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Rigorous Science How much blood is needed to forge a sword?

Blood of most vertebrates contains hemoglobin, which contains iron. I've imagined a world where someone once had a seemingly stupid idea of using blood as a source of iron. Now, the world is analo...

2 answers  ·  posted 7y ago by Neith‭  ·  last activity 5y ago by Neith‭

Question biology biochemistry