Determination of the Boltzmann constant by dielectric-constant gas thermometry. Metrologia , 2011; 48 (5): 382 DOI: 10.1088/0026-1394/48/5/020 Cite This Page : ...

The Boltzmann constant* relates energy to temperature for individual particles such as atoms. The accepted value of this constant is based mainly on a 1988 NIST measurement performed using ...

Although this is less accurate than other techniques, the researchers think that they should be able to reduce the uncertainty to 6 ×10 –6 in the future, which would make it an attractive method for ...

From these spectra, we derive a value for Boltzmann’s constant with an uncertainty of 71 p.p.m., consistent with the recommended CODATA value, and the hyperfine frequency splitting of the 6 2 P ...

NIST 'noise thermometry' yields accurate new measurements of boltzmann constant New results will contribute to international effort to redefine measurement unit for temperature ...

Mirror perfection A perfectly engineered hemisphere – one half of a nearly spherical resonator used to measure the Boltzmann constant. (Courtesy: Michael de Podesta/NPL) Accurate measurement of ...

Also, the constant R is replaced with k, the Boltzmann constant, with a value of 1.380649×10 −23 joules per kelvin. Let’s explain each of these terms. Pressure.

Boltzmann and Planck constants remeasured ... NIST scientists have now measured that constant’s value as 6.626069934 × 10 –34 kg·m 2 /second by using a Kibble balance, ...

A new measurement of a fundamental physical constant marks a turning point in the quest to craft a perfect temperature scale The most accurate thermometer in the known universe sits in a rather ...