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  "path": "/26/04/the-brennan-self-balancing-monorail",
  "publishedAt": "2026-04-16T15:36:00.000Z",
  "site": "https://kottke.org",
  "tags": [
    "a self-balancing train that ran on a single track",
    "This video",
    "messy nessy",
    "engineering",
    "inventions",
    "Louis Brennan",
    "physics",
    "science",
    "trains",
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  "textContent": "This is so cool: in the early 1900s, a mechanical engineer named Louis Brennan invented a self-balancing train that ran on a single track. This video demonstrates how the train worked using a clever system of gyroscopes.\n\n> This is the Brennan Monorail, a train from the early 1900s that seemed to defy the laws of physics. Not only did it keep itself perfectly balanced on a single rail, but it mysteriously leaned into corners without any driver input.\n\nIt’s kind of incredible how well Brennan’s system worked. It’s ingenious. (via messy nessy)\n\n**Tags:** engineering · inventions · Louis Brennan · physics · science · trains · video",
  "title": "The Brennan Self-Balancing Monorail",
  "updatedAt": "2026-04-16T15:36:00.000Z"
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