Academy Models 18174 Da Vinci Rolling Ball Timer Plastic Model Kit

Academy Models 18174 Da Vinci Rolling Ball Timer Plastic Model Kit

IThe Da Vinci Rolling Ball Timer kit was inspired by a sketch of an escapement mechanism drawn by Leonardo Da Vinci. Using the laws of motion and the concepts of gravity and kinetics to measure the passage of time. The mechanism employs precision gears to power a moving platform which in turn propels a rolling ball.