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 for a number of waves inside a medium called the Luminiferous ether. As waves aren't influenced by https://lightgaugesteelvilla10988.ziblogs.com/39213875/little-known-facts-about-light-gauge-steel-villa