attosecond

(thing) by Spuunbenda (1.7 wk) Tue Dec 12 2000 at 16:26:45
One quintillionth of a second, or 10-18 second.

In vacuum, light travels about .00000035 of a millimeter in an attosecond. (!)

Delay between states of polarization in some optical fiber media is measured in attoseconds.

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