That is a good question and it is not for aesthetic purposes. This is designed to create friction, which allows it to bounce and fly in the air similar to how golf balls have dimples. Tennis rackets were originally made of wood. This was quite heavy for the player. Years later, designers were able to produce lighter versions made either of metal or aluminum. Then, straighten your legs by pushing your weight upwards and forwards behind the racquet arm. When the ball has fallen 4 to 6 inches, hurl your racquet up to hit the ball 6. While your racquet arm is fully stretched and your weight is channeled on your front foot, hit the ball. 7. As you create a forward momentum, continue swinging the racquet in the direction of your chosen target. Indoor courts Indoor courts are made of lumber, cement, or 'rug'. Artificial turf is the other name it is known for. Fairly fast and the most typical is the carpet style indoor courts. A less popular indoor surface is the wood courts. To summarize, a tennis court is a place where a tennis game is played. It enhances your oxygen muscle consumption whenever you engage in intense activities. 4. It increases your ability to accelerate through sprinting, lounging and jumping. 5. It trains you to have a quick reaction time and allows you to anticipate movements. 6. It develops your speed whenever you do your sprints and side steps to hit the ball. The Sony Ericsson WTA Tour regularly provides education topics, available on its website, that are focused on improving the player's performance on the court and answering other problems they may encounter as a professional tennis player. Media Training Professional women tennis players conduct themselves well during media interviews and conferences, partly because of the media training provided by the WTA Tour. It is interesting to note that tennis rules have not changed through out the centuries. The main objective of the game is for a player to get the ball over the net and the other player not hitting it. Opponents face one another on the court's opposing sides. The "server" throws out the ball and starts the set.