Newton's cradle

The model demonstrates the physical law of action and reaction. 

On the metal frame in succession are hanging balls (9 pcs) of the same weight and diameter (about 7 cm) each attached to the frame on two points (Bifilar curtain). If we get a ball far enough to all others and then release it, the last balls starting to bounce alternately. When we use two balls, at the end the two balls will be reflected.

Material: steel, plastic

Dimensions (cm): 90 x 80 x 60

21IQ-0017