MIT's Guru of Low-Tech Engineering Saves World on $2 a day

Farmers in Peru are working with MIT engineers to design solutions to local challenges. From left: a pedal-powered grain mill; the approach to the town’s water source.

From impoverished Peruvian villages to MIT's D-Lab, professor Amy Smith and her spirited team of engineers are on a mission: Fight global poverty and improve living standards for developing countries—one low-cost, accessible invention at a time.

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