Learning by body action: A virtual environment for refraction of light

A simple view control mechanism is developed and applied to a virtual learning environment for the refraction of light. The view control function is linked to body movement. A learner's observing position and direction are concurrently chased and then the visual information of an observed object is displayed on a head mounted display. The behavior of light is observable in the environment by means of body action freely and naturally. Some experiments suggest that the virtual experiences in the environment will be useful in the intuitive understandings of the refraction of light.