How does wind chill work / Why does wind make stuff cold?
It is to do with thermodynamics and contact time. The greater the temperature difference between 2 objects the faster the temperature of the objects will change as they try to balance to become in equilibrium (its logarithmic). E.g. if you have a glass of hot water in a room what happens is the cooler room temperature reduces the temperature of the glass of water and the glass of water actually raises the temperature of the room (only slightly). In still air, the air local to the glass of water will be a local hot spot i.e. slightly warmer than the room thus reducing the difference between the glass and surrounding air (ignoring the effects of convection). When you add a breeze to the equation (wind chill) you replace the local hot spot with new air. This keeps the temperature difference between the air and object towards the maximum. Because the temperature difference is kept large the rate of change of temperature of the object remains fast. Things will actualy cool down but only to
