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Bulletin of Science, Technology & Society, Vol. 22, No. 1, 13-20 (2002)
DOI: 10.1177/0270467602022001002

The World of Boomerangs

Yutaka Nishiyama

Osaka University of Economics

After touching on the three most common misconceptions regarding boomerangs, the author goes on to explain why a boomerang is crescent shaped. The author explains, using the principle of precession motion, why a boomerang turns leftward and why it falls sideways; and he performs a comprehensive analysis through the "right-hand rule," using the example of a gyro top. The author also explains how to make and fly the boomerang he invented—one that can fly inside a room and come back correctly.

Key Words: boomerang • precession motion • gyroscopic effect • gyro top • right-hand rule • swept-back wings


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