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Bill Gates wants to reinvent the toilet for the Third World

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Bill Gates wants to reinvent the toilet for the Third World

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Bill Gates thinks the modern-day flush toilet isn’t good enough. Most of the developing world can’t afford to use it, and poor sanitation spreads diarrheal diseases. So the Gates Foundation is challenging univer...

Fighting blindness in the Third World

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Fighting blindness in the Third World

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Thanks to the persistent and ingenuity of two doctors, Sanduk Ruit and Geoff Tabin, victims of cataract in the Third world now move toward a future of regaining sight. Cataract, which is the clouding of the cryst...