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.

      • SatansMaggotyCumFartEnglish
        11•11 months ago

        X-rays use invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs on film or digital media.

        Good advice, but I put a Kleenex in my urethra for safekeeping and I’d love to track it down to get it out again.