A machine installed in England could be about to change the way that race horses are trained forever.

Roller coaster engineers developed the £20 million jockey-less system and they aimed to reduce the risk of injury to young horses by eliminating human error. However, as one champion jockey said, only time will show whether the system works. The ¡®monorail¡¯ runs a 1.5-kilometre track.

Difficult words: monorail (a railway of a single rail).