The tennis racket is a deeply personal piece of equipment — an interface between the player and ball that can complete a player’s game or challenge the player to make an adjustment. During its ...

Although battery powered tennis rackets have been outlawed by the International Tennis Federation, the use of piezoelectrics that themselves generate power have been employed as the most recent ...

Sport may be mostly a matter of muscle, but a little science sometimes goes a long way. A 17-ft. pole vault is common enough today, but was utterly inconceivable before the invention of the ...