{
  "annotation_id": "047e0d1d-78d7-4599-af28-66b19e1f57b0",
  "date_created": "2026-03-02T18:00:56.885000Z",
  "date_modified": "2026-03-02T18:00:56.885000Z",
  "file_hash": "f0f3b5f985e30cf7a6f8cf41f3ba9ead3e0888634fc12b72e2feb47e3ecffe1c",
  "private": false,
  "record": {
    "abstract": "The double-cone ascending an inclined V-rail is a common exhibit used for\ndemonstrating concepts related to center-of-mass in introductory physics\ncourses. While the conceptual explanation is well-known--the widening of the\nramp allows the center of mass of the cone to drop, overbalancing the increase\nin altitude due to the inclination of the ramp--there remains rich physical\ncontent waiting to be extracted through deeper exploration. Such an\ninvestigations seems to be absent from the literature. This article seeks to\nremedy the omission.",
    "arxiv_id": "physics/0501135",
    "authors": [
      "Sohang C. Gandhi",
      "Costas J. Efthimiou"
    ],
    "categories": [
      "physics.class-ph"
    ],
    "doi": "10.1088/0143-0807/26/5/002",
    "journal_ref": "European Journal Physics 26 (2005) 681",
    "title": "The Ascending Double-Cone: A Closer Look at a Familiar Demonstration",
    "url": "https://arxiv.org/abs/physics/0501135"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4434c243-2eb7-4a83-865f-6f0590102dd6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}