During the recent university Boat Race, my wife and I were discussing the colour of the Cambridge crew’s kit along the lines of: it’s not blue, it’s green; no it’s not green, it’s blue. It turns out we were both wrong. It’s olo (Hue new? Scientists claim to have found colour no one has seen before, 18 April). There’s nothing new under the sun.
John Cater
Wimbledon, London
• US scientists: “We’ve found an unprecedented colour signal.” Me: “Oh, that’s the colour of a waterproof jacket I’ve just ordered.”
Anne Cowper
Bishopston, Swansea
