Super Explorers bring you interesting facts and full-colour photos all about big and fast trains. - Trains can move freight and goods or people across the city or country. - Early trains were pulled by horses; then came the steam train. Newer trains can be electric, diesel or even powered by magnetic levitation. - Some trains go as fast as 300 kilometeres per hour. - One of the longest rail tunnels in the world is under the English Channel, connecting...