{
  "annotation_id": "cc186b92-4de6-46bf-99d1-e8d6172e5efa",
  "date_created": "2026-03-02T18:00:43.216000Z",
  "date_modified": "2026-03-02T18:00:43.216000Z",
  "file_hash": "a4a11a3218707a8349c636b6ec824b132db75b34f0358c11922253309f77ff89",
  "private": false,
  "record": {
    "abstract": "A compound pendulum of simple geometry was built from a lightweight rod to\nwhich a pair of masses are clamped, one above and the other below the axis of\nrotation. By making the position of the upper mass variable, it was found that\nthe characteristics of this pendulum can be altered dramatically. A theoretical\nmodel of the instrument is presented, which is in reasonable agreement with\nexperimental observations. From the model it is shown that isochronism of the\nflex-pendulum can be significantly greater than that of the simple pendulum",
    "arxiv_id": "physics/0306088",
    "authors": [
      "Randall D. Peters"
    ],
    "categories": [
      "physics.ed-ph"
    ],
    "title": "The Flex-Pendulum -- Basis for an Improved Timepiece",
    "url": "https://arxiv.org/abs/physics/0306088"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c31fd3a0-4948-4a24-aff1-470c1dc4d7e2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}