A cog railway is a type of railway that uses a special system of gears to help trains climb steep hills. This system includes a cogwheel that fits into a toothed track, providing extra grip and allowing the train to move uphill safely, even on very steep slopes. Unlike standard railways, where the train relies on friction between the wheels and the track, the cogwheel helps transfer power, making it possible for trains to travel up mountains or other difficult terrains.

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