The man in this semi-fictional vignette was Lev Sergeyevich Termen, better known in the western world as Léon Theremin. You know Theremin for the musical instrument which bears his name.

Hackaday.io user [eagleisinsight] is a high-school hacker whose dreams of becoming a Theremin virtuoso were thwarted by the high cost of a commercial instrument. His response is the Minimin ...

Remember the theremin? Controlled using a performer's hand movements in mid-air, it's one of musical history's most fascinating instruments, lending its creepy tones to B-movie soundtracks ...

Fred Liddle from South East London is on a mission to make the theremin 'happen' – but our Judges aren't convinced by its' distinctive sound.