arius definiam. Attamen quando , ad 3 populatum meum, caufam inueftigabo squalitatis angulorum reHexionis,& inciden¬ tia;, eamque ephyficis ipfius lucis conditionibus conabor eruere, tunc in¬ quam, radij figuram, vel fane latitudinem maxime attendam ('falteiru, quoad incidendam obliquam ) quia tunc… … 3 Puntlum incidentia efl m fpeculo punctum , quod radius incidens ferit , d quo etiam vicijfim repo-cutiente refleEfitur : quale efl B in medio plani fpe- culi V X. 4 Angulus incidentia efl ille, quo ad fpeculum , fu ad planum in punElo inci¬ dentis contingens, inclinatur linea incidentia ; qualis…
Sundials -- Early works to 1800 · Horology -- Early works to 1800 · Perspective -- Early works to 1800 · Horology · Perspective · Sundials
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