{
  "annotation_id": "fea1f3c0-79eb-4642-88d0-d4a335b9a310",
  "date_created": "2026-03-02T18:01:00.593000Z",
  "date_modified": "2026-03-02T18:01:00.593000Z",
  "file_hash": "c9b7e7699dbdb74662eaac656c341e07c46d88466cf709f4432a60e2f415a9da",
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  "record": {
    "abstract": "The main purpose of this paper is to seek a mechanical interpretation of\ngravitational phenomena. We suppose that the universe may be filled with a kind\nof fluid which may be called the $\\Omega (0)$ substratum. Thus, the\ninverse-square law of gravitation is derived by methods of hydrodynamics based\non a sink flow model of particles. The first feature of this theory of\ngravitation is that the gravitational interactions are transmitted by a kind of\nfluidic medium. The second feature is the time dependence of gravitational\nconstant $G$ and gravitational mass. Newton\u0027s law of gravitation is derived if\nwe introduce an assumption that $G$ and the masses of particles are changing so\nslowly that they can be treated as constants.",
    "arxiv_id": "physics/0506062",
    "authors": [
      "Xiao-Song Wang"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "journal_ref": "Progress in Physics, 2008, Vol. 4, 25-30",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Derivation of Newton\u0027s law of gravitation based on a fluidic continuum   model of vacuum and a sink flow model of particles",
    "url": "https://arxiv.org/abs/physics/0506062"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "90b0045b-cf1a-4fe2-b60f-cc2d2862f2ae",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}