HOW NIELS BOHR CRACKED THE RARE-EARTH CODE

You can’t scroll a tech blog without stumbling across a mention of rare earths—vital to EVs, renewables and defence hardware—yet almost no one grasps their story. These 17 elements look ordinary, but they anchor the gadgets we carry daily. For decades they mocked chemists, remaining a riddle, until a quantum pioneer named Niels Bohr rewrot