Water wheels harness rivers
Greek and Roman water wheels convert flowing water into rotary work for milling grain. Source — Wikipedia:
Greek and Roman water wheels convert flowing water into rotary work for milling grain. Source — Wikipedia:
Han-dynasty engineer Du Shi (杜诗, Dù Shī) drives metallurgical bellows with a water wheel, an early industrial prime mover. Source — Wikipedia:
Hero of Alexandria builds the aeolipile, a spinning steam device — the earliest known steam-powered machine. Source — Wikipedia:
Vertical-axis windmills in Persia grind grain using wind, among the world’s oldest working windmills. Source — Wikipedia:
Al-Jazari describes the crankshaft and camshaft, mechanisms central to later engines. Source — Wikipedia:
Song (宋) - dynasty China deploys fire-arrows — gunpowder rockets — the ancestors of rocket propulsion. Source — Wikipedia:
James Watt’s separate condenser makes steam power efficient enough to drive the Industrial Revolution. Source — Wikipedia:
Nikolaus Otto’s four-stroke cycle becomes the basis of the internal-combustion engine. Source — Wikipedia:
Rudolf Diesel patents the efficient compression-ignition engine that powers heavy transport. Source — Wikipedia:
Robert Goddard launches the first liquid-fuelled rocket, building on Tsiolkovsky’s theory. Source — Wikipedia:
Hans von Ohain’s engine powers the Heinkel He 178; Frank Whittle independently develops the jet in Britain. Source — Wikipedia: