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.
Nintendo NES Complete Box Game System Non Deluxe Version Test Market Rob Robot. Up for sale is a Non Deluxe Nintendo NESSystem in Box with Rob Robot, Controller 2X, Light Gun Controller, Gyromite / Duckhunt Games, Power Adapter, RF RCA AV Cable, All Gyro Parts.