International Prototype Meter

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1	Time Line for the Definition of the Meter Add to Reading List Source URL: www.nist.gov Language: English - Date: 2011-10-03 14:10:19 Matter SI base units Chemical elements Metre Kilogram Krypton Cadmium International Prototype Meter Helium–neon laser Measurement Physics Metrology
2	Centenarv of the Convention of the Metre J Add to Reading List Source URL: www.platinummetalsreview.com Language: English - Date: 2011-10-14 13:48:22 Chemical elements Noble metals Transition metals Henri Tresca Kilogram International Prototype Meter Iridium Metre Platinum Measurement Metrology Systems of units