The Volkswagen Group has been in a bad way before. It had rested on the success of the "Beetle" for far too long. With the first generation of the VW Golf and its notchback variant, the Jetta, the ...
It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...