Scientists have measured the shortest interval of time ever recorded – and now know it takes 247 zeptoseconds for a particle of light to cross a single hydrogen molecule.

Photoelectric effect

It’s official folks. It takes 247 zeptoseconds, or a trillionth of a billionth of a second, for a particle of light to cross a single molecule of hydrogen marking the shortest interval of time ever recorded. Yep, that’s a 1 written behind 20 zeroes and a decimal point. Blink, blink. It’s gone. The measurement was…

Read more