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Engineers Just Made Concrete 30% Stronger. The Secret Ingredient? Coffee.
(www.popularmechanics.com)
this post was submitted on 25 Aug 2023
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I wish they had a bit about that in the article itself, but they did link another article about biochar creation and its byproducts. I linked it in another comment here.
I feel there's a lot of assumptions here that no one actually reads articles.
Most of us are from reddit and unfortunately that "jump to the comments to argue" mentality seems to have followed a lot of us.
For example, I haven't read the article. Just clicked into the comments to see what it was, found out it was coffee.
I'll go read it now.
I'm back, the other linked USDA article about pyrolysis is fascinating. It's not really clear on how much energy the process takes but they did mention it could (possibly) be self-sustaining. Really cool stuff!