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When throwing a gyroball, a pitcher holds the side of the ball with a fastball grip placed on the baseball's center (or equator). The pitcher's hips and throwing shoulder must be in near-perfect sync, something the book refers to as "double-spin mechanics". According to Tezuka, the arm angle needs to be low, no higher than a sidearm delivery.
A skill toy is an object or theatrical prop used for dexterity play or an object manipulation performance. A skill toy can be any static or inanimate object with which a person dances, manipulates, spins, tosses, or simply plays. Most skill toys are played alone, although some can be played with multiple people (such as footbag, juggling, and ...
Inside the outer shell, the spinning mass is fixed to a thin metal axle, each end trapped in a circular, equatorial groove in the outer shell.A lightweight ring with two notches for the axle ends rests in the groove.
A frisbee (pronounced / ˈ f r ɪ z b iː / FRIZ-bee), also called a flying disc or simply a disc, is a gliding toy or sporting item generally made of injection-molded plastic and roughly 20 to 25 centimetres (8 to 10 in) in diameter with a pronounced lip. It is used recreationally and competitively for throwing and catching, as in flying disc ...
The gyroball is basically a back-up slider, and you'll sometimes see pitcher's accidentally throw it when they tilt the spin axis of their slider in a way that causes the usual side spin to be gyrospin. The definition of a true gyroball is one with only gyrospin, and thus no horizontal or vertical spin deflection.
A spinning top, or simply a top, is a toy with a squat body and a sharp point at the bottom, designed to be spun on its vertical axis, balancing on the tip due to the gyroscopic effect. Once set in motion, a top will usually wobble for a few seconds, spin upright for a while, then start to wobble again with increasing amplitude as it loses ...
Box for a WHEE-LO toy The Schylling "magnetic gyro toy" has a design that is very similar to the original WHEE-LO toy. WHEE-LO is a trademark for a handheld toy that propels a plastic wheel along both sides of a metal track with magnets built into the wheel. As the track is tilted up and down, the wheel rolls the length of the track, top and ...
The Wizzzer or Wiz-z-zer is a gyrostat toy introduced by Mattel Toymakers in 1969, and introduced the spinning top to modern children. The "twist" (innovation) was the use of a super-spinning, high-tech bearing, that allowed the top to spin at very high speed and remain standing for a long period of time.