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The longest train in the world

This video is about the longest train in the world. But it’s not actually about the longest train in the world, because the simple answer to that question is really boring: four and a half miles long. No big deal. What’s far more interesting is how long the longest set of continuous tracks could be. The trick is this: countries have different gauge train tracks, so trains can’t easily travel between countries. This video describes how trains get around that problem.

Full story at YouTube.

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