Ernst Werner von Siemens demonstrated his Elektromote, the world’s first trolleybus, on a 591-yard (540-m) test track in a suburb of Berlin, Germany. The trolleybus was a converted four-wheel coach equipped with two electric motors. Electric power was transmitted to the coach via a flexible cable from a small, eight-wheeled “contact car” running on the power lines above. How long was the Elektromote in operation? Discuss
Source: The Free Dictionary