Most of us have seen a Newton’s Cradle in action in physics classes. It is a device that demonstrates conservation of momentum and energy. Thanks to the Newton’s Cradle Fridge Magnet, you can bring one of these toys home. It attaches to your fridge, filing cabinet, or locker easily and gives you something to stare at when you are bored. It measures 6 1/4″ wide, 8″ tall, and under 5″ deep. It weighs 8 oz.
The Newton’s Cradle Fridge Magnet is a wonderful tool to teach your kids some physics or kill time. It sets you back $15.