The Time Machine was a 100-foot-long interactive piece installed in the lobby of the Kimmel Center for the duration of the PIFA Festival. The different elements were activated through a variety of gestures that were sensed by the tube. These actions included motion sensors that detected bodies in space and modulated a pulse of light as well as a pair of steel rods that could read someone’s heartbeat. This heartbeat information was then processed and the user’s heartbeat began to populate a field of 300 hanging crystals.