Simple Solar DIY: Building a Fresnel Solar Cooker - http://ift.tt/1thzwMj Dave Steen Cooking is a rather natural use for solar power. We all know how the sun warms things that it strikes, leaving the inside of our cars hot and making us sweat on a sunny day. Many of us have also played with magnifying glasses as kids, using them to light dried leaves and scraps of...

lundi 26 janvier 2015

Simple Solar DIY: Building a Fresnel Solar Cooker - http://ift.tt/1thzwMj Dave Steen Cooking is a rather natural use for solar power. We all know how the sun warms things that it strikes, leaving the inside of our cars hot and making us sweat on a sunny day. Many of us have also played with magnifying glasses as kids, using them to light dried leaves and scraps of...

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