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  "path": "/2026/05/13/measure-the-earths-rotation-victorian-style/",
  "publishedAt": "2026-05-13T14:00:33.000Z",
  "site": "https://hackaday.com",
  "tags": [
    "classic hacks",
    "Science",
    "foucault pendulum",
    "pendulum",
    "…read more"
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  "textContent": "You’ve probably seen a Foucault pendulum in a museum. This Victorian-era science demonstration is named after physicist Léon Foucault and shows how the Earth rotates compared to a pendulum moving …read more",
  "title": "Measure the Earth’s Rotation Victorian Style"
}