Voice synthesizer
The glowing lucite blocks are hollowed out in the shape of vocal tracts. If you connect the air hose to the blocks, it makes different vowel sounds.
Taken Monday, July 02, 2001, 10:25:30am. Original image size: 1600x1200, 928kb
Technical details: Olympus C700UZ, 1/30s @ F3.5, ISO 320, 104mm