Rolling ball timer, the da vinci rolling ball timer is developed from leonardo s sketchbook concepts of an escaping mecanism. The kit uses the principles of gravity and kinetics to measure the passage of time. It employs precision gears to power a platform in a see-saw pattern that propels a rolling ball. When complete, it exhibits concept relating to the laws of motion and delivers hours of entertainment.
Rolling ball timer, the da vinci rolling ball timer is developed from leonardo s sketchbook concepts of an escaping mecanism. The kit uses the principles
