• @[email protected]
    5•7 days ago

    TLDW: skipped through until 25:47: the rail doesnt lengthen it just extends to the tops and sides.

    That isn’t really true though. He never talked about ‘sun kink’ which is a thing. Apparently mostly due to poor ties and bedding.

    There’s a neat discussion I found on some forum

    So it appears the topic wasn’t able to be covered fully in 30 minutes, let alone 5. But I do agree he adds a lot of fluff and it gets annoying. The thermite manufacturing guy needs a channel.

    • @[email protected]English
      1•7 days ago

      Yeah in Melbourne several years back we had a heat wave that fucked up a bunch of the train tracks.

      Isn’t the thunk-thunk as you’re travelling the wheels of the carriage passing over the expansion joints?.

      • @BangCrash
        2•6 days ago

        You should probably watch the video. It’s informative and answers your question.

      • @[email protected]English
        4•7 days ago

        Nowadays there are no thermal expansion joints, the rails are welded. Any thunk thunk left is at switches.