mathematics 104 geometry 81 astronomy 66 history 60 physics 45 classical mechanics 43 physiology 40 more ... botany 29 arithmetic 27 geography 26 algebra 24 optics 24 natural sciences 22 chemistry 20 celestial mechanics 20 křivky (geometrie) 18 positional astronomy 17 zoology 17 historical sources 16 mechanika tekutin 16 trigonometrie 16 czech history 16 astrology 15 analytical geometry 14 papers 14 geodesy 13 Latin 13 motion 13 planimetry 12 algebraic geometry 11 less ...