Willebrord Snel (1580â1626) Netherlands. Although he discovered the law of refraction, a basis of modern geometric optics, in 1621, he did not publish it and only in 1703 did it become known when Huygens published Snell's law in Dioptrica..
MKDS: Heavy. R.O.B. (short for Robotic Operating Buddy) is an accessory for the Nintendo Entertainment System who has recently made appearances in a few Mario games. In Japan, it was known as the Famicom Robot, which was short for Family Computer Robot.
Dan TDM or The Diamond Minecart is a youtuber and also a game commentator. He plays lots of games and the most played are Minecraft and Minecraft mods. His real name was Daniel Middleton. His wife's name is Jemma (JemPlaysMC). He is the 28th most subscribed person in YouTube.