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YouTubeVeritasium
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. Head to https://brilliant.org/veritasium to start your free 30-day trial, and the first 200 people get 20% off an annual premium subscription. Special thanks to our Patreon supporters! Join this list to help us keep our videos free, forever: https ...
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NextGen Gadget on Instagram: "पटाखे जलाओ… बिना पास जाए! 🎆🔥 Remote Control Igniter से 10 मीटर दूर से भी पटाखों का मज़ा, बच्चों के लिए भी पूरी तरह Safe! 📲 #Diwali2025 #SafetyFirst #PatakheWaliMasti #RemoteIgniter #FireworksFun #GadgetsForFun #DiwaliSpecial"
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