How Do They Do It?

Season 11 Episode 1: Parmesan, Runways, Reclining Chairs

A look at how to make parmesan cheese, and the key to keeping the runways running at the world's busiest airports. Plus, a look at manufacturing reclining chairs

Genre:

Documentary

Seasons:

17

Episodes:

287

Cast:

Quality:

HD

Duration:

22 min

First Air:

2006

Rating:

7.5