Travel experts have explained why window blinds on a plane must be kept open on take-off and landing.
When on a long flight, a number of questions may come to mind, such as 'Why are there small holes in the windows ' and 'Where is the best place to join the mile high club?'
Another, completely understandable query passengers may have relates to the shutters on the windows, and flight attendants' demands that they must be kept up at certain times.
