Beep-it Optical Theremin analog Textural patterns were etched on

Textural patterns were etched on it with a laser

Beep-it uses a replaceable 9v battery for power

fuzzy televisions

The Wiggle signaller is an optical theremin with a second "wobbly" oscillator built in for extra spacey goodness

Beep-it Optical Theremin analog Textural patterns were etched onBeep it is an analog optical theremin, which is to say it's a simple electronic musical instrument that responds to light. There is a video demonstrating what Beep it sounds like and can do here: That is an older version of Beep it that was made of plastic. This one is made of wood and is much nicer. By using your hands to cast shadows over Beep it or waving it around near a light source, one can generate a wide range of pitches. Careful manipulation