To provide a device for extracting a large rotational energy from the gravity, by only applying vertical motions through utilization of a small energy of a motor, etc., being contrary to the theory of perpetual motion using gravity which was vigorously studied around the 16th century, resulting in the conclusion that the perpetual motion is absolutely not possible with the announcement of Newton's laws of motion in 17th century.

In recent years, a generator having a high efficiency is developed due to the use of wind power generation, etc.; also a motor having high efficiency is developed. The device, according to the invention, is based on a generator and motor, in which a turntable 3 with a shaft generator 4 used as a weight is installed on the turntable shaft 5 attached to the center shaft 6; if a rotary table metal piece 11 at the end of the rotary table 2 whereto table stays 8 and rotary table stays 10 are installed with a certain angle provided by a stay shaft 9 is put in vertical motions by the motor 12, the turntable 3 makes a rotational motion round the central shaft 6; and this is taken out in the form of electrical energy by the shaft generator 4 and central generator 7.