Catoptrice Horaria^. 4<5S Propofitio LXXXV. 1» omni reflexione cylindrica , axis reflexionis , intra_> fpeculum produBus ,per axem fpeculi incedit ad eundem redus . Sic fpeculi cylindrici A B punctum quodcunque E, in quod radius ca- dat vndecunque , & fit fpeculi axis C D , axis verb reflexionis in… … planum H I perpendicularem . Et quia idem EM, fi intra cylindrum versus N producatur ; erit in plano G C; vtpote com¬ munis ledio illius &iuperficiei reflexionis pariter produdx ; conlequenter tranfibit fimul cum eodem G C per axem cylindri C D.& quidem ad eun¬ dem redus ; cum ex demonflracis ,…
Sundials -- Early works to 1800 · Horology -- Early works to 1800 · Perspective -- Early works to 1800 · Horology · Perspective · Sundials
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-122-336.webp)
