Explain why the blade of a knife feels cold to touch but wooden handle does not?

When you touch the blade of a knife, the heat from your skin is quickly transferred to the metal. This causes the molecules of the metal to vibrate more quickly, which in turn creates the sensation of cold. The wooden handle, on the other hand, does not conduct heat as well as metal. This means that the heat from your skin is not transferred to the wood as quickly, and so the handle does not feel as cold to the touch.

In addition, the blade of a knife is usually thinner than the handle, which means that there is less material to absorb the heat from your skin. This also contributes to the feeling of coldness.

Here are some additional factors that can affect how cold a knife blade feels to the touch:

* The temperature of the knife. A knife that is cold to the touch will feel even colder if it is placed in a cold environment.

* The humidity of the air. The more humid the air, the more heat your skin will lose to the air. This can make a knife blade feel even colder.

* Your own body temperature. If you have a low body temperature, your skin will be more sensitive to cold. This can make a knife blade feel colder than it actually is.

By understanding the factors that affect how cold a knife blade feels to the touch, you can better understand why it feels so cold when you first touch it.