Whyfied on Instagram: "🔵 The Man Who Changed the World With Blue Light 💡 Japanese scientist Shuji Nakamura achieved what many experts once believed was impossible—he invented the first practical blue LED. For decades, scientists could make red and green LEDs, but blue light remained unsolved. Nakamura’s breakthrough completed the RGB trio, making white LED light possible for the first time. This single invention transformed modern life. Smartphones, TVs, computer screens, LED bulbs, traffic li