Watt's Steam Engine
James Watt's separate condenser patent of 1769 — improving on Thomas Newcomen's atmospheric engine of 1712 — marks the critical breakthrough of the Industrial Revolution. Watt's design dramatically reduced fuel consumption (from 25 to 5 lb of coal per horsepower-hour) and, with his 1782 rotary motion patent, enabled the engine to power factories, mills, and eventually railways and steamships. Working with industrialist Matthew Boulton at the Soho Manufactory in Birmingham, Watt produced 496 engines by 1800. The steam engine broke the fundamental constraint of pre-industrial economies — the dependence on human and animal muscle, wind, and water — and initiated a transformation in productive capacity without historical precedent. Watt's relationship with Boulton, Josiah Wedgwood, Erasmus Darwin, and Joseph Priestley in the Lunar Society of Birmingham represents the creative fusion of natural philosophy, entrepreneurship, and craft that made the Industrial Revolution British.
- Year: 1769 CE
- Category: Scientific
