Does red sky at night really mean that the next day’s weather will be fine? David Cole/Alamy Stock Photo
Poetic prediction “Red sky at night, shepherds’ delight; red sky in the morning, shepherds’ warning”. Putting aside the occupation of the observer, is there any truth in this adage? If so, why is it true? Richard Kubiak, Pen-y-cae-mawr, Monmouthshire, UK
Come clean What is the difference between shampoo and shower gel and, if so, what is it? Sam Wong, London, UK
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