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Breaking sports news on the internet
There are a lot of places on the internet to get the most up to date sports news, but finding one that has the latest breaking news is quite a trick. What happens to me all the time I will hear a sports score on the news radio station and go crazy...
Golf Swing Instruction - The Athletic Motion
There is one basic athletic motion which is used in all of athletics. The golf swing is golf's version of this athletic motion. It is the same basic motion that is used to hit a tennis ball, throw a football, kick a soccer ball, or break a rack in...
NASCAR: The Rise Of A Racing Empire
In 1947, the sport of stock car racing was becoming extremely popular and beginning to draw large crowds of spectators. More drivers began taking an interest due to the increasing fan popularity. Cohesiveness, however, did not exist as rules...
Three Ways to Destroy Your Ability To Compete-Quickly!
If you want to become the kind of athlete that people always talk about in terms of "potential" rather than results, following the following formula: 1. Focus on that which you are scared of In the world outside of sports, a common...
World Series In Russia - Huh? What?
As we watch the Astros choke or White Sox perform valiantly depending on your point of view, I am reminded of my baseball experience in Russia.
World Series
I always find it interesting that most of our professional sports call the championship...
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In baseball, how does a pitcher throw a curveball?
In baseball, how does a pitcher throw a curveball?
A successful major league batter gets a hit only 30 percent of the time he comes to bat. One of the ways pitchers lower these chances even further is by throwing a curveball. A curveball is a pitch that appears to be moving straight toward home plate but that is actually moving down and to the right or left by several inches. Obviously, a pitch that curves is going to be harder to hit than a fastball that is moving straight.
There are two basic factors involved in creating a curveball:
Proper grip
Air resistance
Any baseball pitch begins with how the pitcher grips the ball. To throw a curveball, a pitcher must hold the baseball between his thumb and his index and middle fingers, with the middle finger resting on the baseball seam. When the pitcher comes through his motion to throw the ball, he snaps his wrist downward as he releases the ball, which gives the ball topspin. If the pitcher throws properly, the back of the his hand will be facing the batter at the end of the motion. The ball will break down and away from a right-handed batter if thrown by a right-handed pitcher.
The spinning action created when the
pitcher releases the ball is the secret behind the curveball. This spinning causes air to flow differently over the top of the ball than it does under the ball. The top of the ball is spinning directly into air and the bottom of the ball is spinning with the air flow. The air under the ball is flowing faster than air on top of the ball creating less pressure, which forces the ball to move down or curve. This imbalance of force is called the Magnus Effect, named for physicist Gustav Magnus, who discovered in 1852 that a spinning object traveling through liquid is forced to move sideways.
Adding to the air pressure exerted on the ball are the 108 red stitches that hold the cover on the ball. Because they are raised, the stitches increase the amount of friction created as the air passes around the ball and places more air pressure on top of the ball. A well thrown curveball can move as much as 17 inches either way. If you've ever seen a batter jump out of the way of a baseball that ends up crossing over the plate, you've seen a good curveball.
About the author:
http://www.a1-baseball-4u.info/
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