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 Entertainment System Deluxe Set (NES) CIB Rob Never Used Mint Games CIB. For sale is a Nintendo Entertainment System Deluxe Set. ROB the Robot never used. The Nintendo worked fantastic both games fired up 1st try. Both games are complete in box (CIB) with manual and foam i...