Who invented the theremin?
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
Reference: Smithsonian Magazine
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
Benjamin Franklin invented the glass armonica in 1761.
A theremin has two antennas. Moving one hand near the vertical antenna changes the pitch, and moving the other near the loop antenna changes the volume.