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CSMastermindyesterday at 10:34 PM3 repliesview on HN

He was just mentioned on today's Lateral podcast with Tom Scott.

Apparently, he's the reason tennis balls are yellow.

I guess they were traditionally white but when they started broadcasting matches on TV it was too hard to see the ball.

David who was at the BBC at the time suggested they use yellow balls instead so they would come through on camera. Ever since then tennis balls have been yellow.


Replies

wvbdmpyesterday at 11:46 PM

Amazing. It’s relatively easy to find color photos of this, for example one of the very last pics here, from 1970: https://www.esquire.com/sports/g36954688/wimbledon-1970s-pho...

But what is the oldest color photo of white ball tennis?

Also, do we have a good source for this story, because it’s not mentioned on Wikipedia: ”In 1972, the International Tennis Federation introduced yellow balls, as these were easier to see on television. Wimbledon continued using white balls until 1986.”

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cody_ellinghamyesterday at 11:49 PM

What do you mean tennis balls are yellow? I always thought they were green? https://en.wikipedia.org/wiki/Tennis_ball#/media/File:Closeu...

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burlesonayesterday at 10:55 PM

Mind blown. Thanks for sharing!