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.

  • FrostyCaveman@lemm.eeEnglish
    21·
    7 months ago

    That was a great read, thanks. It made me realise I don’t even remember the last time I changed a light bulb!