A cheaper way to light up smartphones and TVs, no asteroid required

Chemists have found a cheaper way to light up smartphone and TV screens -- using copper rather than iridium -- which could save manufacturers and consumers money without affecting visual quality. Iridium is one of the rarest elements on Earth, its origins possibly a millions-year-old asteroid; ...This is an NSF Multimedia Gallery item.

Source: NSF Multimedia Gallery - March 4, 2019 Category: Science Source Type: video