Is a fart or a burp grosser? And perhaps one of the most divisive, cultural debates of them all: Is a tennis ball yellow or ...

The fluorescent yellow tennis ball, which we all recognize ... when they traveled over white lines or when the balls were getting stained green on the grass. Also read: 'Climate Change Cannot ...

A tennis ball is known and iconic for two features: the yellow colour and the white stripe. Mathilde Wittock eliminated both by hand cutting them at the white line and dying them in beautiful colors.