How Do They Do It?

Tractors, Cow Bells, Street Lights

How do they build a tractor every three minutes to power Indian agriculture? How do they cast the bronze bells that help Swiss farmers keep track of their cows?
Aired: Jul 11, 2019 Genre: DocumentaryDuration: 22m Rating: 10 Country: Canada, Singapore, United Kingdom, United States of America Production: WAGtv