How Do They Do It?

Season 7 Episode 18: Lawnmowers, Bread, Clean Water

How do they build the world's fastest lawnmowers; how do they set the price of bread; and how do they use coconuts to clean water?

Genre:

Documentary

Seasons:

17

Episodes:

287

Cast:

Quality:

HD

Duration:

22 min

First Air:

2006

Rating:

7.5