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Steam Injection into IC Engines to Suppress Knock - my University Thesis Discovery in 1976

Somehow, about 45 years ago, I was accepted into University College London (UCL) to study Mechanical Engineering. My A Levels were Maths, Physics and Chemistry, because I was less worse at these subjects than I would have been had I chosen others. Put them into a subject mincer, sprinkle on single-minded paternal advice (my dad was a great engineer), and out popped Mech Eng as my passport to a career. It wasn't long before I realised that I was never going to be a career engineer, but I persevered and scraped into my final year where I encountered two novel features of the UCL course. Firstly that I could choose to add subjects that had little to do with engineering - so I studied stuff like Law, Psychology and the History of Technology. And secondly I had to do a dissertation on a project proposed by one of my professors. The project I chose was titled "Steam injection into an internal combustion (IC) engine to suppress the onset of pre-detonation with unleaded fuel". ...