What do the sci-fi movies of the ‘50s and the Rolling Stones have in common? They both owe something to Leon Theremin. An electronic genius, he invented the theremin, a musical instrument you play by waving your hands around two electrical coils. You don’t actually touch the coils, but by moving your hands closer to and further away from them, you get an eerie, surreal sound. (You’ve heard a theremin if... More >>>