Take two really smart Mechanical Engineers from the University of Florida, give them a luke warm beer and they come up with a brilliant idea. They used their knowledge of engineering, heat transfer and their love of cold beer to come up with the SpinChill.
They found that cooling a container of liquid in a tub of ice took much longer than if that container was constantly spinning. The reason for this has to do with heat transfer. If the container is just sitting in the ice the outside layer of the liquid cools and it insulates the inner liquid which slows down the overall cooling process. By spinning the container it allows the warm liquid in the center to reach the outer edge where it can be cooled instantly.