History of Poland during the Jagiellonian dynasty major towns. Polish science reached its culmination in the first half of the 16th century, in which the medieval point of view was criticized and more rational explanations were formulated. Copernicus' "De revolutionibus orbium coelestium", published in Nuremberg in 1543, shook up the traditional value system extended into an understanding of the physical universe, doing away with its Christianity-adopted Ptolemaic anthropocentric model and setting free the explosion of scientific inquiry. Generally the prominent scientists of the period resided in many different regions of the country, and increasingly, the majority were of urban, rather than noble origin. Nicolaus Copernicus, a son
History of the center of the Universe the Sun" from the centre of gravity of the solar system. For Newton, it was not precisely the centre of the Sun or any other body that could be considered at rest, but rather "the common centre of gravity of the Earth, the Sun and all the Planets is to be esteem'd the Centre of the World", and this centre of gravity "either is at rest or moves uniformly forward in a right line" (Newton adopted the "at rest" alternative in view of common consent that the centre, wherever it was, was at rest). Before the 1920s, it was generally