Christiaan Huygens (1629-1695) labored out a mathematical wave concept of light in 1678, and published it in his Treatise on light in 1690. He proposed that light was emitted in all Instructions as being a series of waves inside of a medium known as the Luminiferous ether. As waves https://lightsteelframehouses65432.bloggosite.com/46436271/5-easy-facts-about-light-steel-frame-houses-described