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Great list of papers/reports/resources: Included are WHO/UNICEF factsheets, guidance on making chlorine solution, Ebola-related anthropological studies and other resources. http://sanitationupdates.wordpress.com/2014/10/31/washplus-weekly-focus-o

Great list of papers/reports/resources: Included are WHO/UNICEF factsheets, guidance on making chlorine solution, Ebola-related anthropological studies and other resources. http://sanitationupdates.wordpress.com/2014/10/31/washplus-weekly-focus-o

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bernhard commented on The sea snake

just saw a documentary on arte today on varius methods of harvesting energy from the ocean.
these snakes seem to be still in a very early stage of development.
the cost is quite high and output relatively low.
@ jamie dean: they mentioned to just run cables underwater.

the greatest challenge with this snakes seem to be that they are optimized for a very specific wave, which might only occur in a distinct season. the rest of the year the system runs below maximum efficiency.
and one of the greatest challenges is to make them robust enough to withstand high wind speeds + waves - tsunamis etc

smaller setups seem to be more robust and rely on smaller waves. ...also they are probably cheaper to develop or even produce in a DIY fashion?

unfortunately the documentary seems to be only available in german:
http://www.arte.tv/guide/de/051384-016/x-enius

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bernhard commented on It Takes a Village App

maybe this person might be able to help;
http://redwood.colorado.edu/apierce/mad/fall12/Neil%20Mobile%20Apps%20for%20Microfinance.pdf

stumbled across this slides the other day by accident.

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bernhard commented on Core Charges

cool I never heard of that - seems to only exist in the US?
here in austria we had an very widespread bottle deposit system in the 90ies but it got pushed back over the years because it was "too inconvenient" for the consumers :(