Diesel Published 5 November 2024 at 734 × 403 in Unanswered Questions: Churchill and Rudolf Diesel / Next → Meeting of great minds: Rudolf Diesel (left) with Thomas Edison (seated) in Edison’s Menlo Park laboratory, with (from left) Ellen Rice, Edison engineer J.W. Lieb Jr. and Martha Diesel, 1912. (U.S. National Park Service, public domain) Share this article: