Comment on Pens in Space

• NuraShiny@hexbear.net ⁨3⁩ ⁨weeks⁩ ago

  There is no way either side used lead pencils. Saying lead is in pencils is a very outdated thing, it’s all graphite these days.

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  • xor@lemmy.dbzer0.com ⁨3⁩ ⁨weeks⁩ ago

    it hasn’t been graphite for while now either….

    pencil lead

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    • Vespair@lemm.ee ⁨3⁩ ⁨weeks⁩ ago

      Chalk isn’t chalk?

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      • Arcka@midwest.social ⁨3⁩ ⁨weeks⁩ ago

        Regular chalk is calcium carbonate. Crayola’s website says their sidewalk chalk uses calcium sulfate (gypsum as an ingredient in plaster of paris).

        So they’re both calcium salts.

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      • xor@lemmy.dbzer0.com ⁨3⁩ ⁨weeks⁩ ago

        no

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  • Andromxda@lemmy.dbzer0.com ⁨3⁩ ⁨weeks⁩ ago

    A sharp piece of graphite from a broken pen is not something you would want in your eyes either

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