Christiaan Huygens (1629-1695) labored out a mathematical wave theory of light in 1678, and posted it in his Treatise on light in 1690. He proposed that light was emitted in all Instructions as being a series of waves inside a medium called the Luminiferous ether. As waves are not https://lightsteelvilla33210.iyublog.com/37794519/new-mobile-homes-an-overview