Featured Links

Other Topics
Sponsored Links







Quote of the Day

"Although... the Chief Magistrate must almost of necessity be chosen by a party and stand pledged to its principles and measures, yet in his official action he should not be the President of a party only, but of the whole people of the United States."

James Polk



Recommended Products



Click here for eBay Motors!


 






 
Featured Baseball Articles

Florida a Sporting Powerhouse
Florida is one of the most Southern of all the United States. It is known as the Sunshine State for it's warm weather and pacific climate. "Florida" is a Spanish adjective which means "flowery". Florida was discovered by a Spanish explorer during Easter, ...

Pree-Teens Look to Steroids as "Magic Pill" for Fashionable Figures
Healthy fitness guru joins doctors, educators, coaches, event organizers, and others in urging young people to do things the old-fashioned way…with diet and exerciseIn an alarming trend that has continued to grow since the early 1990's, government and ...

Why Do You Run?
Copyright 2005 Mary Desaulniers It is a simple question from a seven year old that starts me on a life review. "Why do you run?" she asks when I stop for lemonade at her make-shift stand, the one sporting a sign that warms my heart: " lemonaid 10 cents." ...




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/






Google


Baseball News

Carl Pohlad, owner of Twins, winner of two World Series - Boston Globe
MINNEAPOLIS - Carl Pohlad, a billionaire banker whose Minnesota Twins won two World Series titles during nearly his nearly quarter-century as owner, died yesterday. He was 93. The Twins and Major League Baseball each issued a statement confirming his ...

MLB to suspend Phillies LHP Romero, Yankees RHP Mitre 50 games - Sporting News
An arbitrator ruled that Romero was "negligent" in not knowing what was in the supplement, 6-OXO Extreme, which Romero purchased last July at a retail store in Cherry Hill, N.J. Romero bought the supplement in conjunction with his weight training ...

Milton Bradley agrees to deal with Cubs - Seattle Times
Milton Bradley led AL in on-base percentage. CHICAGO — The Chicago Cubs and switch-hitting Milton Bradley reached a preliminary agreement Monday on a $30 million, three-year contract, according to a person familiar with the negotiations. The deal ...

Tampa Bay Rays fill DH spot by signing Pat Burrell to two-year deal - St. Petersburg Times
Pat Burrell has averaged 31 homers, 99 RBIs and 103 walks the past four years and gives Tampa Bay a needed righty bat. ST. PETERSBURG — After getting free agent Pat Burrell to put his signature on a two-year, $16-million contract Monday, the Rays ...

Different strokes for Heisman QBs Bradford, Tebow - Missoulian
FORT LAUDERDALE, Fla. - Sam Bradford strolled through Manhattan by himself the day after winning the Heisman Trophy. He wore a baseball cap, blended in with the New Yorkers and hardly got noticed. He returned to Oklahoma the following day, attended ...