Last minute
2009
Jorge Macchi and Edgardo Rudnitzky
Installation site specific for the room Octagon at the Pinacoteca del
Estado de Sao Paulo, Sao Paulo, Brazil.
Iron, two speakers, microphone, amplifier, computer
Diameter 10 meters, height 50 cm

[play video]

The image of a big clock comes out from the octagonal shape of the room. In this case there's just one arm 6 meters long, the seconds hand, that rotates 360 degrees in one minute around the center of the room where there is an engine.
At the end of the hand there is a sensor in contact with the floor registering the smallest imperfections on the surface of it. The signal is transmitted to a computer that transforms it into sound that is send to the speakers: high frequencies go to the smaller speaker and low frequencies to the bigger. The speakers work also physically because they balance the hand. As they are in perpetual movement the sound font is moving all the time.
During a minute the hand recollects and accumulates the sound, and when the minute finishes the sound stops and everything starts again from silence.
A railing surrounds the installation and determines the 60 seconds with the vertical elements.