Historically, depending on the backdrop color of the courts, balls were either black or white. The ITF incorporated yellow tennis balls into the rules of tennis in 1972, after studies revealed that these balls were more visible to television viewers. In 2001, the red ball was introduced as a replacement for the black ball; however, this ball is still used by some manufacturers and has become an iconic part of sports marketing.
These days, balls can be many different colors, but they usually consist of three layers: a casing, a core, and a coating. The purpose of each layer is discussed below.
The first modern tennis balls were made from feathers stuffed with cotton. These balls were used as early as 1845 and were known as "feathers" because they were made from the plumes of birds such as turkeys, peacocks, and quails. Around 1870, rubber balloons were inserted into the center of these balls to provide greater bounce. However, these balls became too fragile over time and were replaced around 1910 with balls composed entirely of rubber. These balls are what you see today in use at most tennis events.
The introduction of the ITF code in 1972 led to the development of new types of balls that could be seen more on TV. These yellow balls contained synthetic materials which provided better visibility during televised matches.
Tennis balls used to be white or black, according to the ITF. That changed with the introduction of television. Viewers had difficulty seeing tennis balls when they were thrown across the court during broadcast matches, thus the ITF ordered events to begin using yellow balls in 1972. (though white ones were still allowed).
Now they are usually orange or red.
The original reason for making them orange was so that players would get enough light to see their moves on the dark courts of olden times. Today's players don't need this help because they wear sunglasses during play. The real reason is probably because people like looking at bright colors!
There are some rare exceptions to this rule. Sometimes black balls will appear at high-level events. These balls are actually painted with ink and then covered in leather. The letters 'ET' are printed on one side of each ball to indicate that it is a legal tennis ball. These special balls are needed because rubber balls lose momentum after a few bounces and become difficult to handle.
At least one world championship has been won with a black ball. In 1877, American player DeWitt C. Poole outplayed Englishman William Renshaw 3-0 in the final match of the tournament. Since there were no rules against throwing balls, Poole used all his spare time between sets to make his own black ball.
The Yellow Ball, 1972 The ITF incorporated yellow tennis balls into the rules of tennis in 1972, after studies revealed that these balls were more visible to television viewers. Meanwhile, Wimbledon maintained to utilize the original white ball until 1986, when it switched to yellow balls.
1986 The Ball in Yellow The ITF incorporated yellow tennis balls into the rules of tennis in 1972, after studies revealed that these balls were more visible to television viewers.
Because bears are protected animals in Mississippi.
Your car is set up for right-hand drive and therefore will naturally wiggle to the left when you turn right. To stop this you need to adjust your steering column or find a model that is set up for left-hand drive.
Your car is set up for left-hand drive and therefore will naturally wiggle to the left when you turn right. To stop this you need to adjust your steering column or find a model that is set up for right-hand drive.