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A golf ball beside a hole. A golf ball is a ball designed to be used in golf.Under the rules of golf, a golf ball has a mass no more than 1.620 oz (45.93 g), has a diameter not less than 1.680 inches (42.67 mm), and performs within specified velocity, distance, and symmetry limits.
The notch may be a hole completely through the bar or just a depression in it. The ball is pulled out of the notch by gravity when the device is slowly raised to an angle of about 20°, rolling onto the green at a repeatable velocity of 6.00 ft/s (1.83 m/s). [6] The distance travelled by the ball in feet is the 'speed' of the putting green. Six ...
Lift and drag properties of golf balls are customized by the manipulation of dimples along the surface of the ball, allowing for the golf ball to travel further and faster in the air. [ 8 ] [ 9 ] The data from turbulent-flow phenomena has been used to model different transitions in fluid flow regimes, which are used to thoroughly mix fluids and ...
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The curved path of a golf ball known as slice or hook is largely due to the ball's spin axis being tilted away from the horizontal due to the combined effects of club face angle and swing path, causing the Magnus effect to act at an angle, moving the ball away from a straight line in its trajectory. [29]
Callaway Golf Company engineers, recruited from Du Pont and Boeing, used aerodynamic computer programs (first used by Boeing and General Electric) to evaluate more than 300 dimple patterns and more than 1,000 variations of ball cores, boundary layers, and cover materials to create the new Rule 35 ball. They settled on only two versions of the ...
If the golf ball were smooth, the boundary layer flow over the front of the sphere would be laminar at typical conditions. However, the boundary layer would separate early, as the pressure gradient switched from favorable (pressure decreasing in the flow direction) to unfavorable (pressure increasing in the flow direction), creating a large ...
References External links 0–9 19th hole The clubhouse bar. A ace When a player hits the ball directly from the tee into the hole with one stroke. Also called a hole in one. address The act of taking a stance and placing the club-head behind the golf ball. If the ball moves once a player has addressed the ball, there is a one-stroke penalty, unless it is clear that the actions of the player ...
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