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 61
em. Sic pundus G venit ad K, refrangitur ad P per fecundam huius, inde ad X oculum progreditur per quintam huius: trahatur ca¬ thetus ex G per M centrum, peruenit ad P, ibi igitur pundus G videbitur . Sic F venit ad L, mox refragitur ad Q^& ad oculum X venit,duda catheto ex F per M, occurret in… … Tofum
Optics
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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