Perpetual Motion Simulator: as recently seen on @therealadamsavage and recently profiled by @stevemouldscience, back in 2021 this piece of amazing kinetic art was shared on @physicsfun- and a couple weeks after the internet was flooded with versions based on a really bad design with a motor and a kick wheel for a fraction of cost of the one shown here. Of course this marble machine device does not break any laws of thermodynamics- but instead the base contains a power source and very clever mech

The most amazing physics simulations right now (compilation)