Christiaan Huygens (1629-1695) worked out a mathematical wave principle of light in 1678, and printed it in his Treatise on light in 1690. He proposed that light was emitted in all Instructions being a series of waves in a very medium called the Luminiferous ether. As waves are usually https://dallasuenvd.post-blogs.com/59612070/little-known-facts-about-light-gauge-steel-villa