The development of powered machines is, in a sense, the history of the forces that powered them. It is in fact inextricably linked to technological progress and social change in general – as the "driving force" behind it. The exhibition shows various types of machines in chronological order. It starts with machines powered by muscular strength, wind or water and continues through to the latest high-performance inventions. Steam engines are represented by the full-scale replica of James Watt's machine and the first precision valve steam engine built by Gebrüder Sulzer. Other highlights are the first mass-produced Otto engine (1876/77) and the first engine by Rudolf Diesel (1897). Steam, water and gas turbines are also exhibited, up to and including modern jet turbine engines.