The “Rust” on High-Speed Railway Tracks — A Feature, Not a Flaw
When people see reddish-brown railway tracks, the immediate reaction is often concern — “Aren’t those tracks corroding?” But here’s a fascinating truth from the world of railway engineering: that “rust” isn’t a sign of poor maintenance. In fact, it’s a deliberate, high-tech protective layer known as patina, designed to make modern railways stronger, safer, and…