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finished basket solarcooker Solar Heater From Can Lids and Woven Plants

An interesting experiment from students in a course at Humboldt State University called Appropriate Technology Engineering 305. The parabolic form is essentially a large, shallow basket woven with fibers of locally-gathered Himalaya blackberry, which the students identify as an invasive species. In good weather, their dish could boil a jar of water in about two hours. I always like to see the clever thinking that can result from radical design constraints. [via No Tech Magazine]

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Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


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