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.

        • Yer Ma@lemm.eeEnglish
          2·
          10 months ago

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

    • nicerdicer@feddit.deEnglish
      5·
      10 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.