{
  "annotation_id": "2aa4c82a-a951-4364-8fed-6598bd291c86",
  "date_created": "2026-03-02T18:01:18.537000Z",
  "date_modified": "2026-03-02T18:01:18.537000Z",
  "file_hash": "2b77dfd837ed1ba6382f9d51652f3197fed080a8a2eaa5dd4e718d38a85dbc80",
  "private": false,
  "record": {
    "abstract": "This is the first paper by Gunnar Nordstr{\\\"o}m (1881--1923) on his five\ndimensional theory. In his summary he states: \u0027\u0027It is shown, that a unifying\ntreatment of the electromagnetic and gravitational fields is possible, if one\nconsiders the four dimensional spacetime world to be a surface in a five\ndimensional world.\u0027\u0027 This paper was followed by two other papers written by the\nGunnar Nordstr{\\\"o}m during the one year period 1914--1915, on the same\nsubject, which are also made available here.",
    "arxiv_id": "physics/0702221",
    "authors": [
      "Gunnar Nordstr\u00f6m"
    ],
    "categories": [
      "physics.gen-ph",
      "physics.hist-ph"
    ],
    "journal_ref": "Phys.Z.15:504-506,1914",
    "title": "On the possibility of unifying the electromagnetic and the gravitational   fields",
    "url": "https://arxiv.org/abs/physics/0702221"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2241e25b-3e74-476d-a637-fcd25e216970",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}