Christiaan Huygens (1629-1695) worked out a mathematical wave theory of light in 1678, and released it in his Treatise on light in 1690. He proposed that light was emitted in all Instructions like a number of waves in a medium called the Luminiferous ether. As waves are certainly not https://light-steel-structure-vil00987.mybjjblog.com/details-fiction-and-prefab-house-51085987