After that it change Laminated wood construction yielded more strength in racquets used through most of the 20th century until first metal and then composites of carbon graphite, ceramics, and lighter metals such as titanium were introduced.
These stronger materials enabled the production of oversized rackets that yielded yet more power. Meanwhile technology led to the use of synthetic strings that match the feel of gut yet with added durability.
Next is the tennis ball,for the Tennis balls are of hollow rubber with a felt coating. Traditionally white, the predominant color was gradually changed to Optic Yellow in the latter part of the 20th century to allow for improved visibility.
hard court
grass court
Lastly tennis court, Court tennis is the most important aspect. Tennis is played on a rectangular, flat surface, usually grass, clay, a hard-court of concrete and/or asphalt and occasionally carpet (indoor). The size of tennis court is 78 feet (23.77 m) long, and 27 feet (8.23 m) wide for singles matches and 36 ft (10.97 m) for doubles matches. Additional clear space around the court is required in order for players to reach overrun balls. A net is stretched across the full width of the court, parallel with the baselines, dividing it into two equal ends. The net is 3 feet 6 inches (1.07 m) high at the posts and 3 feet (91.4 cm) high in the center.
link from:
http://en.wikipedia.org/wiki/Tennis
http://www.myclimatechangegarden.com/blog/wimbeldon-grass-court-debate
http://www.france-hotel-guide.com/en/roland-garros2.htm
http://www.mindtheracket.com/2010/07/whats-in-a-hard-court/
http://wallpapers.bhist.com/3698-Tennis_ball_and_racket_by_the_net_wallpaper/
0 comments:
Post a Comment