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How Blue LEDs Changed the World
5:34
YouTubeBloomberg Originals
How Blue LEDs Changed the World
Not only are small, energy efficient LEDs used in almost every piece of modern electronics, they have the greatest potential impact on energy savings globally. But LEDs didn't have much use until the '90s, when Japanese scientists discovered the missing link needed to complete the color spectrum: The blue LED. Video by Robin Fall Like this ...
1.7M viewsApr 26, 2019
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Japonya ayak seslerini elektriğe dönüştürmek için piezoelektrik fayanslar kullanıyor. Bu fayanslar ayak seslerinden kinetik enerjiyi yakalıyor. Yürürken ağırlığın ve hareketlerin fayanslara baskı yapar. Fayanslar hafifçe bükülecek ve mekanik stres yaratacak. Fayansların içindeki piezoelektrik materyal bu stresi elektriğe dönüştürüyor. Her adım küçük miktarda şarj yaratır ve milyonlarca adım birleşince LED ışıkları, dijital ekranları ve sensörleri çalıştırmak için yeterli güç üretir. Shibuya İsta
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