To provide a revolution machine using gravity to continuously turn a turntable for obtaining rotation power therefrom by converting a gravity acting direction into the horizontal for acting on the turntable.

A weight 3 is descendibly supported by the horizontal turntable 2 on an upper side. Gravity acting on the weight 3 is converted into a horizontal force by a member 5 converting a force by 90° and transmitted to a receiving part 20 of the horizontal turntable 4 on a lower side for turning the turntable 4, then the rotation is transmitted to the turntable 2 on the upper side by a transmitting means 6 and the turntable 2 on the upper side is turnably turned with the turntable 4 on the lower side to continuously turn the turntable 4 on the lower side of obtaining rotation power.