I enjoyed Brian Cox’s lively tour of sites of scientific discoveries (Travel, 10 March), but there was a glaring omission. The Eagle pub in Cambridge also has a plaque to Rosalind Franklin, a woman who played a significant part in the discovery of the structure of DNA. Young women scientists need to be inspired too.
Rae Street
Littleborough, Greater Manchester
• Following the coverage of Sir Roger Bannister’s achievement (Obituary, 5 March), I wonder if any readers remember that Alf Tupper, the “Tough of the Track” from the Rover comic of my teenage years, actually ran the first four-minute mile in the 1950s. He was timed by a railway employee, who, of course, had a very accurate timepiece.
John O Machin
Calverley, West Yorkshire
• Re Chris Maslanka’s puzzle 2 on 10 March, “a sailor and some potatoes”: even my cat knows that one person cannot eat more than four million potatoes in one day and the answer to the puzzle is “no solution”.
Robin Davies
Horringer, Suffolk
• I learned that China Owls Seldom Deceive Clay Pigeons, They Just Chase Each Other Making Preposterous Puns (Letters, 12 March). Sadly, I no longer remember names of all the geological periods to which they refer.
Penelope Horner
Whitchurch, Hampshire
• On 12 March, there were 20 pages of sport but only half a page referring to the Paralympics. Why is that?
Caroline Bedford
Leeds
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