Among the things I learned this week:
* Felled and properly laid trees can stop tanks. (Courtesy: War is Boring)

* Fake wine is a significant issue in the wine world. (Courtesy: Kate Krader/Bloomberg)

* Flying’s nine freedoms. (Courtesy: Paul McClean and Alex Barker/FT)

* Contrary to an earlier Things I Learned this Week post, Brazil does not ban coffee imports. (Courtesy: Joseph Leahy and Emiko Terazono/FT)