mathematics 99 geometry 80 history 79 astronomy 49 physiology 41 classical mechanics 35 physics 32 more ... arithmetic 27 algebra 25 botany 25 mathematical analysis 22 geography 21 calculus of variations 21 optics 20 architecture 19 křivky (geometrie) 19 infinitezimální počet 18 social geography 18 anthropology 17 astrology 17 differential calculus 17 natural sciences 17 zoology 17 historical sources 16 czech history 16 geodesy 15 positional astronomy 15 papers 14 mechanika tekutin 14 analytical geometry 13 less ...