When did How Do They Do It? Season 3 Episode 9 air?
How Do They Do It? Season 3 Episode 9 aired on March 21, 2007.


An insider's look at the engineering and scientific miracles behind the things that form the modern world.
How do they repair the hull of an 80,000 tonne cruise liner? And how do they keep Europe's longest suspension bridge from collapsing?
Direct answers for episode-level questions and details.
How Do They Do It? Season 3 Episode 9 aired on March 21, 2007.
This episode runs for approximately 22 minutes.
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