To paraphrase Billy Connolly, there is something that definitely sounds windswept and interesting about the dream of sailing the seven seas. Certainly Mrs Connolly seems to have thoroughly embraced the idea, if her recent biography is anything to go by. But have you ever thought of just what are the seven seas? I was reminded of this recently when my 9 year old daughter asked me this question after watching the Pirates of the Caribbean and having named the oceans (that I knew) she quickly pointed out that it didn’t tally up to seven. This glaring lack of knowledge …