@ourworldorigins: Why Railroad Tracks Change With Temperature Steel expands when it gets hot and contracts when it gets cold. Older jointed rail used gaps to accommodate movement, while modern continuously welded rail manages thermal forces differently. #Engineering #Railroads #HowThingsWork #TrainTechnology #civilengineering

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Friday 11 September 2026 16:55:00 GMT
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ourworldorigins
Our World :
Modern continuously welded rail doesn't simply depend on gaps everywhere—the track is engineered and maintained to manage temperature-related forces.
2026-09-11 21:57:13
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