Claus Lämmerzahl, Professor of Gravitational Physics at the University of Bremen, and Dr. Sebastian Ulbricht, scientist at ...

When we want to measure the mass of an object that weighs more than 1000 grams we use kilograms. Kilograms are shortened to ‘kg’. Look at the items below. As they are over 1000 grams we can ...

When we want to measure the mass of an object that weighs more than 1000 grams we use kilograms. Kilograms are shortened to ‘kg’. Look at the items below. As they are over 1000 grams we can ...

But the master kilogram and its copies were seen to change - ever so slightly - as they deteriorated. In a world where accurate measurement is now critical in many areas, such as in drug ...

You see, Le Grand K is the most perfect kilogram on the planet. For weight measurements to mean anything, every scale has to be calibrated on the exact same standard, and that’s where this ...

Scientists at the University of Würzburg and the German national metrology institute (PTB) have carried out an experiment ...

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