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The Kilogram Has Been Putting On Weight
2013-01-07 10:20:51

Scientists from University of Newcastle say that the platinum-based kilogram standard has been putting on weight over the years, adding tens of micrograms of hydrocarbon "pollution" every year.


Word of the Day
saggar
  • A ceramic container used inside a fuel-fired kiln to protect pots from the flame.
The word 'saggar' may come from 'safeguard'.
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