Sunday 18 November 2007

Metre

The metre or meter (symbol: m) is the fundamental unit of length in the International System of Units (SI).

The metre was originally defined by a prototype object meant to represent 1⁄10,000,000 the distance between the poles and the Equator.

Today, it is defined as 1⁄299,792,458 of a light-second.

See http://en.wikipedia.org/wiki/Metre

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