The Story of Ampelmännchen

At A Glance First traffic light of the world London in 1868 first signal system has operated on gas. First electric traffic light of the world In 1914 in Cleveland Ohio first electrical signal system began service First signal system in Berlin In 1924 at the Potsdamer Platz  first electrical signal system in Berlin (Today an original replica of the historic green traffic tower you find at the Potsdamer Platz) First set of pedestrian traffic […]

Definition of Liberty

Let me start with the words of the English novelist, essayist, journalist George Orwell: “Freedom is the right to tell people what they do not want to hear.” These words try to describe one of a possible definition of liberty. Many times we are thinking about what we have to do and where our limits lie. Rules, typification and principles, hidden under the coat of liberty and freedom. They promise freedom and by the same […]