TechnologyQuantum batteries that charge wirelessly might never lose efficiency Today’s batteries lose efficiency – or “age” – through use, but theoretical quantum batteries might be immune to the problem if they are charged wirelessly 51¶ŻÂţ
PhysicsFive of the biggest unanswered questions about the proton There is a lot we don’t know about protons, the particles at the heart of the atom, from what they are made of to whether they live forever. Solving the mysteries surrounding them could transform our understanding of the universe. Features