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 ...

Perhaps it is out of exasperation, but some people claim that "Once the temperature goes below zero, it's all the same: cold." But this could not be further from the truth. Each degree the temperature ...

Scientists have performed the most accurate measurement yet of the Boltzmann constant. While the impact of such an achievement is not immediately obvious, the measurement could revolutionize the way ...

These units, together with the astronomical second (based on the mean solar day) as the unit of time, constituted a mechanical unit system. Following the introduction of the ampere, the kelvin and the ...

How we measure the world underwent a quantum leap on Monday as scientists adopted new hyper-accurate definitions for units of weight, electricity and temperature derived from the universal laws of ...

Some people make the claim, “Once the temperature goes below zero, it’s all the same: cold.” But this is actually not the case. Each degree the temperature goes down is an equal amount of difference ...