TO WIN A sport of Scrabble, begin on the backside of the periodic desk. The 17 “uncommon earths” that reside there have longish names, corresponding to dysprosium and praseodymium, that are replete with point-worthy letters. They share different traits, too. All are produced and utilized in minuscule quantities, but are essential to a spread of high-tech items, from batteries and renewables to weapons and medical units. Extra vital nonetheless, all are largely equipped to the world by China.
