- cross-posted to:
- science@lemmy.world
- videos@lemmy.world
- videos@hexbear.net
- cross-posted to:
- science@lemmy.world
- videos@lemmy.world
- videos@hexbear.net
The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.
The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.
The leds can work for like 20 years. On the other hand the rest of the components are not necessarily going to last that long unfortunately.