Christiaan Huygens (1629-1695) labored out a mathematical wave concept of light in 1678, and revealed it in his Treatise on light in 1690. He proposed that light was emitted in all Instructions as a series of waves in the medium known as the Luminiferous ether. As waves are not https://prefab-tiny-homes54431.bloggerchest.com/39149837/new-step-by-step-map-for-prefabricated-house