Why It Was Almost Impossible to Make the Blue LED

Whirling_Cloudburst@lemmy.world to Technology@lemmy.world – 927 points –
Why It Was Almost Impossible to Make the Blue LED
youtu.be

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

203

You are viewing a single comment

Your white led is a blue led with a phosphorescent coating.

Well no, but...yeah sure why not haha

Edit: Read the comment I replied to completely backwards nvm, am dumb lol

1 more...