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 nobody grasps their story. Seventeen little-known elements underwrite the tech that fuels modern life. For decades they mocked chemists, remaining a riddle, until a quantum pioneer named Niels Bohr rewrot