• realitista@lemm.eeOP
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      3 days ago

      That’s impossible. How can it be that small?!? They list the same dimensions regardless of which size spool you choose.

      • ladicius@lemmy.world
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        3 days ago

        I work in telecommunication and see fiber quite regularly.

        It really is thin, and fine is a better word. In general what you see is the coating of the fiber, and that already is very fine. The fiber itself is nearly invisible even when you hold a strand between your fingers against the light.

        A single of these nearly invisible fibers can transport a GBit/s into your home. “Any sufficiently advanced technology is indistinguishable from magic” - yep, Arthur C. Clarke was right.