• verstra@programming.dev
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    1 month ago

    These are so simple and yet so clever. When i noticed them the first time i started noticing them everywhere (on all rail infrastructure).

    • RubberElectrons@lemmy.world
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      1 month ago

      I as well. Seattle transit, NEC Amtrak and NJ transit live off of these. If these systems work for them, they’ll work for us all

    • someacnt_@lemmy.world
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      30 days ago

      Is it simple? It looks quite complicated, but maybe that’s just me forgetting how to compute forces.

      • Swedneck@discuss.tchncs.de
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        30 days ago

        simple in that it’s just a clever series of wires and pulleys, not some sort of digital adjustment device, i suppose

        • verstra@programming.dev
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          30 days ago

          Also, you are looking at a few different wires at once here. Each separate wire is tensioned with a mechanism with a few moving parts.