The blue LED was almost impossible to make

Name: The blue LED was almost impossible to make
Uploaded: 2025-08-02T13:45:54+00:00
Duration: 1 min 43 s
Channel: Veritasium
Description: 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.&#10;...&#10;https://www.youtube.com/watch?v=UKfnXd3x-rw

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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.
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https://www.youtube.com/watch?v=UKfnXd3x-rw