Michał Tomczak (IA)
’De revolutionibus’ narratio secunda
The 550th anniversary of Mikołaj Kopernik's birth is a perfect opportunity to recall his opus magnum "De revolutionibus". In my talk I will present basic motivations of Kopernik which brought him to announce a new model of the Universe called nowadays: Copernican heliocentrism. I will describe also a long story of completing of "De revolutionibus". I will show that the discovery of Kopernik might be even more advanced than usually thought - his book contains all values needed to formulate the 3rd Kepler law! I will illustrate my talk by citations from "De revolutionibus".