Uranium glass is one of the central elements in Rony’s work. It appears both in his art work as well as in his product design. The uranium reacts to ultraviolet radiation, and the sculptures literally glow in dark spaces, creating a magical effect. Uranium glass has been produced in Bohemia since the Baroque period, however, due to the difficult fabrication process, hardly anyone works with it in this way anymore. This connection to the Baroque is important for the author’s way of thinking and the context of his work.