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A comment on Epistemic standards for “Why did it take so long to invent X?”. Parent comment

Re:Epistemic standards for “Why did it take so long to inven... by n4r9 on Sunday March 01, 2020 @09:52PM (#22461225)
The idea for using steam to create motion of some kind existed since the ancient Greeks: https://en.wikipedia.org/wiki/Aeolipile

But you're right, to make it practically useful required better materials.

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Re:Epistemic standards for “Why did it take so long to inven... by fernly on Sunday March 01, 2020 @10:04PM (#22461276)
The aeolipile was literally the first item discussed in the OP.
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