Newton's Cradle Balance Balls

A classic Newton's cradle in polished steel, demonstrating conservation of momentum in a form that also works as a desk object.

Lift one ball and one leaves the far end; lift two and two swing. It is a genuinely useful teaching demonstration because the result is counter-intuitive until the maths is explained — which is why these still sit in physics classrooms.

Key features

• Polished steel balls on a stable frame
• Demonstrates momentum and energy conservation
• Four frame designs
• Desk-sized

Good for

Physics teaching, office desks, studies, gifts and shelf styling.