Anfischer writes –
“This a digital marionette. the later model powerbooks are equipped with a motion sensor that can be accessed by software. I wrote a small processing application that reads out the sensor. The digital representation of the marionette reacts to the sensor output and can be controlled by moving the laptop. The idea was to extend the laptop with a pair of strings to use it as a digital marionette. The application I wrote reads out the PowerbookÂ´s sudden motion sensorÂ´s position data and then uses it, to move the marionette accordingly. If you tilt the notebook to the left, the marionette on the screen reacts to gravity and also swings left (and vice versa). To see the marionette in action… The next step would be to equip two or more laptops with the handles and stage a play at your local kindergarten.” [via] – video & more info.