Why Are Train Tracks Shaped Like an 'I'? (It’s Genius)

By Simple Things - Surprising Histories

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Train tracks may look simple, but their shape is the result of nearly two centuries of engineering refinement. In this video, we explore why modern railway rails are shaped the way they are, how early wooden tracks evolved into today's steel rails, and the brilliant physics that allows trains weighing thousands of tons to travel safely and efficiently. Why Are Train Tracks Shaped Like an 'I'? (It’s Genius) | Simple Things Surprising Histories This documentary-style episode from Simple Things Surprising Histories uncovers the fascinating history and engineering behind one of the most overlooked inventions in modern transportation. From early wooden wagonways and iron strap rails to Robert L. Stevens' revolutionary flat bottom rail, discover how a simple shape transformed rail travel around the world. Topics covered in this video: • Why train rails are shaped like an "I" • The history of the earliest wooden railways • How iron strap rails improved early tracks • Why L shaped plate rai

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