fischertechnik 536621, Toy marble run & balls (set), 7 yr(s)

The Dynamic L2 set guarantees even more fun with its action models and three 180° curves. The four high-speed curves with raised side edge let the balls roll at full speed through the curve! The balls simply race through the mechanical cross-over into various tracks. They just fly through the cross-over toward the rotary funnel or over the teeter-totter which releases a ball at the stopping point. The 180° curve lets young architects change the direction of the ball in a tiny space. After passing through the looping and other obstacles, the ball finally arrives at the elevator waiting point. The balls are then brought back up to the top again by the elevator which is operated by an XS motor. The three different action courses offer unlimited fun on the ball obstacle course. The four instructional experiment models also unobtrusively explain the effects of the various physical phenomena (acceleration, mass inertia, the balance of forces, the law of conserving energy, the principle of linear momentum, and the laws of motion).