The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea. Head to https://brilliant.org/veritasium to start your free 30-da...
The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.
If you own anything with “white” LEDs, I have some bad news for you…
Or reading this on anything except an e-reader or if someone else printed it out on a printer without blue leds first.