In July 2012, two cameras on a hillside in China accidentally recorded one of the rarest phenomena in atmospheric physics. A glowing ball appeared immediately after a lightning strike, drifted across the ground for 1.64 seconds, and left behind something scientists had never captured before: a spectrum. Its light contained silicon, iron, and calcium — the chemical fingerprints of the soil beneath it — supporting a theory proposed years earlier that ball lightning may literally be burning material vaporized from the ground. But the same observation also contained details that do not fit neatly into that explanation, and more than a decade later, ball lightning still has no single accepted mechanism. ─────────────────────────────── IN THIS EPISODE— Centuries of reports with almost no usable measurements— The accidental 2012 spectrum of a glowing ball in Qinghai— Burning silicon, plasma bubbles, and competing explanations— Why the best dataset in the field is still a sample of one SOURCESNature, 2000 — Abrahamson & DinnissPhysical Review Letters, 2014 — Cen, Yuan & XuePhysical Review E, 2016 — Hui-Chun WuPhysical Review Letters, 2007 — Paiva et al. ─────────────────────────────── Narration in this episode is AI-assisted. Research, writing, and editorial decisions are human. Reality Is Strange — real phenomena, verified, and stranger than they should be.

Ball Lightning: The Mystery We Finally Measured

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