Newton's Cradle, a desk toy used to demonstrate physics principles like conservation of momentum and energy.
Features: It consists of multiple steel balls suspended by strings from a frame with a decorative base.
Purpose: Serves as an educational toy, a science gadget, or a decorative item for home or office desks.
Function: When one ball is lifted and released, it strikes the stationary balls, transferring its energy through the rest of the balls and causing the last ball to swing out.