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.

  • @[email protected]English
    22•8 months ago

    The first blue LED I ever saw was on the dashboard of my mom’s VW Golf. I always wanted one like that, but now they’re everywhere!

      • @[email protected]English
        8•8 months ago

        Agreed, though the original wasn’t as bright as the one in the pic. It was a frosted LED and was relatively dim.

        • Yer MaEnglish
          2•8 months ago

          I like my car dashboard like I like my 1952 F-86 Saber night variant gauges… Orange

    • @[email protected]English
      5•8 months ago

      Before there were blue LED, the indicator light for full beam was a blue tinted incandescent bulb. My parents had a Volkswagen Passat from the 1980s (?) where the usually blue indicator light for full beam was a green LED, since blue ones were not invented back then.