Bullroarer
The bullroarer is an oval wooden slat whirled on the end of a cord to produce a low, roaring hum, used by the Aboriginal peoples of Australia in initiation and ceremony. As the slat spins, it cuts the air and the pitch rises and falls with the speed of the whirling, and the sound can carry across a surprising distance. In south-eastern Australia the voice of the bullroarer is sometimes said to be the voice of the ancestor Daramulum, and in many traditions the instrument is kept for the men's law, so that women and children are not shown it. The bullroarer is found in many parts of the world, b