Rudolf Christian Karl Diesel (,<!--If you have a novel theory about this transcription or about the epistemology of transcriptions generally, please take it to Merriam-Webster first, a WP:RS that agrees with "", before coming back here.--> ; 18 March 1858 – 29 September 1913) was a German inventor and mechanical engineer who is famous for having invented the Diesel engine, which burns Diesel fuel; both are named after him. Wikipedia
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