Plurame- Quod fi plura fintmedia fuccedenria fibi fimili ratione fernber pro diverfita- «u mv«r- teeorum,ve!ad perpcndicularcm radius incidcns accedet, vel ab eadem reccdct,ut vidcs infequenti figura. A B … Sint divcrfa mediaAB, CD, & EF. Quod fi ponatur ABterius, &CD denfius& EFad huc denfiuspriorc CD,procurret GH in L & inde in G,Sivcro AB dcnfum& CD rarius U EF ad huc rarius defertum. G radiusperlineamGHMT. Qaodfi AB rarius &CD denfins & EF itcrumrarius: producctur G,…
Optics, Geometrical · Optical instruments
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