Erbium and yttrium, are good examples of how “tiny quantities of rare earths can have an outsized impact by enabling core functionality in their respective applications.” Taken together, all of these rare earths “literally affect almost anything we can switch on and off.”
A Looming Rare Earth Shortage Threatens Critical Tech
Submitted 23 hours ago by 
rimu@piefed.social@piefed.social to technology@piefed.social
https://spectrum.ieee.org/rare-earth-shortage