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Manual for building serpentine solar water heating system with the basic of installation guides and a list of component materials.
Manuel pour la construction de serpentine système de chauffage solaire de l'eau à la base des guides d'installation et une liste des matériaux qui le composent.
A simple fly trap made from two plastic bottles.
A manual on how to train people in the construction of a ferrocement "pumpkin" water tank.
A document about the design and construction of low-cost fish cage in Bangladesh.
Compact biogas plant which uses waste food rather than manure as feedstock, to supply biogas for cooking.
A simple device for washing your hands after going to the toilet.
This brief looks at some of the issues of participatory planning in general and what differences might be found between urban participatory planning and rural participatory planning.
This section explains how to make a movable comb top bar beehive.
This section of Basic Beekeeping describes how to make a simple bee veil.