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How to develop a product cradle-to-grave at Maker…
For a few days every year at Maker Faire, the world…
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Help finish the open source lathe construction manual
The construction manual for an open source screw-cutting lathe is nearly complete,…
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The best appropriate technology DIY plans
In off-grid communities where lights at night could improve grades and…
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A sneak peek at IEEE’s upcoming Global Humanitarian…
Preparations are underway for one of the world’s most unusual, and…
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Five Questions with Peter Haas
In 2005, Peter Haas founded the Appropriate Infrastructure Development Group as a…
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How to write a proposal for development work…
While working in low-resource regions around the world, I have received…
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The concrete lathe: World War I technology meets…
In the fall of 1917, the United States had declared war…
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Meet Aaron Melamed, E4C’s 5000th member
In June, the number of Engineering for Change members hit 5000…
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E4C’s YouTube project: Essential playlists for appropriate design
Take a look at our playlists, in the right-hand margin of…