October 5, 2009
EarthSky
Ashok Gadgil's inexpensive inventions address big problems of world's poor
Interview by Jorge Salazar
Dr. Gadgil has a long list of inexpensive inventions he’s developed that address big problems, including a simple cook stove for families in Darfur that’s three times as efficient traditional ones. And he developed a water purifier that uses ultraviolet light to produce clean water for 1,000 people each day....
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