3 Eli the Bearded 11-11-2002 02:31 PM ET (US) Funny how either pong or tetris is used for so many of these hacks. http://www.blinkenlights.de/gallery/tetris.en.html 2 Bram van den Broek 11-09-2002 11:58 AM ET (US) Hi there! One micrometer (or micron) is about 0.00004 inch, so with a total playfield of 25x20 microns, about a thousand tetrisfields end-to-end, or a million on a square inch! Bram van den Broek Vrije Universiteit Amsterdam 1 kisrael 11-09-2002 11:48 AM ET (US) so how many of these end to end would, say, make up an inch?	Upgrade to PRO Upload pictures, personalize your board, and more! About these ads