I often wonder how much the 'LOL, ancient people were dumb and didn't understand anything' reaction because our sources are mostly written by leisured elites instead of artisans. Imagine how our metallurgy would look if you made the average senator describe modern steelworking.
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Vastauksena käyttäjälle @BretDevereaux
The knowledge to produce Roman concrete was essentially lost for 2,000 years—seems plausible
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Vastauksena käyttäjille @ianawren ja @BretDevereaux
It wasn't that the knowledge was lost but the trade network was, it became impossible to get the ingredients in any quantity.
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I thought we still weren’t able to recreate their version?
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Vastauksena käyttäjille @hogster, @OneGravitas ja
That is a myth. The recipe is given in De Architectura, published in 25 AD, and rediscovered in 1414. https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Vitruvius/2*.html#5.1 …
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Vastauksena käyttäjille @DeHumanitas, @hogster ja
Maybe it isn’t the best example—that there’s a recipe disproves my initial point. Roman concrete was very much intended for the use of the “leisured elites” and at that scale they would have to have some sort of replicated and disseminated instruction. Maybe Damascus steel?
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Vastauksena käyttäjille @ianawren, @DeHumanitas ja
In that case the loss was maybe because they didn't know enough about what they were doing. It requires specific trace elements, present in some iron ores. Theory is that the mine the smiths were using ran empty and they didn't have the knowhow to ID a replacement.
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Vastauksena käyttäjille @OneGravitas, @ianawren ja
This is Buchwald's argument about Noric steel. The issue I have here is that I don't see any real indication that Roman period steel swords were dramatically metallurgically superior to, say, early or high medieval steel swords.
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And it is certainly not the case that they were only making steel in Noricum. The Romans used quite a lot of steel; we even have some clearly intentionally carburized (read: steel) nails from Roman sites. So it's still not quite 'lost.'
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