"Tape Recorders" (2011) by Rafael Lozano-Hemmer

Subsculpture 12
motorised measuring tapes, kinect tracking systems, computers, cameras, thermal printer, custom-made hardware and software
dimensions variable

Rows of motorised measuring tapes record the amount of time that visitors stay in the installation. As a computerised tracking system detects the presence of a person, the closest measuring tape starts to project upwards. When the tape reaches around 3m high it crashes and recoils back.

Each hour, the system prints the total number of minutes spent by the sum of all visitors. Commissioned by the Museum of Contemporary Art, Sydney.

On view at Museum of Contemporary Art, Sydney until February 12, 2012.