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.
[Source] XpertThief (born December 17, 1991 (1991-12-17) [age 24]), is a YouTuber, gamer, and rapper who does gaming commentaries. He has over 2,000,000+ subscribers, with over 100,000 views from each video's views. His adoptive name is Kevin, while his birth name is Dontae, with the latter being his stage name. He joined YouTube on April 9, 2006. He is most famous for his Grand Theft Auto videos.