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26 incredible innovations that improved the world in 2015
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26 incredible innovations that improved the world in 2015

Mashable - Matt Petronzio

From the start, 2015 was ripe for world-changing innovation. In early January, we saw Bill Gates drink clean water converted from sewer sludge and human waste by a special processor. In February, social workers and computer scientists came up with an algorithm to prevent the spread of HIV among …

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