Historical graphic representation, technical drawing, steam engine, piston heat engine, the contained thermal energy or pressure in steam is transformed into mechanical work, Watt's low pressure engine by James Watt, 19th Century, from Meyers Konversations-Lexikon encyclopaedia, 1890.
Historical graphic representation, technical drawing, steam engine, piston heat engine, the contained thermal energy or pressure in steam is transformed into mechanical work, Watt's low pressure engine by James Watt, 19th Century, from Meyers Konversations-Lexikon encyclopaedia, 1890