Polymers in TennisBy: Glizyl Luna

What different types of equipment are used in your sport?

● Need a tennis ball● A tennis racquet ● Tennis shoes● Tennis court

http://www.google.com/webhp?hl=en

A tennis ball and a tennis Racquet

● They use a tennis racquet to hit the ball to other side of the court, going back and forth.

● The tennis ball is used to bounce the ball back and forth until a player misses.

http://images.google.com/images?hl=en&rlz=1T4SUNA_enUS277US298&um=1&sa=1&q=someone+playing+tennis&aq=f&oq=&aqi=&start=0

The evolution/history of the tennis racquets

● The first tennis racquets were actually the players hands and gloves to hit the ball. They then evolved into wooden paddles. In the 14th century they had a racquet with strings with a wooden frame. One hundred years later new improvements in technology they had laminating the technology on the racquets.

http://tennis.about.com/od/racquetsballsstringing/a/evolmodracquet.htm

Polymers have improved

● The natural “gut” string is the important characteristics of strength, resiliency and surface roughness. The improved string is in the form of a filament of polymer material which is nylon. The result is a racquet string of improved stretch resilience, or resilience under tension.

http://www.patentstorm.us/patents/4043555/description.html

The evolution/history of tennis balls

● The tennis balls were made of leather, stuffed with hair or wool.

● Now they are made from rubber and felt that increases the ball's wind resistance and control.

http://ezinearticles.com/?Tennis-Balls&id=3168375

Polymers improved in tennis balls

Leather was the first material used.

Now the polymer, polyisoprene are used in the tennis ball cores.

http://images.google.com/images?hl=en&rlz=1R2SUNA_enUS346&um=1&sa=1&q=core+of+a+tennis+ball+&aq=f&oq=&aqi=&start=0

Research the football field/outdoor track and how polymers were

important.● On the football field

there are polymers which are polyethylene and polyurethane are included in the construction of similar football/track fields around the world.