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Its bullet-like spinning motion may hide the seams of a ball from the view of the batter, making it difficult to predict the pitch. Typical strategy entails throwing many variations of pitches, followed by a gyroball. The batter, predicting a change in speed caused by the ball's spin, may adapt to the wrong speed and swing incorrectly.
A control moment gyroscope (CMG) is an attitude control device generally used in spacecraft attitude control systems. A CMG consists of a spinning rotor and one or more motorized gimbals that tilt the rotor’s angular momentum.
The hemispherical resonator gyroscope (HRG), also called wine-glass gyroscope or mushroom gyro, is a compact, low-noise, high-performance angular rate or rotation sensor. An HRG is made using a thin solid-state hemispherical shell, anchored by a thick stem.
At the suggestion of Dr. Mueller, the technically difficult task of replacing the original ball bearings with gaseous bearings was achieved. Initially, compressed nitrogen was used but later fluorocarbons which had the advantage of being recyclable on board the missile or aircraft during extended waiting periods was used.
GYRO, a computer program for tokamak plasma simulation; Gyro Motor Company, an American aircraft engine manufacturer; Gyrodactylus salaris, a parasite in salmon; Gyroscope, an orientation-stabilizing device; Autogyro, a type of rotary-wing aircraft; Honda Gyro, a family of tilting three wheel vehicles
Using gyrotrigonometry, a gyrovector addition can be found which operates according to the gyroparallelogram law. This is the coaddition to the gyrogroup operation. Gyroparallelogram addition is commutative.
Vulcan changeup grip. In baseball, the vulcan changeup pitch (otherwise known as a vulcan or trekkie) is a type of changeup; it closely resembles a forkball and split-finger fastball.
A lightweight ring with two notches for the axle ends rests in the groove. This ring can slip in the groove, allowing the ball to spin perpendicular to the rotational axis of the ring. To increase the angular velocity of the ball, the sides of the groove exert forces on the ends