Flywheel Fun: a precision machined kinetic desk toy (with helical motion illusion) that will spin for 30 minutes! A massive cylindrical ring of brass is mounted on quality bearings- the combination of the ring’s large moment of inertia with the low friction contacts allows for amazingly long spin times. The spiral design converts rotational motion to translational motion for a nice visual effect. ➡️ Follow the link in my profile for info on where to get this device and other amazing items featur

Kinetic energy: Newton vs. Einstein | Who's right?

Spiranetics Kinetic Toy: a rotor rolls while magnetically connected to a helical track in this toy sold by The Nature Company in the 1990s. The clever geometry allows , with the right timing, the rotor speed can be ramped up by just rotating the helix in place- or to get it to higher rotation speeds the helix can come out of the base as demonstrated. This device is a fancy version of the Whee-Lo type toys- with physics of angular momentum, magnets, and combinations of rotational and translationa

Kinetic toy - Future Blink