Keith Kellett's Blog – June 2015 Archive (1)

The Allure of Mountain Railways

 

The whole purpose of a railway is to reduce the friction of the wheels, to enable a heavier load to be carried for the same amount of power. That lack of friction works against the train if it has a steep slope to climb or descend. The usual way is to tunnel through the hill, avoiding the slope altogether.

 

This, though, is very expensive, and,…

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Added by Keith Kellett on June 13, 2015 at 7:42am — No Comments

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