Using a state-of-the-art device for measuring mass, researchers have made their most precise determination yet of Planck's constant, an important value in science that will help to redefine the ...

Have you ever imagined weighing even the smallest particle of a certain object? If ever a yes, then you actually had the same perception as Adrian Bachtold and his company when they did the tiniest ...

Thank you for bringing to my attention the recent International Union of Pure & Applied Chemistry report “Atomic weights of the elements 2009” (C&EN, Dec. 20 ...