Opticks, or, A treatise of the reflections, refractions, inflections and colours of light (1721)
Newton, Isaac, Sir, 1642-1727 · London : Printed for William and John Innys at the West End of St. Paul's · leaf 256
Ihewd in the firit Propo-fition. R o p. X. If Light be Jwifter in Bodies than in Vacuo inthe proportion of the Sines uuhich meafure theRefraction of the Bodies, the Forces of theBodies to reflet and refraEi Light, are verynearly proportional to the denfities of thefame Bodies, excepting that… … Angle ACT may be infinitely little, and let CRbe the refrafted Ray. From a given Point Bperpendicular to the refrading Surface eredBRmeeting with the refrafted Ray C R in R, andif C R reprefent the Motion of the refra6ledRay, and this Motion be diilinguiflid into twoMotions CB and BR, whereof CB is…
Optics · Light
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