Christiaan Huygens (1629-1695) worked 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 Instructions like a number of waves inside a medium known as the Luminiferous ether. As waves usually are https://prefabricated-house98766.total-blog.com/top-latest-five-lgs-house-urban-news-64202691