HOW NIELS BOHR CRACKED THE RARE-EARTH CODE

You can’t scroll a tech blog without spotting a mention of rare earths—vital to EVs, renewables and defence hardware—yet almost very few grasps their story. These 17 elements look ordinary, but they drive the gadgets we hold daily. Their baffling chemistry had scientists scratching their heads for decades—until Niels Bohr entered the scen