To contribute to prevention of global warming even if it is a little by creating a rotary device capable of maintaining continuous rotation without external power and applying the same to various energy devices.

The rotary machine capable of keeping always an imbalance condition (a condition where a number of gravity-drop weights is always larger than a number of rising weights) is designed and manufactured, and then, the same is connected to a motor or the like to complete an energy device. Since heat generation and damage of an axle of a wheel due to friction are concerned based on a law of thermodynamics, restriction of use " Don't use continuously more than - hours, or the like" is forcibly provided. Consequently, the machine can be used for considerably long period of time. A point is to effectively use the long period of time and the device is commercialized under a slogan of the point. The machine is applied to various energy device form small to large to supply clean energy and to contribute prevention of global warming.