20th July 1807: The world’s first internal combustion engine is patented in France
Nicéphore Niépce had fled France during the Revolution as he was the son of a wealthy lawyer who was suspected of having royalist sympathies. He later returned to France where he served in Napoleon’s army before resigning on health grounds and becoming the Administrator of the district of Nice.
By 1801 Niépce and his older brother Claude had returned to manage the family’s estate while conducting scientific research. It was here that they developed their internal combustion engine, which harnessed the power of hot air expanding during an explosion. Their first fuel was lycopodium powder, made of dried plant spores, which was ignited inside the airtight copper machine.
The brothers presented their internal combustion engine in a paper to the French National Commission of the Academy of Science in 1806. However, the engine’s major test came in 1807 when it was installed on a boat on the river Saône. Small amounts of fuel were released into a jet of air provided by mechanical be
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