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2024-02-09 04:52:22

Bob Tregilus :tux:📷:copyleft: on Nostr: The amazing story of the blue LED. https://www.youtube.com/watch?v=AF8d72mA41M #LED ...

The amazing story of the blue LED.

https://www.youtube.com/watch?v=AF8d72mA41M

#LED #Physics #Chemistry #Engineering #Materials #Light
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