Why Does Metal Feel Colder Than Wood?

When two objects sit in the same room, they eventually reach the same temperature — so a metal spoon and a wooden spoon on the same table are actually equally cold (or warm). Yet the metal feels much colder to the touch. The reason is that our skin does not have thermometers that measure absolute temperature; instead, our nerve endings detect the rate at which heat flows into or out of our skin. Metal is an excellent thermal conductor, so when you touch it, it rapidly draws heat away from your warm hand. This fast heat loss triggers a strong "cold" sensation. Wood, by contrast, is a poor conductor (a good insulator), so it draws heat away slowly, and your skin stays warmer, feeling less cold. The same principle works in reverse: on a hot day, a metal object in the sun feels much hotter than a wooden one because it rapidly transfers heat into your skin. This is why we use wooden or plastic handles on pots and metal for radiators and heat sinks.