The Roomba from iRobot is an autonomous vacuuming robot for use in consumers' homes. The unit is a circular robot that measures less than 14 in. in diameter and less than 3 in. in height. The Roomba ...

Some readers may recall building a line-following robot during their school days. Involving some IR LEDs, perhaps a bit of LEGO, and plenty of trial-and-error, it was fun on a tiny scale. Now imagine ...