Life-Changing Inventions

Since 1993 the Lemelson-MIT award has recognized and supported inventors whose designs improve lives. This year’s winner helped bring light, cook food and purify water for millions in poor countries.

The Lemelson-MIT Program recognizes inventors whose designs improve lives. This year’s winner of the Lemelson-MIT Award for Global Innovation, Ashok Gadgil, helped bring light to 100 million people in the developing world, designed fuel efficient cook stoves, and a simple way to purify water. He spoke with host Bruce Gellerman.