The motion of this 5-ball cradle is the most addicting way to demonstrate Newton's law of conservation of momentum and energy,
which makes it a great teaching tool, in addition to being fun to watch. And we've equipped each frosted glass sphere with LED,
it's even more amazing. Lights react based on their position. Start a kinetic chain reaction with one ball and see how the others
change color in response. One from each end, set the LED to a single color and watch the light fade as they swing back and forth.
Item Type: Night Light
Light Source: LED
Material: Plastic+ Frosted Glass
Batteries: 6 X 1.5V AA alkaline batteries (not included)
See the laws of conservation of mass and energy expressed in color
Programmed with three lighting modes - flash, fade, color cycle
Bright, multicolor LED in each sphere
1 x Kinetic Light Newton's Cradle Balance Ball (Battery is not included)
you can track your packages after an order has shipped.