Give them to someone with a dog.
New tennis balls are considered fresh and not "flat". Old tennis balls exposed to play and air become flat and do not perform normally in a match.
The centers of tennis balls are rubber and rubber hardens with age.
tennis balls are furry and raquet balls are not . tennis balls are also bigger.
They improved them a lot! If your question would be more specific, it would be easier to answer. The tennis balls used to be wads of hair or wool wrapped in stuff, but now they are more rubbery for bounce. I don't know exactly how.
To play tennis, basically all you need is a racket your size, tennis balls, tennis court shoes and tennis balls. Very Simple.
The polymeric materials in new tennis balls have a higher coefficient of restoration, so they tend to spring back into shape easier. With time and exposure to atmosphere, the compounds that keep the ball soft volatilize and leave into the atmosphere.
The Stars' Tennis Balls has 388 pages.
Slazenger tennis balls are used at Wimbledon.
Tennis Balls
To play tennis.
Yes, as a matter of fact donuts eat an average of 10,000 tennis balls per year. So tennis balls are the prey of donuts. Tennis balls are now extinct and are only made in factories.
Yes there are many tennis courts in England.