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.
Wario (ã¯ãªãª, Wario, [wÍa.É½i.o]) (English /ËwÉËrioÊ/) is a character in Nintendo's Mario series who was originally designed as an archrival of Mario. He first appeared in the 1992 Game Boy title Super Mario Land 2: 6 Golden Coins as the main antagonist and final boss. His name is a portmanteau of Mario's name and the Japanese word warui (æªã), meaning bad.