Tennis star Iga Swiatek has spoken after her meltdown that made her every ball kid’s worst nightmare. “I expressed ...

It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation ...

What are tennis balls made of? Modern tennis balls are made of a hollow rubber core, covered in a wool or nylon shell which is known as the nap. Pressurised air inside the rubber core makes the ball ...

Now, picture the nitrogen and oxygen molecules as tennis balls and the light as heaps of marbles. When one of those light marbles hits a nitrogen or oxygen tennis ball, the tennis ball “eats ...