ChemistryThree reasons why the periodic table needs a redesignChemists can't agree on the best way to arrange the elements, prompting proposals of everything from spiral-shaped alternatives to radically elongated versionsFeatures
Physics5 of the world’s toughest unsolved maths problems The Open Problems in Mathematical Physics is a list of the most monstrous maths riddles in physics. Here are five of the top problems that remain unsolved Features