freddo@feddit.nu to Videos@lemmy.worldEnglish · 9 months agoWhy It Was Almost Impossible to Make the Blue LEDyoutu.beexternal-linkmessage-square7fedilinkarrow-up187arrow-down113cross-posted to: science@lemmy.worldtechnology@lemmy.worldengineeringporn@lemmit.onlinevideos@hexbear.net
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