Re your article on racist “microaggressions” (Most foreign doctors in NHS face ‘racist microaggressions’, survey shows, 8 November), one definition of “micro” is “very small, discernible only by microscopic examination”. I’m surprised anyone considers that foreign doctors who have “patients refusing to be treated by them or having their abilities doubted because of their skin colour” are experiencing such an almost invisible level of racism.
Paul Keleher
London
• Jane Low (Letters, 7 November) is disappointed that the Dinorwig power station’s visitor centre in north Wales is closed. Perhaps she could visit the Cruachan power station in Argyll. It is a pumped-storage hydroelectric plant located inside a mountain. It opened some 19 years before Dinorwig and its visitor centre is also still open.
Andrew Tudor
Emeritus professor, University of York
• Ironic that “energy” drinks containers make up most litter on footpaths (Litter blighting UK footpaths with Lucozade bottles most often found, says study, 8 November). So rather than “giving you wings”, Red Bull actually leaves you without the strength to carry a tin to a bin.
Alan Stone
Yarmouth, Isle of Wight
• I loved sandwich spread as a child (Letters, 7 November). It made a change from Shippam’s beef paste. Then again, I’m from the north and enjoyed anything that tasted of vinegar.
Linzi Banks
Kenilworth, Warwickshire
• We can only hope that the Guardian’s inability to tell a gerbil from a rat (Corrections and clarifications, 6 November) is not shared by voters at the next general election.
Ian Short
London
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