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Golf Balls -- The Science Behind The Dimples
by Susan Chiang
The dynamics behind the flight of the golf ball offers a fascinating insight into the physical interworkings of air pressure, turbulence, and aerodynamics.
When golf was first played in Scotland, most players played using clumsy golf apparatus, with the first golf clubs and golf balls made of wood.
In 1618 the 'Featherie' was introduced. It was a golf ball made of feather. This feather golf ball was handcrafted from goose feathers tightly pressed into a horse or cowhide sphere while still wet. After drying, the leather shrank and the feathers expanded, creating a hardened golf ball.
As this type of golf ball was specially handcrafted, it was usually more expensive than golf clubs, so that only a few privileged people could afford to play golf back then.
After the Featherie golf ball came the Guttie golf ball. This type of golf ball was made from the rubber-like sap of the Gutta tree found in the tropics, and was shaped into a sphere when hot and eventually into a golf ball. As it was made of rubber, the Guttie golf ball could be cheaply produced and easily repaired by reheating and reshaping.
Comparing the two types of golf balls, the Featherie golf ball was said to travel farther than the Guttie golf ball because the Guttie golf balls smooth surface prevented it from covering more distance.
With this discovery, the developers of golf balls came up with the 'dimpled' golf balls that are so predominant in modern golf nowadays.
The dimples on the golf balls help reduce the aerodynamic drag. Aerodynamic drag normally affects smooth golf balls and slows them down, because when they sail through the air, they leave a pocket of low-pressure air in its stir thus creating a drag.
By applying dimples to the golf ball surface, the pressure differential goes down and the drag force is reduced. These dimples create turbulence in the air surrounding the golf ball, which, in turn, forces the air to clasp the golf ball more closely. By doing so, the air trails the warp created by the golf ball towards the back instead of flowing past it. This results in a smaller wake and lesser drag.
Dimples were first added onto golf ball surfaces back during the gutta percha phase. Coburn Haskell introduced the one-piece rubber cored golf ball encased in a gutta percha sphere. Then in 1905 William Taylor applied the dimple pattern to a Haskell golf ball, thus giving rise to the modern golf ball as we know it today.
After its beginning, dimpled golf balls were officially used in every golf tournament. In 1921, the golf ball took its current form with standard size and weight. Nowadays there is a wide range of golf balls to fit every style, game and condition, with some golf balls offering control, and other golf balls offering distance.
Though a common sight nowadays, the dimpled golf ball is not just a mere element of the sports arena; it is a showcase of physics at work.
For a more comprehensive look at golf and golf equipment, drop by Susans site Golf Ball City. Other informative sports related articles are available at Shopping Palace and Niche Weblog.
Golf Snippets
Yardage Has Been Lost
The downside of this shot-making decision is that yardage has been lost and, therefore, a possible birdie opportunity has been missed because there is still a fair amount of ground to be made up before the putting surface can be reached. The solution is to hit the ball so that it bends around the trees at the right moment and makes a greater distance down the fairway, resulting in an approach shot much nearer the hole. The skill called for here is to draw the ball, hitting it initially on a path to the right before it curves round to the left, avoiding the trees and leaving a more desirable lie.
...mastering golf UK
Try for a relaxed and comfortable feel. A tight grip will hinder your rhythm and release. The V.s formed by the index finger and thumbs on both hands point between the chin and right shoulder.
...Golf Instruction Guide
Heel shots, scoobies, go rights, or the dreaded "S" word are caused by one thing -- "coming over the top." Coming over the top or swinging across your downward swingpath is perhaps the most common swing fault in golf. The path or arc of the golf swing should be circular (about 45 degrees) on the backswing and a little less circular (about 43 degrees) on the downswing. That variance in plane is called swinging inside. A great cure for coming over the top is to let your right shoulder (for R/H players) come UNDERNEATH your chin on your downswing. You may also feel that you are hitting the ball (in baseball terms) to right field. Dropping your right shoulder will free up the club to extend out toward your target and eliminate the possibility of Mr. Scoobie!
...US Golf Association
top 50 tips9. Through The Navel
An extension of the shaft at address should point at your navel. This ensures that the body is bent over the proper amount and is far enough from the ball.
...Golf Tips magazine
Golf Related News
The Hacker: Glory of Wales drowned out by wails of mobile misery
Sun, 16 Mar 2008 00:00:01 +0000
<p>There will not be a great deal of sympathy available for anyone daft enough to play golf in last week's storms, but that won't prevent me from holding out the begging bowl for a few condolences. It was our annual pilgrimage to St Andrews, and you don't go all the way up there not to play rounds you've paid for in advance.</p>
James Lawton: Harmon recruits The Big Easy to anti-Tiger alliance
Thu, 10 Apr 2008 00:00:01 +0100
<p>The world's most famous golf guru's liking for a challenge dates back to his military assignment to the Vietnam war. Later, Butch Harmon accepted a two-year commission to teach the King of Morocco how to play the game, a challenge which contained enough moments of psychological intrigue to provoke a book called The King and I if someone hadn't beaten him to the title. </p>
golf clothes
The Golf Beginner Guide is an eBook filled with info for the beginning golfer. Get it today!
