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Here are some points of divergence concerning the invention and development of the propulsion engines (other than the steam engine). Stirling engines, combustion engines, electric engines, etc. All POD entries are sorted as chronologically as possible.

Plausibility check: WI Stirling Engine invented during the Renaissance ?

Plausibility check: Stirling Engine invented in the early modern era

Could the Stirling Engine have been used rather than the Otto Engine ?

Plausibility check: Trains with Stirling Engines ?

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Earliest possible internal combustion engines ?

WI: Internal combustion engine never invented, but electric and steam engines still exist

WI: Ethanol vehicles the norm from early on ?

WI: No lead gasoline

DBWI: Gasoline cars still used ?

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WI: Internal combustion engine never invented, but electric and steam engines still exist

WI the Ford Model T was electric ?

Hybrid cars in the 90s ?

WI: ZEV Mandate followed

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Challenge: Renewables-fueled Industrial Revolution

If Babbage's Analytical Engine had been made, what could it have done ?

Challenge: Motor vehicles powered by turbine engines more widespread (since the 1950s/1960s)

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Points of Divergence : Steam Engines

Points of Divergence : Electricity

Points of Divergence : Transport and Vehicles

Points of Divergence : Industrial Revolution

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