This on the BBC website in response to news of the return of “The Krypton Factor”, which used a “K” as its symbol.

I’m excited about TV’s toughest quiz, The Krypton Factor, coming back, next year. Or The Potassium Factor, as I and my friends used to call it, K being the symbol for potassium, not krypton.
Bob Peters, Leeds, UK


I love a bit of scientist geekery.