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S5, E1: Paving asphalt, marshmallow cookies, loudspeakers, and electronic door locks. Where did they come from and how were they made?

Documentary · 7 Sept 2005 · 21 min

Information

Released
2005
Run Time
21 min
Rated
G
Region of Origin
United States
© 2006 Discovery Communications Inc.

Languages

Original Audio
English