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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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Upgrade your business with a stunning LED sign — without the huge upfront cost. With Cirrus LED’s subscribe-to-own model, you get a high-performance sign, full-service install, and lifetime support for one low monthly price. 🎁 Right now, get 2 months FREE when you subscribe. ✅ No large down payments ✅ Complete 5-year warranty included ✅ Easy-to-use software and lifetime support 🤝 Trusted by over 10,000 businesses nationwide | Cirrus Systems, Inc.
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Upgrade your business with a stunning LED sign — without the huge upfront cost. With Cirrus LED’s subscribe-to-own model, you get a high-performance sign, full-service install, and lifetime support for one low monthly price. 🎁 Right now, get 2 months FREE when you subscribe. ✅ No large down payments ✅ Complete 5-year warranty included ✅ Easy-to-use software and lifetime support 🤝 Trusted by over 10,000 businesses nationwide | Cirrus Systems, Inc.
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Upgrade your business with a stunning LED sign — without the huge upfront cost. With Cirrus LED’s subscribe-to-own model, you get a high-performance sign, full-service install, and lifetime support for one low monthly price. 🎁 Right now, get 2 months FREE when you subscribe. ✅ No large down payments ✅ Complete 5-year warranty included ✅ Easy-to-use software and lifetime support 🤝 Trusted by over 10,000 businesses nationwide | Cirrus Systems, Inc.
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Upgrade your business with a stunning LED sign — without the huge upfront cost. With Cirrus LED’s subscribe-to-own model, you get a high-performance sign, full-service install, and lifetime support for one low monthly price. 🎁 Right now, get 2 months FREE when you subscribe. ✅ No large down payments ✅ Complete 5-year warranty included ✅ Easy-to-use software and lifetime support 🤝 Trusted by over 10,000 businesses nationwide | Cirrus Systems, Inc.
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Upgrade your business with a stunning LED sign — without the huge upfront cost! With Cirrus LED’s subscribe-to-own model, you get a high-performance sign, full-service install, and lifetime support for one low monthly payment. 🎁 Right now, get 2 months FREE when you subscribe. ✅ No large down payments ✅ 5-year warranty included ✅ Powerful signage software for content and performance tracking 👉 Contact a Cirrus Sign Expert today and start growing your business with the best in digital signage!
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Upgrade your business with a stunning LED sign — without the huge upfront cost! With Cirrus LED’s subscribe-to-own model, you get a high-performance sign, full-service install, and lifetime support for one low monthly payment. 🎁 Right now, get 2 months FREE when you subscribe. ✅ No large down payments ✅ 5-year warranty included ✅ Powerful signage software for content and performance tracking 👉 Contact a Cirrus Sign Expert today and start growing your business with the best in digital signage!
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