STANDARD METRE.
A METRE (US SPELLING, METER) IS THE BASIC UNIT OF LENGTH IN THE SI MEASUREMENT SYSTEM. ACCORDING TO THE EARLIEST DEFINITION (DATING TO THE FRENCH REVOLUTION), IT WAS 1/10,000,000TH (ONE TEN-MILLIONTH) OF THE DISTANCE BETWEEN THE EARTH'S EQUATOR AND THE NORTH POLE ALONG THE PARIS MERIDIAN. THE METRE IS NOW OFFICIALLY DEFINED AS THE DISTANCE LIGHT TRAVELS IN A VACUUM IN 1/299,792,458TH OF A SECOND.
Product code: 261009 d
Price: 360 euro
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