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Literature · Science

Opticks 6Defin. Iv

18

Literature · Science

Opticks 6

Defin. Iv

NewtonEnglish
_The Angle of Incidence is that Angle, which the Line described by the incident Ray contains with the Perpendicular to the reflecting or refracting Surface at the Point of Incidence._
Opticks 5Opticks 7

Newton — Opticks (Isaac Newton) (1704). Public Domain. Isaac Newton, Opticks; public domain in the US; text from Project Gutenberg #33504. Source