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27. Feb 11

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An Engineering Feat : NPR

http://www.npr.org/2011/02/18/133870817/rumbling-u...

In 2009, 1.6 billion people hopped on the New York City subway. But how was it built? MTA Capital Construction president Michael Horodniceanu and historian Clifton Hood discuss the engineering techniq...

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Rumbling Underground

http://www.npr.org/2011/02/18/133870817/rumbling-u...

In 2009, 1.6 billion people hopped on the New York City subway. But how was it built? MTA Capital Construction president Michael Horodniceanu and historian Clifton Hood discuss the engineering techniq...

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