cedit & in priore cafu ad perpendi- cularcm B L accedit. Sed quia ab hac diverfarum determinationum tcndentia omnium mobilium obli.quc motorum corporum motus, ac appulfus ad obvium aliud corpus habitudodcpendet*infupertotarcflcxionum& rcfradionum do&rina fundatur,eaquequspraxedc.… … ex. g7£mobilc corpus fphsericum Cquod inteJIfgacur oblique moverllinea C e B,ibique in oppofitura corpusE B F impingi. Erit determinatio late-ralis C G D, & defccnforia C, a, b, five d,c, f, aut G, I, B, omnes cnimaequalcs.Jam fi ponamus mobile C defcendere in B fpatio duorum momcntorum :…
Optics, Geometrical · Optical instruments
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