For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some ‘organic element’ since I couldn’t accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.

    • Urist@lemmy.ml
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      1 year ago

      From Wikipedia on bones:

      Bone matrix is 90 to 95% composed of elastic collagen fibers, also known as ossein,[5] and the remainder is ground substance.[6] The elasticity of collagen improves fracture resistance.[7] The matrix is hardened by the binding of inorganic mineral salt, calcium phosphate, in a chemical arrangement known as bone mineral, a form of calcium apatite.[9]

      So the statement is a bit faulty, not only because of the relative low amount of calcium in our bones, but also because it appears as a mineral. We distinguish between salts and metals because of their chemical properties being quite different (solubility, reflectiveness, electrical conductivity, maleability and so on).

      Edit: I do realize the point of the comment was not to be entirely factual, so if I am allowed as well I would say science is pretty metal.

      • Adalast@lemmy.world
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        1 year ago

        We also distinguish between metals and non-metals by field of study. Ask an astronomer which elements are metals sometime.

      • 018118055@sopuli.xyz
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        1 year ago

        Thanks for the reality injection!

        The statement was glib but even the partial truth of it made me wonder when I first learned it.

    • gonzo0815
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      1 year ago

      By the sound mine make I would have thought free jazz.