Who invented the theremin?
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
Reference: Encyclopaedia Britannica
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
Musical saw players usually sit and hold the saw's handle between their knees.
A hurdy-gurdy makes sound when the player turns a crank that spins a rosined wheel against the strings, working like a violin bow.