We're big fans of homemade instruments, synthesizers and other noise makers here at Engadget. Russian artist Vtol created a massive laser-powered drum machine installation as part of Earth Lab, a joint project between the Polytechnic Museum Moscow and Ars Electronica Linz. Vtol describes the huge instrument as "an autonomous light-music installation," and it's certainly provides a neat visual to complement its noise making. The setup is officially called "Divider" and it uses seven lasers that pass through fans to send a light signal for generating sound. The laser beams are altered by high-speed fans with a photo sensor on the end monitoring the presence or absence of light.