{
  "title": "Check my math: twin paradox",
  "description": "Each step, unit, source number and Seeing mark on this page. Speeds and trip lengths are chosen by this page; experiment figures are as reported by Wortel, Malin and Semon 2007. Released under CC BY 4.0.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "The What-If Observatory",
  "page": "https://whatifobservatory.com/paradoxes/twin-paradox/",
  "derived_from": [
    "Einstein 1905, Annalen der Physik 17",
    "Weinstein 2012, arXiv:1205.0922",
    "Wortel, Malin and Semon 2007, arXiv:gr-qc/0703090",
    "NIST CODATA 2022 and SP 811",
    "Bailer-Jones and Farnocchia 2019, arXiv:1912.03503"
  ],
  "method": "Compiled by The What-If Observatory from the data listed",
  "data_credit": [
    "Einstein 1905, Annalen der Physik 17",
    "Weinstein 2012, arXiv:1205.0922",
    "Wortel, Malin and Semon 2007, arXiv:gr-qc/0703090",
    "NIST CODATA 2022 and SP 811",
    "Bailer-Jones and Farnocchia 2019, arXiv:1912.03503"
  ]
}