Newton's Cradle makes a great desktop gift.
Unique exclusive contemporary design
These swinging balls will keep you occupied for hours at work.
Newton's Cradle is a clever device that not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.
Contemporary design complements any office or home decor.
You can purchase this on Amazon.
I received complimentary product.
Cassandra's Review- Great for older kids, this is a cool product but kind of cheaply made. It does work nicely.