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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.   |
IEEE Spectrum
May 2012
Rachel Courtland |
The Kilogram, Reinvented Two difficult experiments are poised to remake one of the world's most fundamental units |
Chemistry World
October 31, 2011
Simon Hadlington |
The kilogram is dead! Long live the kilogram! Delegates at the 24th Conference on Weights and Measures, held in France on 21 October, were persuaded that the existing definitions of these units were outdated and needed to be dragged into the 21st century. |
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
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. |
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
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
March 5, 2007
Richard Van Noorden |
Desperately Seeking Silicon Silicon has been blamed for the faulty fuel that caused thousands of UK cars to break down last week. How can a silvery-gray semi-metal popularly known to be used in computer chips have found its way into gasoline? |
