Length, time and volume are all examples of quantities close quantityA property that can exist as a magnitude, usually with a numerical value. For example, speed (quantity) is measured in metres per ...

Scientists carried out an experiment that realizes a new kind of quantum standard of resistance. It's based on the Quantum Anomalous Hall Effect. The precise measurement of electrical resistance is ...

Scientists at the University of Würzburg and the German national metrology institute (PTB) have carried out an experiment that realizes a new kind of quantum standard of resistance. It's based on the ...

One of the most important—and famous—results in quantum mechanics is the Heisenberg Uncertainty Principle (HUP). What is less known (at least to non-physicists) is that the HUP exists in two versions.

In a recent study published in the journal Nature Electronics, researchers from the University of Würzburg and the German ...

The International System of Units (SI Units), adopted in 1960, is the global standard for consistent measurement, replacing ...

The precise measurement of electrical resistance is essential in industrial production or electronics – for example, in the manufacture of high-tech sensors, microchips and flight controls. “Very ...