Technology@lemmy.worldEnglish · 3 years ago

Why It Was Almost Impossible to Make the Blue LED

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Why It Was Almost Impossible to Make the Blue LED

youtu.be

Whirling_Cloudburst@lemmy.world to

Technology@lemmy.worldEnglish · 3 years ago

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

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