Practical Answers

The Technical Information Service of Practical Action

Practical Action has been using appropriate technology to help people in the developing world for more than four decades. Within Practical Answers section of this site you will find a knowledge bank of these technologies so that you can take them and replicate them. If you can’t find what you are looking for you can ask a question through our technical enquiries service. More information

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Featured Articles


Bicycle Trailer Hitch

  • fact sheet
  • English

This is a simple design for a bicycle trailer hitch that can be made in a local workshop from a small quantity of...

Dr David Poston , Published by Practical Action on 07/01/14


Delivery Model of Wood Gasifier Stoves in Sri Lanka

Instead of burning the fuel-wood with a complete combustion to generate heat directly, a wood gasifier stove, which...

  • English,
  • fact sheet

Energy Demand and Resource Assessment Study in Medadumbara Divisional Secretariat, Sri Lanka.

This brief report summarizes the grassroots-level energy demand and resource assessment study that was carried out...

  • English,
  • fact sheet


Time and Distance will not matter now….

In a diverse and vast nation like India, 68.7%of the population inhabits rural areas (Source Worl...
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