@aiera
Researchers have recorded the briefest interval of time ever measured: 247 zeptoseconds—the duration for a photon of light to traverse a hydrogen molecule.
That's 0.000000000000000000247 seconds.A zeptosecond equals one trillionth of a billionth of a second, a realm where light, the universe's speed champion, advances mere fractions of an atomic diameter. For scale, a single second contains as many zeptoseconds as there are seconds in 31.7 trillion years—vastly exceeding the age of the cosmos.
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