The minutes before and after the Armistice that ended the First World War at 11am on 11 November 1918 were recorded in an image showing artillery activity on the American front near the River Moselle.

It's a fascinating record of one moment at the close of the First World War but how did the technology behind this image actually work?

A re-imagining of what the end of the First World War sounded like, based on the sound ranging tape featured in this video, was part of the Making a New World season at IWM London.