“But it will be found... that one universal law prevails in all these phenomena. Where two portions of the same light arrive in the eye by different routes, either exactly or very nearly in the same direction, the appearance or disappearance of various colours is determined by the greater or less difference in the lengths of the paths.” TwoDifferentLightEyeLawScienceFoundDifferencesPathGreaterUniversalVariousAppearanceDeterminedColourLengthPortionsRoutesDisappearanceUniversal Laws Author:Thomas Young
“Proposition VIII. When two Undulations, from different Origins, coincide either perfectly or very nearly in Direction, their joint effect is a Combination of the Motions belonging to each.” TwoDifferentScienceDifferencesEffectsCombinationBelongingPropositionsJoints Book:Miscellaneous Works: Scientific memoirs Source: Miscellaneous Works: Scientific memoirs
