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  "path": "/news/2026-04-tiny-robots-fly-seeds.html",
  "publishedAt": "2026-04-23T14:00:11.000Z",
  "site": "https://techxplore.com",
  "tags": [
    "Robotics"
  ],
  "textContent": "When a knot lets go, it doesn't just fall apart. It snaps. That simple observation led Penn Engineers to rethink what a knot can do. Instead of treating it as something that holds tension, they asked a different question: what happens when you design a knot to release it? The answer is a tiny, soft robot capable of leaping meters into the air, flipping mid-flight, spinning like a propeller or even gliding back to where it started.",
  "title": "Tiny, knotted robots jump, fly and plant seeds"
}