{
  "annotation_id": "ce5d1a14-a95c-4b92-9365-85821bd60fe4",
  "date_created": "2026-03-02T18:01:04.179000Z",
  "date_modified": "2026-03-02T18:01:04.179000Z",
  "file_hash": "192d11570033b035e650375ff1c103481a986bf2a04b02d3ff362dc6a490fb17",
  "private": false,
  "record": {
    "abstract": "Due to an ever growing shortage of conventional energy sources, there is an\nincreasingly intense interest in harnessing solar energy. The instant invention\ncan contribute to the goal of achieving environmentally clean solar energy to\nbe competitive with conventional energy sources. A novel method is described\nfor manufacturing a transparent sheet with an embedded array of mirrored\nspheroidal micro-balls for use in a solar energy concentrator, and analogous\napplications such as optical switches and solar rocket assist. The micro-balls\nare covered with a thin spherical shell of lubricating liquid so that they are\nfree to rotate in an almost frictionless encapsulation in the sheet. Novel\nmethod and apparatus are presented for producing the preferred embodiment of a\nclose-packed monolayer of the array of mirrored micro-balls.",
    "arxiv_id": "physics/0601210",
    "authors": [
      "Mario Rabinowitz",
      "David V. Overhauser"
    ],
    "categories": [
      "physics.gen-ph",
      "physics.soc-ph"
    ],
    "journal_ref": "US Patent #6,987,604; Jan. 17, 2006",
    "title": "Manufacture of and Apparatus for Nearly Frictionless Operation of a   Rotatable Array of Micro-Mirrors in a Solar Concentrator Sheet",
    "url": "https://arxiv.org/abs/physics/0601210"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f5d3eee4-18a1-4739-8631-5854807ead88",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}