Why It Was Almost Impossible to Make the Blue LED
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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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How to place an electric bulb in a place where it will rain #fyp #foryou #foryoupage
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This 4-pack of emergency lightbulbs is an essential addition to the home for grid down emergency back up lighting. They’re also great for camping, off grid living, and work great as flashlights. #prepperessentials #shtf #survivalist #emergencypreparedness #homelighting
0:49
This 4-pack of emergency lightbulbs is an essential addition to the home for grid down emergency back up lighting. They’re also great for camping, off grid living, and work great as flashlights. #prepperessentials #shtf #survivalist #emergencypreparedness #homelighting
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Reflect Your Brilliance with 'Mirror to Magic' 🌟
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No MOQ,shipping worldwide and door to door delivery 👍 Get free Design/Quote/Catalog Please contact 👇 Email:ivan@lcsign.com WhatsApp:86 18027164804 #led #ledsign #ledlights #sign #signage #neon #neonsign #lol #signguy #lightbox #customsigns #illuminatedsigns #3dsign #businesssign #customsign #outdoorsign #signfactory #signage #signmaker #office #hotel #hospital #park #madeinchina #tony #lcsign #fyp #usa
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