THE UNTOLD LINK BETWEEN NIELS BOHR AND RARE-EARTH RIDDLES

Rare earths are today dominating debates on electric vehicles, wind turbines and cutting-edge defence gear. Yet most readers still misunderstand what “rare earths” actually are. These 17 elements seem ordinary, but they anchor the devices we carry daily. Their baffling chemistry had scientists scratching their heads for decades—until Niels B