Christiaan Huygens (1629-1695) labored out a mathematical wave idea of light in 1678, and printed it in his Treatise on light in 1690. He proposed that light was emitted in all directions being a number of waves in a very medium known as the Luminiferous ether. As waves are https://flat-pack-container-house21098.techionblog.com/39120139/new-mobile-homes-an-overview