Tennis balls are designed to have a consistent bounce and firmness in order to ensure a fair game. The unique design of the tennis ball means that it does not have a hole for re-inflating like many other balls, such as footballs, basketballs and rugby balls. This is because the hole would reduce the pressure within the ball, resulting in a lower bounce. The material of the tennis ball is also important – it must be able to withstand the pressure of the air inside, as well as being able to rebound off the court surface. Keywords: Tennis balls, Re-inflating, Bounce, Firmness, Pressure.
View MoreLa Marquise is a famous French opera by composer André Grétry. It is the story of a Marquise who has to choose between being faithful to her husband and succumbing to the advances of a powerful minister. The opera was first performed in 1774 and is considered to be one of the most successful of its time.
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