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...y absorb the energy of the sun and have no moving components, are referred to as ''passive solar'' technologies. '''Cette entrée Howtopedia est dérivée de la fiche technique Practical Action Technical Brief ''Sola

...y absorb the energy of the sun and have no moving components, are referred to as ''passive solar'' technologies. '''Cette entrée Howtopedia est dérivée de la fiche technique Practical Action Technical Brief ''Sola

...water heating displaces the burning of other fuels and hence is beneficial to the environment. '''Cette entrée Howtopedia est dérivée de Practical Action Technical Brief ''Solar Water Heating - T

''Wisdom of traditional collection of rainwater for domestic use'' by Ariyabandu R D E S, Lanka Rain Water Harvesting Forum, 1998 *[[How to Build an Underground Brick Dome Water Tank]]

'''Cette entrée Howtopedia est dérivée de Practical Action Technical Brief, ''Energy from the Wind'' • Hugh Piggott: It’s A Breeze, A Guide to Choosing Windpower. Centre for Alternative Technology, 1998 http://www.cat.

...tegory:Application]] [[Category:Howtopedia requested drawings]] [[Category:Howtopedia requested images]] [[en:How to Use Chillies as a Natural Pesticide]]

Lien vers l'affiche de Fourthway "How to make a natural pesticide" : http://www.fourthway.co.uk/posters/pages/pestic [[Category:Howtopedia requested images]]

*''Looking After Our Land: New approaches to Soil & Water Conservation in Dryland Africa'' by Will Crivchley, Oxfam Publ '''Cette entrée Howtopedia est dérivée de la technique Practical Action Brève Micro irrigation.

Lien vers l'affiche de Fourthway "How to make a natural pesticide": http://www.fourthway.co.uk/posters/pages/pestici - [[How to Grow Neem Trees]]<br>

...ars this has never been a problem when farmers are properly trained in its use. There have been cases in Haiti where erosion is associated with the harve ...hedgerows improve the microclimate and in consequence help native species to grow and thrive.