From Gabriel Carlyle, St Leonards-on-Sea, East Sussex, UK
We are urged to try the writing of philosophers, such as the “impeccable logic” of Bertrand Russell, as a remedy for poor fact-checking in popular science books. Turning to Russell’s 1948 book Human Knowledge: Its scope and limits, we read that “helium… has a nucleus consisting of four protons and two electrons” (Letters, 7 December).
