Christiaan Huygens (1629-1695) labored out a mathematical wave idea of light in 1678, and revealed it in his Treatise on light in 1690. He proposed that light was emitted in all directions as being a number of waves in a medium known as the Luminiferous ether. As waves will https://lightgaugesteelframing66443.blog5.net/87791836/light-steel-villa-for-dummies