Home / HOME (page 3)


Urban windmills harm the environment


Small windmills have been around for some decades, but in recent years the focus has shifted on developing their potential use in an urban environment (where most of us live). It’s difficult to keep track of the numerous proposednew designs, meant to be placed on the roof or on a …

Read More »

Reinventing the Greenhouse


The modern glass greenhouse requires massive inputs of energy to grow crops out of season. That’s because each square metre of glass, even if it’s triple glazed, loses ten times as much heat as a wall. However, growing fruits and vegetables out of season can also happen in a sustainable …

Read More »

Radical Technology Revisited


Is Progress an illusion? Are catastrophic changes inevitable? Is Technology the problem or the solution? What are the practical alternatives? Such questions were asked 40 years ago in the pioneering book Radical Technology [PDF, 31.5 MB]. The conference Radical Technology Revisited will ask them again with even more urgency. The …

Read More »

Lamella Roofs


A lamella roof, also known as the “Zollinger roof” (after Friedrich Zollinger), is a vaulted roof made up of simple, single prefabricated standard segments (mostly in timber) as a way to span large spaces. The individual pieces are joined together with bolts and/or plates to form a rhomboid pattern. Wooden …

Read More »

Adapted Tools for Organic Farming


L’Atelier Paysan is a French-speaking collective of small-scale farmers, employees and agricultural development organisations who design open source farm tools. Based on the principle that farmers are themselves innovators, they have been collaboratively developing methods and practices to reclaim farming skills and achieve self-sufficiency in relation to the tools and …

Read More »

Rethink, Retool, Reboot: Technology Justice


Practical Action, the international NGO that uses technology to challenge poverty in “developing” countries, has published a new book that is freely accessible online.Rethink, Retool, Reboot: Technology as if People and Planet Mattered is written bySimon Trace. A fifth of the world’s population lacks access to technologies fundamental to a …

Read More »

Equestrian Travel


The Long Riders’ Guild is the world’s first international association of equestrian explorers and long distance travellers. With members in forty-six countries, every major equestrian explorer alive today belongs to the Guild, including Hadji Shamsuddin of Afghanistan, who recently rode a thousand miles through that war-zone, Jean-Louis Gouraud of France, …

Read More »