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A modular irrigation pump that grows with the…
An experimental water pump starts small and builds up with modular…
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10 Solar Cookers That Work at Night
The solar cooker is finally getting a practical overhaul. With few…
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Ten low-tech ways to irrigate crops
Irrigating a farm can double the amount of food it produces.…
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How Kibera is turning trash heaps into businesses
Update – Feb. 13: Kounkuey is hiring engineers and accepting interns. See below for…
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A waste-treating hydrogen production plant in a shipping…
This innovation is one of ourPromising Prototypes of IEEE’s Global Humanitarian…
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Promising prototypes at IEEE’s Global Humanitarian Technology Conference
We saw the surge of ingenuity that engineers can attain when…
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Salinity sensors boost yields on shrimp farms
This innovation is one of our Promising Prototypes of IEEE’s Global Humanitarian…
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Local production: The case for and against
A version of this interview was originally published in the first edition of…
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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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How to Build a Wood-Burning Institutional Stove
The clean-burning stove is an old warhorse of design for developing…