Wired News: Boards Get Brains, Chalk Vanishes

Wired News: Boards Get Brains, Chalk Vanishes: «NEW YORK — Third graders at Columbia University’s elementary school may never know the painful sound of fingernails scratching on a chalkboard. That’s because the dust-covered board that normally would be the focus of their classroom has been replaced by a giant, touch-sensitive computer screen.»