After America, China and Russia, Indian Railways is the fourth largest rail network in the world. Even today, most people in the country prefer to travel by train, especially for long journeys. Because it is considered quite economical and comfortable. But do you know why the stones you see on the railway tracks are laid? Today we will tell you why there are stones on the railway tracks.
railway track
While travelling in a train, you must have noticed that a large number of stones are laid on the railway track. Big stones are also laid under these stones. If you want to understand the science behind these stones, then first you have to understand the structure of the track. Actually, most people feel that the tracks are laid directly on the ground and stones are put on it. But this is not the case. The track is not as simple as it looks. If you look at it closely, you will find that it is prepared with many layers.
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How are railway tracks laid?
While preparing the track, long plates are laid beneath it. These are usually called sleepers. There are small stones beneath them, which are called blasters or ballast in common language. There are two layers of soil beneath the blasters. This is the reason why the railway track appears at a little height from the ground and when the train runs on the track, these stones, sleepers and blasters handle the weight of the train.
The science behind the stones
According to science, when a train runs on a track, it produces a kind of vibration. These pointed stones prevent the track from spreading due to the vibration. Let us tell you that if these stones are round, then they will not be able to stop the vibration and in such a case the track will spread. That is why pointed stones are laid on the track.
Tracks do not sink even in rain?
Apart from this, there is another specialty of these stones. Due to these stones lying on the tracks, no plants grow on the track. Due to which they do not obstruct the train. Due to these stones, the railway track is also high, so whenever there is waterlogging during the rainy season, the track does not submerge and the train keeps moving smoothly.
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