Scratch input allows us to use solid surfaces as an input devices by capturing the sounds they produce. Using a stethoscope and a high pass filter, they capture the unique sounds of specific gestures.

The sound of a fingernail raking across a table or a board may be enough to drive most people crazy. But get past that annoyance and it could become a way to answer your phone, silence a call or turn ...

In an interview with Mitchel Resnick, who leads the group at MIT that develops Scratch, Amanda Sandler, CS First Program Manager asked Mitchell to explain main new features of the new Scratch 3.0 ...