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Ioan. Baptistae Portae neap. De refractione optices parte, libri nouem (1593)

Porta, Giambattista della, approximately 1535-1615 · Neapoli : Ex officina Horatij Saluiani : Apud Io. Iacobum Carlinum, & Antonium Pacem · leaf 138

An illustration from Ioan. Baptistae Portae neap. De refractione optices parte, libri nouem, 1593, leaf 138
i yi 10. BAPTISTAE PORTAE 1 &us V ad O, oblique relabitur ad G, extenfaq; linea ad C, oc¬ curret catheto exD, in C3 connexa BG, aqualis eft AB, vide¬ bitur ergo sequalis B C, ipfi AB. r Spbtfra hemifphcerio femper mitis fpe flabitur • Vrop. XXL EV C L I D E S contrarium fenti t . Ait enim fph^ra… … Spharrf dimetiens B C, centrum D, & fupra tria punda B D C oriantur tres perpendicu!ares,diriganturq; in redum, quarum terminis defignetur linea F K L»ipfo dimetienti aeque remota , loceturq; alter oculus in F, alter in L. Quia diametro eorum diftantia par eft,fi manente axe D, circumferatur…

Optics

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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