IVDB
Sign in
The blue LED was almost impossible to make
Watch on YouTube

The blue LED was almost impossible to make

Veritasium•Aug 02, 2025•8M views•1:43
Likes
313.8K
Comments
2.2K
Views
8M
Community rating
★ —
(0)
Your rating
Sign in to rate
Reviews
0 reviews
No reviews yet.
Overview

LED's don't get their colour from their plastic covers. The blue LED was supposed to be impossible—until a young engineer proposed a moon-shot idea.

More from Veritasium

View creator page
What is this strange pattern down the east coast of America?
★—(0)
800.6K views
What is this strange pattern down the east coast of America?
Veritasium
Dec 11, 2025
Something Weird Happens When E=−mc²
★—(0)
5.3M views
Something Weird Happens When E=−mc²
Veritasium
Dec 05, 2025
I Turned My Phone Into A Microscope
★—(0)
945.2K views
I Turned My Phone Into A Microscope
Veritasium
Nov 27, 2025
You've (Likely) Been Playing The Game of Life Wrong
★—(0)
6.6M views
You've (Likely) Been Playing The Game of Life Wrong
Veritasium
Nov 26, 2025
How Strong Is Super Glue?
Short
★—(0)
2.2M views
How Strong Is Super Glue?
Veritasium
Nov 21, 2025
What happens if you throw sand into a jet engine?
★—(0)
8M views
What happens if you throw sand into a jet engine?
Veritasium
Nov 17, 2025
Why People Are So Confident When They're Wrong
★—(0)
4.9M views
Why People Are So Confident When They're Wrong
Veritasium
Nov 12, 2025
Seeing Inside A Thermite Reaction
★—(0)
5.4M views
Seeing Inside A Thermite Reaction
Veritasium
Nov 10, 2025