Do all wind turbines rotate in the same direction? If so, why?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts

Do all wind turbines rotate in the same direction? If so, why? Rab Spence, by email

Post your answers (and new questions) below or send them to nq@theguardian.com. A selection will be published next Sunday.