In September, we blogged about unearthing some historical films in our archive. Since then, we’ve been able to digitise the footage and investigate further.
One of the films is now on YouTube. “The Progression Of The Tides” is a film made by the Liverpool Tidal Institute some time in the 1960s. An educational film, it explains how the sea level around the UK changes over the course of the semi-diurnal tidal cycle. Below are screenshots from the video.