Newtons Cradle, named after Sir Isaac Newton, is a device that demonstrates conservation of momentum and energy using a series of swinging spheres.

Every action has an equal and opposite reaction.

When one sphere at the end is lifted and released, it strikes the stationary spheres, transmitting a force through the stationary

spheres that pushes the last .

The base is approx 18cm x 12cm and the cradle is 17cm high including the base.

THIS IS NOT A TOY!