railways expand on hot day because the particle are moving faster, which makes it need more space so it expands:)
They often get messed up, and must be repaired.
No. Railway tracks are only the rails and ties/sleepers and hardware used to hold the track in place. A railway line is a set of tracks designed to move a train between at least 2 points. A railway line can consist of many tracks.
France has more railway tracks than Belgium.
Yes
Expansion, example the railway tracks. This is because when the metal expands on hot days, the track doesn't bends
When you look at a stretch of railway track, you will notice spaces in between the metal tracks. The reason for this is that metal will expand when it grows warmer, and will shrink when it grows colder. These gaps allow for the metal to expand, so that when it is an extremely hot day, the railway tracks won't bend all out of shape causing trains to derail.
Contraction is the reason that railway tracks sound louder in winter.
France has 29,901 kilometres of railway.
steel
Railway tracks
Hot on the Tracks was created in 1976-06.
shiet