{
  "export": {
    "source": "https://urth.darkrealm.vip/thread/urth/3093",
    "note": "Exported from an unofficial mirror of a public mailing list. Copyright in each message remains with the person who wrote it.  Email addresses are obscured as `user at host`, the form the original archive published. This file was rebuilt from parsed fields rather than retained headers, so it is faithful in content but not byte-exact.",
    "addresses": "obscured as 'user at host'"
  },
  "archive": "urth",
  "thread": {
    "id": 3093,
    "subject": "gy=c",
    "messages": 1,
    "voices": 1,
    "first": "2002-03-26T12:51:11+00:00",
    "last": "2002-03-26T12:51:11+00:00"
  },
  "messages": [
    {
      "message_id": "<urth-v0203-453@digest.urth.net>",
      "from": {
        "name": "Andy Robertson",
        "address": "andywrobertson at clara.co.uk"
      },
      "date": "2002-03-26T12:51:11+00:00",
      "subject": "(urth) Re: gy=c",
      "in_reply_to": null,
      "reply_link": null,
      "blocks": [
        {
          "kind": "text",
          "depth": 0,
          "text": "----- Original Message -----"
        },
        {
          "kind": "quote",
          "depth": 1,
          "text": "From: <matthew.malthouse at guardian.co.uk>\nA question.\n\nThe Whorl of the Long Sun produces a facsimilie of gravity through spin.\nOtherwise when we see it there is no other acceleration.  Is there (and I\nask because I can't remember) any mention of how the Whorl behaved when\ntraveling?"
        },
        {
          "kind": "text",
          "depth": 0,
          "text": "No mention.\n\nA good equation to remember for astrogation is\n\ngy = c\n\nIf you accelerate at 1 gravity for 1 year you reach the speed of light - or\nwould if not for relativistic effects.\n\n\nI doubt the Loganstone could manage more an 1/100 g acceleration.  Even that\nwould \"raise\" the front end miles above the back end, in effect.\n\nIt's a big problem, but it is not a significantly bigger problem for a round\ntrip.\n\nMaybe it was cone shaped?\n\n\n    hartshorn"
        }
      ]
    }
  ]
}