Effective theorists: Sonia Bacca (left), Bijaya Acharya (centre) and Joanna Sobczyk. (Courtesy: Sabrina Hopp/Angelika Stehle) The interaction between an electron and a calcium-40 nucleus has been ...

The next time you step on bathroom scales, remember that it’s not your big bone structure or that extra helping of pudding that makes you heavy, it’s the motion of the quarks and gluons buzzing around ...