steam power steam power History 17th century 17th century 17th century 17th century first commercial steam-powered water pump steam power 17th century Live Science 17th century 1712 and 1776 Live Science 17th century en “sannhet” med betydelige modifikasjoner steam power LiveScience - Who Invented the Steam Engine? James Watt 1712 und 1776 Palermo 1712 and 1776 the Industrial Revolution steam engine