Strangely, as I was filling in the 22 page form that should hopefully allow me to claim my UK state pension later this year, a memory of my previous working life popped into my head.
In the early 1970s I was working at Heathrow Airport for British Airways, which had just been created by the merger of BOAC and BEA. Although I worked in the Queens Building in the airport's central area I often had to visit offices out in the engineering section on the edge of the airport.
One of these buildings had a paternoster lift which I had to use - very reluctantly. If you have ever seen one of these you may appreciate that it was a little daunting, having to judge your timing in order to jump in then jump out at the right moment when you wanted to get off.
I found this short video which explains how they work, and shows a group of young students who still have the opportunity to use one of the last remaining paternosters in the UK.