Christiaan Huygens (1629-1695) labored out a mathematical wave idea of light in 1678, and published it in his Treatise on light in 1690. He proposed that light was emitted in all directions being a number of waves inside of a medium called the Luminiferous ether. As waves usually are https://prefab-house54421.dsiblogger.com/72045098/modular-container-house-no-further-a-mystery