Equipments :
6/1/2010 2 Equipments Baseball glove
Baseball
Baseball bat
http://students.umf.maine.edu/~morrisbj/baseballwebquest/BoysBaseball.jpg
Baseball Bat and Baseball Glove :
6/1/2010 3 Baseball Bat and Baseball Glove Baseball bat is a wooden or metal club, it is used to hit the ball after the pitcher throws the ball.
Baseball Glove is used by the players on the defending team, it allows them to catch balls hit by the batter.
http://en.wikipedia.org/wiki/Baseball_bat
http://en.wikipedia.org/wiki/Baseball_glove
History and evolution of the baseball bat :
6/1/2010 4 History and evolution of the baseball bat Baseball bats in the early days of baseball came in all shapes and sizes. In the 1850's baseball was an extremely young sport and batters made their own bats and experimented with bats of all varieties (long, short, flat, heavy). Because bats of all shapes and sizes were being used, a rule was made in 1859 that bats could be no larger than 2.5 inches in diameter
http://en.wikipedia.org/wiki/Baseball_bat
Polymers improved this equipment :
6/1/2010 5 Polymers improved this equipment Baseball bats are typically constructed using a mixture of fiber materials such as fiberglass, graphite and aramid.
http://www.patentstorm.us/patents/6723012/description.html
History and Evolution of the Baseball glove :
6/1/2010 6 History and Evolution of the Baseball glove Baseball Gloves were first used in the game of baseball in the 1870’s, and the gloves were really different from the baseball gloves of today. At first, baseball gloves were designed only to pad the hands of the fielders so they could knock down the baseball and were just a piece of leather padding that covered the palm of the hand. The first players who wore gloves were even looked down upon for not being tough enough, but soon gloves became a standard piece of equipment. By the 1890's.
Polymers improved this equipment :
6/1/2010 7 Polymers improved this equipment Gloves are basically made out of leather. And the method of turning animal skins into leather is called “ vegetable tanning” The process of glove making involves molding a hollow plastic shell into the exterior convex front and back surfaces of the baseball glove.
http://www.answers.com/topic/baseball-glove
Our football Field :
6/1/2010 8 Our football Field Football is made of polyethylene, it’s a very famous plastic and football field turf. These two things are very important. And these two are called polymers.
http://en.wikipedia.org/wiki/Main_Page