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1. gyroscopic exercise toolSports, From English “power ball”
2. Powerball (US lottery)
3. Gyroscopic exercise toolA gyroscopic exercise tool is a device used to exercise the wrist as part of physical therapy or in order to build palm, forearm and finger strength. It can also be used as a unique demonstration of some aspects of rotational dynamics. The device consists of a tennis ball-sized plastic or metal shell around a free-spinning mass, which can be started with a short rip string or by a snap of the thumb.
Read “Gyroscopic exercise tool” on English Wikipedia
Read “パワーボール” on Japanese Wikipedia
Read “Gyroscopic exercise tool” on DBpedia
Read “Gyroscopic exercise tool” on English Wikipedia
Read “パワーボール” on Japanese Wikipedia
Read “Gyroscopic exercise tool” on DBpedia
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