Black Moses leader of the underground rail road?
The underground railroad was important to many slaves because of there skin color they were beginning sold to people and they were beginning separated from there family and beginning told what to do. Now they would follow the north star at night and if they see a quilt and if there is a blue color in the middle it is the Underground railroad but you have to be careful because it can be a trick…
The trains are powered by electric motors. Electricity is provided to the trains via the third rail, an electrified rail which runs along the tracks parallell to the "running rails" (which actually guide the train) and the trains have runners which transmit the electricity to their motors inside. Whereas mainline railways tend to have one third rail, the London Underground actually has two.