Well, I’m a professor of philosophy and art history, but from an early age, mathematics and physics were my hobby. In 1968 I started to experiment with levitation devices. It was during 1975 that I got the first affirmative results in the laboratories of "Tehnoloski fakultet" - University of Zagreb. At the time, though, I couldn’t explain the results, and I temporary stopped conducting my research. In 1982 I discovered the "double curved trajectory of a ring mass rotating in a gravitational field", and made calculations based on a hypothesis of gravifugal force that explained my experimental results. After I completed developing the theory I had no further theoretical or technological problems.