Optical principle progressed during the mid-seventeenth century with treatises prepared by philosopher René Descartes, which spelled out a number of optical phenomena like reflection and refraction by assuming that light was emitted by objects which generated it.[26] This differed substantively from the ancient Greek emission theory. Inside the late 1660s https://tysonaccbz.blogozz.com/29370538/optical-shop-near-me-can-be-fun-for-anyone