
Why is it only ever chalk that's used on snooker cues?
When it comes to getting the right balance between soft and abrasive, chalk is the perfect material for snooker cues.
Asked by: Mike Brown, Liverpool
Chalk remains the material of choice because its properties are so uniquely suitable for preventing the cue from slipping on the ball. Chalk is sufficiently soft to rub on to the leather tip, but also abrasive enough to slightly scratch the tip so it retains the chalk and makes good contact with the ball.
Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.
Authors
Subscription offer
Subscribe and try your first 3 issues for just £5. After your introductory period you will pay just £22.99 every 6 issues by Direct Debit. Receive every issue delivered direct to your door with FREE UK delivery.