tique in praced. propo.demonftratum ) ficut itaque denium ^.ad 1.& 2. ad 1. ita angulus refra&us MCPadBCL&KBCadlBA, ergo etiam uccompofiteMCP &BCLfimuladKBC&IB& fimul. Quia itaque KBC&:LCB sequales funt; fublatis utrinque asqualibus crit etiam angulus MCP adIB A ut… … Confir. - V Stntagma II. Caput IV. S> Conflrmatur ab exemplo ex tabulis refra&ionum. Vitel. lib. 10. prcpo. 8.Ponamus enim radium ex aere in aquam,& pcr aquam in vitrum tranfire :quia icaqueaqua dcnfioreft aere , & vitrum denfius efl aqua, radius juxtapropofitam do&finam incidens…
Optics, Geometrical · Optical instruments
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