Scientific American
http://www.scientificamerican.com/
10 September 2012
A Human-Powered Refrigeration System To Save Lives In Developing Countries
Ariel Schwartz
It’s a big enough feat to ship much-needed vaccines to rural areas of the developing world. Finding a way to keep those vaccines refrigerated in places that have spotty access to electricity?
http://www.scientificamerican.com/article.cfm?id=a-human-powered-refrigeration-syste-2012-09