Tim Urban on X: "So tennis balls slightly greenish yellow, but much closer to yellow than green! The “tennis balls are green” people are like the “one drop of blood” old school
![Happy birthday Sir David Attenborough, (born OTD 1926) my favourite obscure fact about Attenborough is the one about how he's the reason we have yellow Tennis balls instead of white ones (like Happy birthday Sir David Attenborough, (born OTD 1926) my favourite obscure fact about Attenborough is the one about how he's the reason we have yellow Tennis balls instead of white ones (like](https://external-preview.redd.it/happy-birthday-sir-david-attenborough-born-otd-1926-my-v0-1KkBx8UmkhRs8i3T_nuMiuljAEeM4hNmD69KBwrAbLI.jpg?auto=webp&s=95b69179f2da541aba53c130b1d4e0beaccae47e)
Happy birthday Sir David Attenborough, (born OTD 1926) my favourite obscure fact about Attenborough is the one about how he's the reason we have yellow Tennis balls instead of white ones (like
Why do some people perceive a tennis ball, which is yellow by the sport's rules and regulation, as being green? What makes some people think the ball has a greenish hue as
![What color IS a tennis ball? Internet divided over yellow or green hue as debate sparks on social media - and even Roger Federer has weighed in | Daily Mail Online What color IS a tennis ball? Internet divided over yellow or green hue as debate sparks on social media - and even Roger Federer has weighed in | Daily Mail Online](https://i.dailymail.co.uk/1s/2023/08/09/22/74144061-12390761-image-a-15_1691616127966.jpg)