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submitted 2 years ago by Whirling_Cloudburst@lemmy.world to c/technology@lemmy.world

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

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[–] captainlezbian@lemmy.world 7 points 2 years ago

Yeah they go really well. Like you probably use some and don’t realize it. One of my local gas station chains is one

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