Why It Was Almost Impossible to Make the Blue LED

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

I am an older gay guy in a long-term wonderful relationship. My spouse and I are in our 36th year together. I love politics and news. I enjoy civil discussions and have no taboo subjects. My pronouns are he / him / his and my email is Scottiestoybox@gmail.com

2 thoughts on “Why It Was Almost Impossible to Make the Blue LED”

    1. Hi Ali. I love science, history, and learning new things. In this video, I learned the history, the LED tech to make them, and what they are themselves. Before to me they were a product, I knew what a diode was from my days in the military, but never understood the light emitting part. Hugs. Scottie

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