Christiaan Huygens (1629-1695) worked out a mathematical wave idea of light in 1678, and revealed it in his Treatise on light in 1690. He proposed that light was emitted in all directions for a series of waves inside of a medium called the Luminiferous ether. As waves are usually https://andyvdmuc.activoblog.com/47057725/5-easy-facts-about-light-steel-frame-houses-described