Newtonian Demostrator
The classic Momentum demonstration
See in graphic form, the results of momentum conservation in elastic collosions. Five nickel-plated steel balls are suspended in a sturdy walnut frame. Measures 23×18×23cm
牛頓動量手恆示範裝置
上圖為一動量守恆彈性碰撞之情形。五個鍍鎳剛球吊在一堅固之胡桃木架
上。長、寬、高為23公分、18公分、23公分。