From: "Mauricio Fernández" Date: 2002-12-12T10:11:55+09:00 Subject: Re: Proper Type for Dollar Amount On Thu, Dec 12, 2002 at 09:54:08AM +0900, Daniel Carrera wrote: > Actually, the meter has been redefined to be 1/299,792,458th of the > distance that light travels in a vacuun in 1 second. Thus, the speed of > light is exactly 299,792,458 m/s. > > Thins brings up an interesting point. Originally, the second was defined > as the period of a pendulum with length 1m. If that's still the > definition, then this would be circular. > > I wonder if the second has also been redefined. Found that somewhere: second (s): In the International System of Units (SI), the time interval equal to 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom. (188) But perhaps this is old now, in fact I used to believe that it was defined in terms of the time an electromagnetic wave takes to travel 299,792,458m in a vacuum :-) BTW, the metric system RULEZ! }:-> http://www.matsushita.co.jp/corp/timecapsule/record/4_10.html The proof, that's probably what matz uses :-) -- _ _ | |__ __ _| |_ ___ _ __ ___ __ _ _ __ | '_ \ / _` | __/ __| '_ ` _ \ / _` | '_ \ | |_) | (_| | |_\__ \ | | | | | (_| | | | | |_.__/ \__,_|\__|___/_| |_| |_|\__,_|_| |_| Running Debian GNU/Linux Sid (unstable) batsman dot geo at yahoo dot com abuse me. I'm so lame I sent a bug report to debian-devel-changes -- Seen on #Debian