{
  "annotation_id": "fd192eab-b4c8-4aff-aeca-64da8cddd453",
  "date_created": "2026-03-02T18:01:14.460000Z",
  "date_modified": "2026-03-02T18:01:14.460000Z",
  "file_hash": "db7b7cf3cf85bbea0090eb63ec890a5117d51407c9af3c3639eceef3e6385bb8",
  "private": false,
  "record": {
    "abstract": "A uniform, flexible and frictionless chain falling link by link from a heap\nby the edge of a table falls with an acceleration $g/3$ if the motion is\nnonconservative, but $g/2$ if the motion is conservative, $g$ being the\nacceleration due to gravity. Unable to construct such a falling chain, we use\ninstead higher-dimensional versions of it. A home camcorder is used to measure\nthe fall of a three-dimensional version called an $xyz$-slider. After\nfrictional effects are corrected for, its vertical falling acceleration is\nfound to be $a_x/g = 0.328 \\pm 0.004$. This result agrees with the theoretical\nvalue of $a_x/g = 1/3$ for an ideal energy-conserving $xyz$-slider.",
    "arxiv_id": "physics/0612250",
    "authors": [
      "Chun Wa Wong",
      "Seo Ho Youn",
      "Kosuke Yasui"
    ],
    "categories": [
      "physics.class-ph",
      "physics.hist-ph"
    ],
    "doi": "10.1088/0143-0807/28/3/001",
    "journal_ref": "Eur. J. Phys. 28 (2007) 385-400",
    "title": "The falling chain of Hopkins, Tait, Steele and Cayley",
    "url": "https://arxiv.org/abs/physics/0612250"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "27e63d7f-6d10-4d4f-9d6e-ca8800c6a156",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}