German engineers and family members pose in front of the first ever produced diesel engine built by Friedrich Krupp in Essen Germany during the Provisional Exhibition of the German Museum in the old National Museum (today the National Museum for ethnology) in Munich, taken 1912 or 1913 with very left, Dr. Eugen Diesel, 6th from left Mrs. Oscar von Miller, 8th from left, Dr. Rudolf Diesel (inventor of the diesel engine) in front of him stands his wife and 10th from left Oskar von Miller (pioneer for electrifying Germany and hydrodynamic power stations). (AP Photo)