Understanding Bridges
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John A. Roebling: Brooklyn Bridge
When New York's leaders contacted John Roebling for help on the Brooklyn Bridge, he was already a well-known engineer -- but was he up to the task? Tune in and learn how Roebling used his cable designs to spin the Stuff of Genius in this episode.
Really Big Things: Magdeburg Water Bridge
The Germans took over a century to build this water bridge. See how revolutionary the Magdeburg Water Bridge really is. Check it out with host Matt Rogers on Discovery Channel's series, "Really Big Things."
How Drawbridges Work
A drawbridge is a bridge over a body of water that opens up to allow boats and ships to pass through. Watch this video from HowStuffWorks to learn how it works.