The thumb whistler

By Filip Salomonsson; published on February 02, 2007.

A very recent accidental discovery: I can whistle with the tip of a finger held against or between my lips. Quite loudly. (I don't think I'll explore the amplitudal limits any further while at work.)

I have this sneaky feeling I might just be the last person on earth to figure this out.

Anyway, as you were.