PURPOSE: To convert anthropo-radiation energy into direct mechanical rotation, by rotating an impeller consisting of several blades by dint of anthropo-radiation force, though it is hard to rotate with mere radiation out of surroundings inside a room.

CONSTITUTION: A cap 7 is shaped in a form just as having an umbrellas half opened. This cap and fins 8 and 9 are all made up of a light material. In this connection, these fins 8 and 9 and a vent hole 10 are all omissible but it is better they are because rotation is easy to be done for anthropo-radiation. The cap 7 is one that blades are symmetrically set up in succession, and in case of a cap, an air flow enters inside the cap whereby energy is accumulated therein so that this accumulated effect is immediately brought on the rotation. Each of vent holes 10, 20 and 15 works for energy exchange inside and outside the cap.