Solar Water

This tiny device could provide clean water for 663 million people.

It’s tiny, it’s solar powered, and it’s awesome.

A tiny, black rectangular device could be the world’s long-term solution for clean water. The gadget is solar-powered, half the size of a postage stamp, and it disinfects water.

Our device looks like a little rectangle of black glass,” said Chong Liu, lead author of a paper on the device published in Nature Nanotechnology. “We just dropped it into the water and put everything under the sun, and the sun did all the work,” she said.

With 663 million people in the world not having access to clean water, a device this efficient stands to significantly change many lives. Roughly 800 children die a day due to lack of access to clean water.

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