use of Data and how it varies in different cultural habits
winner of the 2005 index award; based on textile filters; cleaning water (bacteria and sediments); not able to filter arsenic, iron, fluoride or other heavy metals
interesting product concept for an oil burning stove; if it´s possibile to produce your own oil (out of coconut´s etc.); therby sustainable in development aid; better than solar stove, you can also cook after sundown
all about the interesting work of michael braungart
as simple as possible, i never tried it.
a project done by a friend of mine; did some research about this – great work