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Why Sand is the Secret Sauce for These Ecuadorian Trains

3,691 مناظر· 12/25/23
Smithsonian Channel
Smithsonian Channel
1,606 سبسکرائبرز
1,606
میں Discovery

Tren Crucero trains rely on sand to go up and down steep inclines: on the way up, sand helps provide the wheels with traction on the steel tracks, while during a descent, it aids the electric...

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