Abstract: Disclosed is a rotating device including: a first gear part having a first gear; a second gear part coupled to the first gear and having a second gear that rotates relative to the first gear; a third gear part coupled to the second gear and having a third gear that rotates relative to the second gear; and first and second driving units for respectively providing rotational driving forces to first and second input gear parts which are two gear parts of the first to third gear parts to determine a rotational output of an output gear part which is the remaining gear part. At least one of the first and second driving units changes the rotational speed of at least one of the first and second input gear parts to change the rotational speed of the output gear part.

Abstract: A robot for virtual reality experience, in which a settling body for a user is moved in multidirectional according to operation states of first and second moving units and first and second crank motors. The settling body creates various moving directions according to the operation states of the first and second moving units and the first and second crank motors, and each magnitude of forces applied to each moving direction is changed, thereby forming the various waveforms.

Abstract: A robot for virtual reality experience, in which a settling body for a user is moved in multidirectional according to operation states of first and second moving units and first and second crank motors. The settling body creates various moving directions according to the operation states of the first and second moving units and the first and second crank motors, and each magnitude of forces applied to each moving direction is changed, thereby forming the various waveforms.