Why It Was Almost Impossible to Make the Blue LED?

1 year ago
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Science Knowledge Technology HighTech Electronic Light ScientificResearch ShujiNakamura BlueLED

Source video : Why It Was Almost Impossible to Make the Blue LED
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The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.

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

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