this post was submitted on 09 Feb 2024
876 points (96.7% liked)

Technology

59135 readers
6622 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago
MODERATORS
L3s@lemmy.world
L4s@lemmy.world
L3s@fry.gs
L4s@fry.gs
enu@lemmy.world
876
Why It Was Almost Impossible to Make the Blue LED (youtu.be)
submitted 9 months ago by Whirling_Cloudburst@lemmy.world to c/technology@lemmy.world
204 comments fedilink hide all child comments
 

The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.

you are viewing a single comment's thread
view the rest of the comments
[–] Alto@kbin.social 2 points 8 months ago

Right there with you.

More specifically, it's because purple fires your red and blue cones, but not the green one. Normally, as green is between red and blue, anything that would trigger those two also would trigger green. So when it doesn't, that's when your brain goes "well I guess it's not green???"