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Quotation from Treatise on Light by Christiaan Huygens
“for I call them waves from their resemblance to those which are seen to be formed in water when a stone is thrown into it”
Treatise on Light, Chapter I, trans. Silvanus P. Thompson (1912)
Huygens names the spherical surfaces by which light spreads, drawing the analogy with ripples on water.
Citation: "for I call them waves from their resemblance to those which are seen to be formed in water when a stone is thrown into it" — Christiaan Huygens, Treatise on Light, Chapter I, trans. Silvanus P. Thompson (1912). (id huygens-treatise-on-light-q4)
Portrait: Christiaan-huygens4, Bernard Vaillant, Public domain.
