Practical Action Publishing
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Considerations, design calculations, construction, test and evaluation of a cavity walled solar oven Part 2: Evaluation of insulation materials
This report is Part 2 of- (and an addendum to-) the Part 1 of: “Considerations, design calculations, construction, test and evaluation of a cavity walled solar oven”. Both Part 1 and Part 2 of the report are based on a cavity walled solar oven consisting of two boxes – one within the other – with a...
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How to Build a Solar Oven out of Scraped Materials
This is a brief guide-line on how to build a solar oven - based on experiences with building a homemade solar ovens, at the lowest possible cost, with simple tools and using scraped materials. It is aimed to reduce the need for fire wood and other fuels in refugee camps.
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Thermal Tests of the 'Solar Oven revision 2'
This report describes the thermal test of the solar oven revision 2 - built in August 2024. The aim is – based on the thermal measurements at the oven – to find out – for a given irradiation - how much the solar oven can rise its temperature T above the temperature of the ambient TAmb. - and how fas...
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Alternatives to Portland Cement
Cement is an important binding agent in concretes, mortars and renders, and is used for the production of walling blocks and roofing tiles.
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Drip Irrigation ?System
A drip irrigation system delivers water directly to the root zone of a plant, where it seeps slowly into the soil one drop at a time. This document describes gravity operated drip irrigation system suitable for poor communities and households.
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Operation and Maintenance of Water and Sanitation Infrastructure
The training module developed for sanitation and hygiene education
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Passion Fruit Cultivation
Passion fruit is a rustic, adaptable crop used in foodstuffs and medicine at both small and industrial scales.
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Plantation, production and use of biofuels at the community level
Plantation, production and use of bio fuels at the community level is a compilation of the results and processes undertaken in key sections of the project; harnessing bio fuel; plantation, oil expelling, processing and application.
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Lessons from the Zapatistas
Lia Pinheiro Barbosa, Peter M Rosset, Henry Veltmeyer
Lessons from the Zapatistas is essential reading for anyone interested in liberation, democracy and radical social transformation. It tells the story of the Zapatista insurgency and its afterlives, tracing how an Indigenous uprising burst forth from southern Mexico’s Lacandon Jungle to stage the 21s...
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The Congress of the Disappeared
“They came forward gradually, most of them alone, just as they had been during the times of clandestinity. They looked shocked by surroundings they were unused to, by the scenes of misery and destitution which had shocked me too, particularly striking there in the cathedral square, and at the foot o...