PHOTO: BUNDESARCHIV, BILD 102-10300/PHOTO: GEORG PAHL

One of the oldest industrial exhibitions in Germany, the Internationale Funkausstellung Berlin has been the launchpad for world-altering tech from the first car radio to the digital TV. So enormous was its status that Albert Einstein addressed the show in 1930. In his short, jokey keynote, the frizzy-haired genius playfully admonished listeners to avoid falling into the trap of knowing "not more of" the wonders of science and engineering underlying the burgeoning medium of radio "than a cow realizes of the botany of the plants which it eats with pleasure."