This is the first film in a four-part educational series exploring the workings of the internal combustion engine. It explains the four-stroke cycle of a petrol engine using cutaway models and animated sequences. #Shell #ShellFilmUnit #HistoricFilmArchive #documentaryfilmmaking #lubrication #engineering #History #1980s --- 🎥 Discover Shell’s Historic Film Archive! 🎥 Since 1934, Shell’s Film Archive has captivated audiences with films on technology, science, engineering, craftsmanship, motorsport, and travel. The celebrated Shell Film Unit, part of Britain’s Documentary Movement, featured key figures like Jack Beddington and John Grierson. These films, often shown in cinemas and educational venues, ranged from Shell’s technological innovations to general public education. During WWII, the unit produced vital training films for the Ministry of Information. Today, Shell’s Creative Solutions team continues this legacy, creating award-winning content for social media. 📧 For mor...