People have said that it brings up warmer hot chocolate from the bottom of the mug, but why isn’t the entirety of the hot chocolate the same temperature?
In: Physics
Air currents cool off the surface of the drink. When you stir it, you integrate the cooler drink at the surface with the rest of the cup. Warmer liquid that wasn’t exposed at the bottom of the cup comes up to the surface when stirred and is similarly cooled by the air.
Latest Answers