Novel 'noise thermometry' may help redefine international unit of temperature

After seven years of work, researchers at the National Institute of Standards and Technology have built a system that relies on the "noise" of jiggling electrons as a basis for measuring temperatures with extreme precision. The system is nearly precise enough now to help update some of the crucial underpinnings of science, including the 54-year-old definition of the Kelvin, the international unit of temperature.

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<p><a href="http://www.physorg.com/news131719655.html">Novel 'noise thermometry' may help redefine international unit of temperature</a></p> <p>After seven years of work, researchers at the National Institute of Standards and Technology have built a system that relies on the "noise" of jiggling electrons as a basis for measuring temperatures with extreme precision. The system is nearly precise enough now to help update some of the crucial underpinnings of science, including the 54-year-old definition of the Kelvin, the international unit of temperature.</p>