THE SECRET LIFE OF GOLD

摘要

Right this second,a bit of gold could be within your reach even if you're not wearing gold jewelry.The precious metal could be in your pocket,or in front of you on your desk-that's because a very small amount of gold is inside phones,tablets,and laptops.Hidden behind electronic screens and outer casings of glass and aluminum are computers’electronic brains,which rely on gold along with other precious metals.Just a tiny quantity of gold-about 0.034 grams-conducts electricity in a cellphone,and prevents other electrical components from corroding.It allows you to reliably text and watch YouTube videos at the tap of a finger.That's why gold is in your pocket,but where did it come from?