Golf Balls -- The Science Behind The Dimples
by Susan Chiang
The dynamics behind the flight of the golf ball offers a fascinating insight into the physical interworkings of air pressure, turbulence, and aerodynamics.
When golf was first played in Scotland, most players played using clumsy golf apparatus, with the first golf clubs and golf balls made of wood.
In 1618 the 'Featherie' was introduced. It was a golf ball made of feather. This feather golf ball was handcrafted from goose feathers tightly pressed into a horse or cowhide sphere while still wet. After drying, the leather shrank and the feathers expanded, creating a hardened golf ball.
As this type of golf ball was specially handcrafted, it was usually more expensive than golf clubs, so that only a few privileged people could afford to play golf back then.
After the Featherie golf ball came the Guttie golf ball. This type of golf ball was made from the rubber-like sap of the Gutta tree found in the tropics, and was shaped into a sphere when hot and eventually into a golf ball. As it was made of rubber, the Guttie golf ball could be cheaply produced and easily repaired by reheating and reshaping.
Comparing the two types of golf balls, the Featherie golf ball was said to travel farther than the Guttie golf ball because the Guttie golf balls smooth surface prevented it from covering more distance.
With this discovery, the developers of golf balls came up with the 'dimpled' golf balls that are so predominant in modern golf nowadays.
The dimples on the golf balls help reduce the aerodynamic drag. Aerodynamic drag normally affects smooth golf balls and slows them down, because when they sail through the air, they leave a pocket of low-pressure air in its stir thus creating a drag.
By applying dimples to the golf ball surface, the pressure differential goes down and the drag force is reduced. These dimples create turbulence in the air surrounding the golf ball, which, in turn, forces the air to clasp the golf ball more closely. By doing so, the air trails the warp created by the golf ball towards the back instead of flowing past it. This results in a smaller wake and lesser drag.
Dimples were first added onto golf ball surfaces back during the gutta percha phase. Coburn Haskell introduced the one-piece rubber cored golf ball encased in a gutta percha sphere. Then in 1905 William Taylor applied the dimple pattern to a Haskell golf ball, thus giving rise to the modern golf ball as we know it today.
After its beginning, dimpled golf balls were officially used in every golf tournament. In 1921, the golf ball took its current form with standard size and weight. Nowadays there is a wide range of golf balls to fit every style, game and condition, with some golf balls offering control, and other golf balls offering distance.
Though a common sight nowadays, the dimpled golf ball is not just a mere element of the sports arena; it is a showcase of physics at work.
For a more comprehensive look at golf and golf equipment, drop by Susans site Golf Ball City. Other informative sports related articles are available at Shopping Palace and Niche Weblog.
Golf Snippets
Yardage Has Been Lost
The downside of this shot-making decision is that yardage has been lost and, therefore, a possible birdie opportunity has been missed because there is still a fair amount of ground to be made up before the putting surface can be reached. The solution is to hit the ball so that it bends around the trees at the right moment and makes a greater distance down the fairway, resulting in an approach shot much nearer the hole. The skill called for here is to draw the ball, hitting it initially on a path to the right before it curves round to the left, avoiding the trees and leaving a more desirable lie.
...mastering golf UK
Try for a relaxed and comfortable feel. A tight grip will hinder your rhythm and release. The V.s formed by the index finger and thumbs on both hands point between the chin and right shoulder.
...Golf Instruction Guide
Heel shots, scoobies, go rights, or the dreaded "S" word are caused by one thing -- "coming over the top." Coming over the top or swinging across your downward swingpath is perhaps the most common swing fault in golf. The path or arc of the golf swing should be circular (about 45 degrees) on the backswing and a little less circular (about 43 degrees) on the downswing. That variance in plane is called swinging inside. A great cure for coming over the top is to let your right shoulder (for R/H players) come UNDERNEATH your chin on your downswing. You may also feel that you are hitting the ball (in baseball terms) to right field. Dropping your right shoulder will free up the club to extend out toward your target and eliminate the possibility of Mr. Scoobie!
...US Golf Association
top 50 tips9. Through The Navel
An extension of the shaft at address should point at your navel. This ensures that the body is bent over the proper amount and is far enough from the ball.
...Golf Tips magazine
Golf Related News
The Hacker: Glory of Wales drowned out by wails of mobile misery
Sun, 16 Mar 2008 00:00:01 +0000
<p>There will not be a great deal of sympathy available for anyone daft enough to play golf in last week's storms, but that won't prevent me from holding out the begging bowl for a few condolences. It was our annual pilgrimage to St Andrews, and you don't go all the way up there not to play rounds you've paid for in advance.</p>
James Lawton: Harmon recruits The Big Easy to anti-Tiger alliance
Thu, 10 Apr 2008 00:00:01 +0100
<p>The world's most famous golf guru's liking for a challenge dates back to his military assignment to the Vietnam war. Later, Butch Harmon accepted a two-year commission to teach the King of Morocco how to play the game, a challenge which contained enough moments of psychological intrigue to provoke a book called The King and I if someone hadn't beaten him to the title. </p>
golf clothes
Labels: golf accessories | golf club
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