3 ms·
>trains on modern rail lines don't make the familiar click-clack sound. What does the click-clack sound have to do with thermal expansion? Is it because the tr
by atentaten 3y ago
>trains on modern rail lines don't make the familiar click-clack sound.
What does the click-clack sound have to do with thermal expansion? Is it because the track is expanding as the train moves over it, if so what’s causing that sound signature?
- mauvehaus 3y agoIt comes from the wheels passing over the joints in the track segments. Track that isn't continuously welded is made of individual pieces of rail joined at the ends with a fishplate: https://en.wikipedia.org/wiki/Fishplate https://en.wikipedia.org/wiki/Fishplate
- Ensorceled 3y agoThe expansion gaps.
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