation opens up a bigger question about heat.
A metal spoon and a wooden spoon can sit in the same room overnight and reach the same temperature. Put a warm hand on each, though, and the metal usually feels colder.
Metal transfers heat away from your skin faster. What you feel is partly the rate of heat transfer, rather than a direct measurement of the object's temperature.
The distinction is useful: temperature describes thermal state; heat is energy moving because of a temperature difference. Something familiar becomes more interesting when you ask what is actually happening.