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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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Bio Char vs Charcoal: 6 Key Differences
Similar, but more refined process to achieve specific characteristics in the end product, like oil>kerosene>diesel>gasoline.
This article hints at a lot of interesting things, but doesn't really go into any of them. I've learned a lot trying to answer the comments here.