Sand Helps Trains Grip the Tracks #shorts

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Why does a train spray sand on the tracks? Wouldn't that make them slippery? Actually, sand is used to increase friction between the wheels and rails. In wet or slippery conditions, train wheels can lose traction and start to slip. To prevent this, trains are equipped with a sand-spraying system. The sand falls right in front of the wheels, creating a surface that helps the wheels grip the tracks better, especially when climbing or braking.


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