His cell phone. He buys data 5 euro at a time from a shop in the town or goes to cafes to download English and engineering textbooks. That's what my wife's thesis project is about - specifically figuring out the best ways to share useful information with refugees who have cell phones but not much else, especially women who might not have a chance to go out in public much, or have a formal education. It's not my field at all but I find her work to be fascinating.

If you're interested, This American Life just did two whole episodes from a Greek refugee camp. In the second episode they interview a guy who patched into a power line under a tree to charge 6 cell phones at once! The group that both TAL and my wife were talking to is really doing good work, they're called the Greek Forum of Refugees.

http://www.thisamericanlife.org/radio-archives/episode/592/a...