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THE SUN DEVICES



Produto disponível no mesmo dia no aplicativo Kobo, após a confirmação  do pagamento!

Sinopse

The Sun Devices contains series of solar tools designed to help individuals and organizations use solar energy. Each is based on ancient designs, simply updated with new materials and needs in mind. Areas include stone techniques, metalwork, recycling, new material synthesis, water/alcohol distillation, cooking and electrical power generation. Most of the devices are inexpensive and easy to build.

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