Intii lagu jiray 1660s iyo 1670s horraantii, Isaac Newton ballaariyay fikradaha Descartes galay aragti ah corpuscle iftiinka, si caan ah loo ogaado in iftiinka cad ahaa isku dar ah ee midabada oo la kala saari karo qaybaha ay ka kooban yihiin la prism ah. In 1690, Christiaan Huygens soo jeediyay aragti ah mawjadaha iftiinka ku salaysan soo jeedinta in la sameeyey by Robert Hooke in 1664. Max Maxwell si cad u dhaleeceeyay aragtiyaha iftiinka iyo mawjadaha kala duwan ee u dhexeeya labada dhiman Bohroke ee la daabacay ilaa 1904. In August 1904, waxaa la daabacay ilaa 1905, waxa uu si adag u muujiyay aragti ah in iftiinka si fiican loo arki karaa oo keliya by James Newton ee aragtida korontada ee korontada.
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