attoparsec
:attoparsec: n. About an inch. `atto-' is the standard SI prefix for
multiplication by 10^(-18). A parsec (parallax-second) is 3.26
light-years; an attoparsec is thus 3.26 * 10^(-18) light years, or about
3.1 cm (thus, 1 attoparsec/ microfortnight
equals about 1 inch/sec).
This unit is reported to be in use (though probably not very seriously)
among hackers in the U.K. See micro-
Jargon File Version 4.3.1, 29 JUN 2001 =
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