S3·E3 Empire State Building, Extracting Copper, Making a Car
Aired February 28, 2007
Synopsis
How do they fix the mast on top of the Empire State Building? And how do they extract copper from the largest man made hole in the world?
Aired February 28, 2007
How do they fix the mast on top of the Empire State Building? And how do they extract copper from the largest man made hole in the world?