What is steel? Why is it so hard to make? And how did it come to be everywhere around us, though it was once considered a gift of the gods?https://rootsofprogress.org/iron-from-mythical-to-mundane …
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http://museumofeverydaylife.org/exhibitions-collections/current-exhibitions/visual-history-of-the-pencil … I had stumbled upon this some months ago. This was before I found your corner of the internet! Hope it helps you start! Cheers!
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