The first video is the complete demonstration of our Rube Goldberg in action and the second video is the breakdown of how it worked.
Simple machines Used: Screw, Inclined Plane, and Lever.
Energy Used: Sound (Coffee Machine in use), Mechanical (The fan), and Thermal (The heat from the coffee machine).
Energy Transformations Used: Gravitational Energy to Electrical Energy (The gravity of the books falling to turn on the coffee machine which is electrical), Gravitational Energy to Mechanical Energy (Gravity rolls the ball down the incline plane to go through the fan which is mechanical) Electrical Energy to Thermal Energy (The electricity powering the coffee machine which heats up the drinkable substance by using thermal energy).