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Re:Why wasn't the steam engine invented earlier? Part II by notahacker on Friday July 15, 2022 @09:55AM (#32108241)
> It's not every day you see an internal combustion engine on a kite.

Yup. The engine was more important than the understanding of the principles of propulsion too: even if the four forces had been identified by Aristotle, that wouldn't have been much use in achieving sustained powered flight to civilisations whose closest approximation of a propellor powered by a turbine engine was a waterwheel.

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