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Sunzilla’s open-source, portable, do-it-yourself solar generator
Sunzilla travels as a box that fits on a standard shipping…
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How to build a solar-powered USB charger for…
Part Two in a two-part series. Part One: How to build a…
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How to build a solar-powered electronic circuit
By Charles Sonnenberg and Michaela Collison Special to E4C Part One…
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Can open source hardware change how we farm?
Marcin Jakubowski has a vision of a DIY utopia in which…
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