The traditional cry of "new balls please" at tennis courts throughout the country could become a thing of the past thanks to a new invention by a University of Bath student.
Aimée Cubitt, a final year Mechanical Engineering student, has developed a new device which pumps air into tennis balls to extend their useful life and restore the bounce of old balls.
This is useful because tennis balls start to lose their bounce as soon as they are removed from their container as the pressurised air within their rubber core starts to seep out.