An independent theoretical physicist, for decades he has investigated fundamental questions concerning the nature of space, time and motion. He was formerly Visiting Professor of Physics at Oxford and is the author of three books(The Discovery of Dynamics, The end of time. The coming physical revolution e Janus point. A new theory of time, the latter two published in Italy by Einaudi) and of numerous scientific articles published in the most prestigious journals. He is also featured in several videos on YouTube.