{"product_id":"newtons-pendulum-cradle-steel-ball-conservation-of-momentum-desk-toy","title":"Newton's Pendulum Cradle - Steel Ball Conservation of Momentum Desk Toy","description":"\u003cp\u003eThe most iconic physics demonstration ever made. The \u003cstrong\u003eNewton's Pendulum Cradle\u003c\/strong\u003e demonstrates conservation of momentum and energy through the endless click-clack of steel balls — a hypnotic, meditative desk toy that never stops being fascinating.\u003c\/p\u003e\u003cp\u003eLift one ball, release it, and watch it transfer its momentum through the chain of stationary balls, launching the last one upward with identical velocity. Lift two, and two launch. The physics is precise, elegant, and endlessly repeatable.\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eNewton's Cradle is a simultaneous demonstration of conservation of momentum (p = mv) and conservation of kinetic energy (KE = ½mv²). In a perfectly elastic collision, both are conserved simultaneously — the only mathematically allowed solution is that the same number of balls that enter must exit at the other end with the same speed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-polish stainless steel balls\u003c\/li\u003e\n\u003cli\u003eChrome-plated steel frame\u003c\/li\u003e\n\u003cli\u003eWeighted base for stability\u003c\/li\u003e\n\u003cli\u003eNylon suspension strings for frictionless swing\u003c\/li\u003e\n\u003cli\u003eSuitable for desk, shelf, or classroom display\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eFulfilled via CJ Dropshipping. Ships worldwide in 7-20 business days.\u003c\/em\u003e\u003c\/p\u003e","brand":"Golden Physics Project","offers":[{"title":"Default Title","offer_id":55123172196644,"sku":"GPP-CJ-70314240","price":50.99,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/shop.goldenphysics.org\/products\/newtons-pendulum-cradle-steel-ball-conservation-of-momentum-desk-toy","provider":"Golden Physics Project","version":"1.0","type":"link"}