{
  "annotation_id": "6ba278fd-8c8c-4cfd-aafa-f5f886a58a48",
  "date_created": "2026-03-02T18:01:06.957000Z",
  "date_modified": "2026-03-02T18:01:06.957000Z",
  "file_hash": "f39691ca69a1f41eb05892a4d302d59383b04019e5d576bbb4978f70ee014b0f",
  "private": false,
  "record": {
    "abstract": "One of the best ways to measure low-frequency eigenmode oscillations of the\nEarth is to monitor a simple pendulum responding to tilt. A theoretical basis\nfor the method is given, by investigating a particular, well-known standing\nwave-the one with 53 minute period corresponding to oblate/prolate spheroidal\ndeviations from the geoid.",
    "arxiv_id": "physics/0605162",
    "authors": [
      "Randall D. Peters"
    ],
    "categories": [
      "physics.geo-ph",
      "physics.ed-ph"
    ],
    "title": "Measurement of Earth\u0027s Free-Oscillations using a Pendulum",
    "url": "https://arxiv.org/abs/physics/0605162"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "92e02bc9-2be3-4142-ac2e-e8c65ff645f2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}