Our Newton Kinetic Cradle Balance Ball Desk Decoration is an incredible contraption and a lesson in basic physics. Once you give it a little push, the balance balls will spin and swing like a rhythmic metronome. The Newton kinetic cradle is a classic desk toy which demonstrates conservation of momentum and energy via a series of swinging spheres. It can be put on the desk of your office and home to make great fun in your life. What is more, if you have trouble in sleeping, the "cradle" will keep you accompanied to a sweet dream. Your best choice!

Features

• An incredible contraption invented in 1960
• Composed of metal balance balls in same weight
• Once you give it a little push, the balance balls will spin and swing like a rhythmic metronome
• A classic desk toy which demonstrates conservation of momentum and energy via a series of swinging spheres
• It can be put on the desk of your office and home to make great fun in your life
• If you have trouble in sleeping, the "cradle" will keep you accompanied to a sweet dream

Specifications

Package Includes

• 1 x Balance Balls