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.
Duke Devlin, known as Ryuji Otogi in the manga and Japanese version, is the creator of the game Dungeon Dice Monsters. Duke also owns the Black Clown game shop, which rivals Solomon Muto's Kame Game. In the manga, the Black Clown is owned by his father, Mr. Clown..