At the Vienna Museum of Technology, I viewed many interesting displays. One display I found particularly interesting was the vertical Diesel engine with a DC generator. I was aware that Diesel engines were more efficient than other engines in the locomotive industry but I did not know by how much. By reading this display, I was better educated on why the locomotive industry switched to diesel powered engines. The Diesel engine was 33% efficient compared to the 14% for the triple expansion steam engine. The Diesel engine ran smoother, as it was jolt-free. It's high speeds made it highly suitable for running generators. The Diesel engine was a better choice for within residential areas due to that the amount of exhaust gas and combustion residue was comparatively small. Also, Diesel oil is a relatively flame-retardant fuel. There were many other exhibits that taught me various facts about science and technology. Overall, the museum was a very good learning experience.