8. Semi Tractor Trailer
Aired Sep 28, 200860 min
How do you build a semi tractor-trailer capable of pulling up to 80,000 tons and make it fuel efficient? Brian Unger finds out at the Peterbilt factory. Then, he heads to Upper Sandusky, Ohio to make a shotgun that's been around since 1937.
Your diary entry
Sign in to log when you watched this episode, add your rating, and write a review.
Sign in →