How Do They Do It?
An insider's look at the engineering and scientific miracles behind the things that form the modern world.
13. Macadamia Nuts, Tap Water, Crowd Barriers
0.0Aug 13, 2015 · 22 min
South Africa's macadamia farmers; Chicago's water-filtration system. Also: the use of Mojo Barriers to keep music fans safe at the Pinkpop Festival in the Netherlands.