Named after brilliant physicist Sir Isaac Newton, this mesmerizing toy demonstrates (at the very least) important principles of physics concerning conservation of energy. Swing one end ball, two end balls or three balls—the amazing, optical-illusion-ish results will keep kids entranced for hours, imagining the myriad other combinations that can be tried. For ages 8 and up.
Trustpilot
1 day ago
2 months ago
