Nakamura Ninja-Ball

This unit is made up of five urethane balls that become smaller from the bottom to the top in a specified rate 1:3, with the bottom ball being the largest. Such experiments as COLLISION and the LAW OF CONSERVATION of momentum can be performed when using this unit. By using the core rod, heighten the balls to approximately 1 meter vertically from the floor and then drop them.

As you will see, the impact caused by collision of the bottom ball with the next one is transmitted to the above balls, moving only the top ball off the floor by several meters, touching the ceiling.The dimensions of this unit are 200 x 85mm and it only weighs 200 grams, just the right size for that empty space in your classroom.


SPECIFICATIONS

*One extra top ball with flag is included.
*Material: Ball;Urethane Core rod and frame: Chrome-plated iron
*Dimensions: 200 x 85 mm
*Weight: 200g