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Perspectiua horaria, siue, De horographia gnomonica tum theoretica, tum practica libri quatuor ... (1648)

Maignan, Emmanuel, 1601-1676 · Romae : Typis & expenses Philippi Rubei · leaf 220

An illustration from Perspectiua horaria, siue, De horographia gnomonica tum theoretica, tum practica libri quatuor ..., 1648, leaf 220
Optice Horaria. _j, xyx Demonstratio : Sicut propofttio ha:c, vigefima; pnecedend valde affinis eft, ita cum ea demonftradonem habet fere eandem : cum enim eadem vtrique figu¬ ra feruiat, foia pro difcrimine intercedit mutatio fitus itaut , quod illic … Horizontale eft,hic habita ratione plani, Verticale fit,& e contra ffiquidem recta E F iam Horizontalis eft , cum antea Verticalis effiet , nimirum fec- tio communis plani horologij , & circuli Verticalis primarij ; ita recta H G M , quo in dicta prop. erat communis fectio Horizontis, & Meridiani,…

Sundials -- Early works to 1800 · Horology -- Early works to 1800 · Perspective -- Early works to 1800 · Horology · Perspective · Sundials

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