A compilation of references, information and expertise. Discover key dates, legendary timepieces, a glossary of watchmaking terms, museums, and the watchmakers who helped shape the history of time measurement.
Danish astronomer. Protégé of the king of Denmark Frederick II then of the Holy Roman Emperor Rudolf II in Prague. Author of a theory of the movement of the planets, which compromised between the theses of Ptolemy and Copernicus: the Sun turns around the unmoving Earth and the...