For the description of ocean currents accurate measurements of the density of sea water are of great importance. For this purpose, measuring instruments are needed which reach a small uncertainty. To ...

Measuring the density of a cell can reveal a great deal about the cell’s state. As cells proliferate, differentiate, or undergo cell death, they may gain or lose water and other molecules, which is ...

Measuring the density of a cell can reveal a great deal about the cell's state. As cells proliferate, differentiate, or undergo cell death, they may gain or lose water and other molecules, which is ...

Sir, – The recently amended version of the article entitled “Decades of recurring housing crises remains a reality – penalising the young, rewarding the old” (David McWilliams, January 28th) includes ...

This release is also available in German. For oceanography – and there in particular for the description of ocean currents – accurate measurements of the density of sea water are of great importance.