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Chemistry World
September 2011 |
The new SI Ahead of the 24th General conference on weights and measures in October, Peter Atkins explains the benefits of the new Systeme international d' unites.   |
Chemistry World
February 15, 2012
Simon Hadlington |
Consistent Avogadro number a step nearer Chemical metrologists in Canada have made the most accurate measurement of silicon's molecular weight to date in a bid to derive a consistent and internationally acceptable figure for the Avogadro constant. |
IEEE Spectrum
May 2012
Rachel Courtland |
The Kilogram, Reinvented Two difficult experiments are poised to remake one of the world's most fundamental units |
Wired
August 21, 2007
Charlie Emrich |
Aussie Researchers Cut, Grind, and Polish the Perfect Kilogram Materials scientists create the roundest object in world weighing one perfect kilogram... International System of Units Standards: Meter... Second... Ampere... Kelvin... etc. |
Chemistry World
January 7, 2013
James Urquhart |
Kilogram ready to slim down for the new year UK scientists have developed a cleaning technique that could solve a long-standing puzzle in the field of metrology -- how to return the standard kilogram, against which all others are measured, to its original mass. |
Chemistry World
July 21, 2015
Simon Hadlington |
Refining Avogadro's number on way to new kilo A new milestone has been passed on the way to redefining the kilogram in terms of Planck's constant by 2018. |
Chemistry World
January 10, 2013
Simon Hadlington |
Quantum timepiece ticks the right boxes In a remarkable feat of quantum horology, scientists in the US have created a clock that derives its timing mechanism from nothing more complicated than the mass of an atom. The new clock could prove to be a new way to make highly accurate measurements of atomic mass. |
