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Summary Of: Metre
the metre was defined by the... One approach suggested defining the metre as the length of a... The other approach suggested defining the metre as one ten... adopted as its official unit of length a metre based on provisional results from the expedition as its official unit of length... it was later determined that the first prototype metre bar was short by a fifth of a millimetre due to miscalculation of the flattening... the standard metre was first measured with an... the International Prototype Metre remained the standard until 1960... defined the metre in the new... The original international prototype of the metre is still kept at the BIPM under the conditions specified in 1889... CGPM in 1983 replaced the definition of the metre with its current definition... thus fixing the length of the metre in terms of... The metre is the length of the path travelled by light in vacuum during a time interval... the limiting factor in laboratory realisations of the metre as it is several orders of magnitude poorer than that of the second... a practical realisation of the metre is usually delineated... decides that the length of the new metre would be equal to the length of a... that the new definition for the metre be equal to one ten... Provisional metre bar constructed of... Encyclodia Page On: Metre
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