ypslzy Marble machine - Physics

【High Quality Material & Multipurpose】Rolling Ball Perpetual Marble Machine is made of high quality plastic and the wire is made from stainless steel, durable, long-lasting. It is a classic desktop accessory and the art of movement, Use it to decorate your office space, show some personality and express your love for science and physics. Review: Las leyes de la física que dicen que el movimiento perpetuo NO existe, son desafiadas por este extraordinario juguete, muy bien diseñado. Review: Like a rail gun - When the marble reaches the bottom of the machine it uses some kind of energy to propel the marble upwards. It's pretty intense how much it accelerates the marble, sort of like a rail gun. It makes a big clacking sound when the marble lands back at the top. I think of it sort of like those bamboo shoots that tilt down down when full of water. Personally I found it kind of annoying after 30 minutes but others might enjoy it. At some point the machine stopped looping cause the marble was sitting in the top funnel dish, but not centering. The machine has to be leveled pretty good for it to keep looping.