Practical Answers
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Recycling Plastics: Starting a business
An introduction to plastic recycling looking at the reasons for recycling and the practicalities of small-scale businesses.
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Serpentine Solar Water Heating: Guidelines for Fabrication
The Serpentine is a solar thermal collector developed as part of a low cost water heating system by the AIDG for households in Xela, Guatemala.
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Strawberry Flavoured Jam
Strawberry flavoured jam can be made from ash gourd and artificial strawberry flavouring.
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Coffee Processing
This fact sheet describes the types of coffee, and the techniques and equipment needed for small-scale coffee production.
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Mud as a Mortar
Clay is the inherent binder of soils which are used in building. Such mortars are generally used with adobe and compressed soil blocks.
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Aerial Ropeways of Nepal
An introduction to aerial tramway / ropeway transport in Nepal including tuins, a river crossing mechanism. .
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Passion Fruit Jam
Recipe and method for the small-scale production of passion fruit jam.
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Recycling Used Lead Acid Batteries
Batteries are used whenever electrical energy is needed and are common around the world, but they can be harmful to the environment.
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Basic Beekeeping 1:6
Manual 1:6 looks at how to set up a good apiary
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Basic Beekeeping Manual 1:1
This is the intoductory section to the Basic Beekeeping Manual