How Do They Do It?

Swiss Cheese, Tanks, British Library

How do they put the holes in Swiss cheese? How do they restore and improve a classic battle tank? And how do robotic librarians run one of the world's biggest...
Aired: Jul 01, 2011 Genre: DocumentaryDuration: 22m Rating: 0 Country: Canada, Singapore, United Kingdom, United States of America Production: WAGtv