Please note "Lifesaving rare earth elements" is a Chinese (Traditional Chinese) application.
Do you know your rare earth elements? These 17 special elements are found in a wide variety of machinery and products that we use every day, including headphones, flashlights, magnets, LEDs, monitors, and electrical generators.
But are rare earth elements really a rarity? How much do we need them? This Chinese-language app examines the subject in thorough detail.