Catacombs of Yucatan Sound and Video Installation | | Pushup (see news video) October 1995 | Resonant piece of metal scrap flings geometric objects (flying mallets) into the air. Flung objects create complex interactions while striking resonator. Beating achieved by subaudio feedback loop: modified eight ohm speaker beneath plate is connected to small amplifier with input from piezo located beneath speaker. | MAIN INDEX