Videos@lemmy.worldEnglish · 2 年前

Why It Was Almost Impossible to Make the Blue LED

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Why It Was Almost Impossible to Make the Blue LED

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Videos@lemmy.worldEnglish · 2 年前

The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea. Head to https://brilliant.org/veritasium to start your free 30-da...

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2 年前
Always love Veritasium

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