{
  "annotation_id": "b9a69dd9-9ab0-4b29-8a22-aefb99a5fdc8",
  "date_created": "2026-03-02T18:01:24.041000Z",
  "date_modified": "2026-03-02T18:01:24.041000Z",
  "file_hash": "1e1118203aa39e9635e6d16fee65baf82581d0be1813fb9296153a4f0b1cf98d",
  "private": false,
  "record": {
    "abstract": "The conventional discussion of apparent distortions of space and time in\nSpecial Relativity (the Lorentz-Fitzgerald Contraction and Time Dilatation) is\nextended by considering observations of : (i) moving objects of limited\nlifetime in their own rest frame (`transient luminous objects\u0027) and (ii) a\nmoving extended array of synchronised `equivalent clocks\u0027 in a common inertial\nframe. Application of the Lorentz Transformation to (i) shows that such\nobjects, viewed with coarse time resolution, appear to be longer in the\ndirection of the relative velocity $\\vec{v}$ by a factor $1/\\sqrt{1-(v/c)^2}$\n(Space Dilatation) and to (ii) that the moving equivalent clock that appears at\nany fixed position in the rest frame of an inertial observer appears to be\nrunning faster than a similar clock at rest by the factor $1/\\sqrt{1-(v/c)^2}$\n(Time Contraction).\n  The actual appearance of moving objects and clocks, taking into account light\npropagation time delays, as well as the effect of the Lorentz Transformation,\nis also discussed.",
    "arxiv_id": "physics/9902048",
    "authors": [
      "J. H. Field"
    ],
    "categories": [
      "physics.pop-ph",
      "physics.class-ph"
    ],
    "journal_ref": "Proceedings of the XX Workshop on High Energy Physics and Field\n  Theory, Protvino, Russia, June 24-26 1997, P214",
    "title": "Space Time Measurements in Special Relativity",
    "url": "https://arxiv.org/abs/physics/9902048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2fe9147b-a329-4cd5-9bba-80e057110802",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}