One of our readers just sent in this nifty clip of a “LEGO Ball Balancing Machine”, which features “a touchscreen (without the screen) for detecting the balls position and a servo motor for moving the ball.” Video demonstration after the jump. (Thanks, Brian L)

One of our readers just sent in this nifty clip of a “LEGO Ball Balancing Machine”, which features “a touchscreen (without the screen) for detecting the balls position and a servo motor for moving the ball.” Video demonstration after the jump. (Thanks, Brian L)