The Voice of the Yeti!
Friedhoffer, Bob, Skeptic (Altadena, CA)
The bullroarer can drive people crazy with the strange buzzing noise it makes as you spin it.
TO OPERATE IT
Hold the free end of the cord or handle. Start to whirl the bullroarer around your head as shown. As soon as it gets spinning fast enough, you should hear a strange noise. Do you now see why it's called a bullroarer? (The foot-long models shown on the right sound more like a gigantic buzzing hornet.) You can vary the sound quality by varying the bullroarer's speed.
HISTORY OF THE BULLROARER
People have used the bullroarer for thousands of years as a musical instrument, a toy, in religious ceremonies, and as a communication device over long distances. The Aboriginal people of Australia make many beautifully painted bullroarers carved into streamlined shapes. In the movie Crocodile Dundee, the hero uses a bullroarer.
TO MAKE A BULLROARER
Drill a hole in the end of a wooden paint stirrer. Or even better, because it's heavier, use a hardwood foot-long ruler (30cm). A thin flat shape works best-the foot-long ruler shown here was less than 1/8 inch thick, but it was almost 1 1/2 inches wide (. …