Science NewsCurated by RSF Research Staff Home > Science News > NIST ‘Noise Thermometry’ Yields Accurate New Measurements of Boltzmann Constant New results will contribute to international effort to redefine measurement unit for temperature. By measuring the random jiggling motion of electrons in a resistor, researchers at the National Institute of Standards and Technology (NIST) have contributed to accurate new measurements of the Boltzmann constant, a fundamental scientific value that relates the energy of a system to its temperature. NIST made one measurement in its Boulder, Colorado, laboratory and collaborated on another in China. These results will contribute to a worldwide effort to redefine the kelvin, the international unit of temperature, and could lead to better thermometers for industry. Accurate temperature measurement is critical to any manufacturing process that requires specific temperatures, such as steel production. It’s also important for nuclear power reactors, which require precise thermometers that are not destroyed by radiation and do not need to be regularly replaced by human workers. “We live with temperature every day,” said Samuel Benz, group leader of the NIST research team involved with the new results. “The current measurements that define the kelvin are 100 times less accurate than measurements defining the units for mass and electricity.” The kilogram is known to parts per billion, while the kelvin is only known to a part in a million. Article: https://www.nist.gov/news-events/news/2017/06/nist-noise-thermometry-yields-accurate-new-measurements-boltzmann-constant Measuring gravitational waves to see inside starsSeptember 20, 2017New progress in Quantum Machine LearningSeptember 19, 2017The emergent physics of animal locomotionSeptember 19, 2017Water Droplets SuperpropulsionSeptember 18, 2017Supernova observations helping understand general relativitySeptember 18, 2017 Sharing is caring - please share this with your friends: Facebook Twitter If you like this content, you will love the Resonance Academy.