HOW NIELS BOHR CRACKED THE RARE-EARTH CODE

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