Part 12/12:
In essence, the seemingly simple act of a train rolling past a crossing embodies over 150 years of engineering refinement. It showcases how understanding physics—like friction and pressure—and applying mechanical ingenuity—like draft gears—can create extraordinary capabilities. The next time you see a long train gliding steadily along the tracks, remember the impressive science and engineering marvels working behind the scenes, pulling thousands of tons with a machine that weighs less than a hundred cars.
Science, engineering, and a dash of mechanical magic—this is what makes modern rail transport possible.