Academician Veljko Milković is constantly working on new applications and perfecting his most prominent invention: the two-stage mechanical oscillator. This invention has become the subject of numerous scientific research papers published around the planet, and the interest in studying its application has not abated for 20 years in scientific circles. In the latest video, Milković presents a new, fast and improved version of the two-stage mechanical oscillator. In this improved version, certain problems that occur with the basic version of the invention have been eliminated.