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mnw21cam
on March 13, 2018
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Cora – Kitty Hawk's prototype air taxi [video]
Blast furnaces, heating, other chemical processes.
seanmcdirmid
on March 13, 2018
[–]
Coal isn't used for heating much in the US, if at all. It is sometimes used for metal production, especially on the east coast, but oddly, not on the west, where hydro is used.
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