LED it be

John Lennon and Paul McCarteny knew already some 45 years ago the shape of things to come.

"...And when the night is cloudy there is still a light that shines on me / Shine until tomorrow..."

This wisdom is articulated in the popular song Led it be.

And this years Nobel prize in physics goes to Isamu Akasaki, Hiroshi Amano and Shuji Nakamura for inventing the energy-efficient and environment-friendly blue light-emitting diode: LED!