Students Create Inexpensive Water Testing Tool and Win $40,000 Prize


Students designed a way to know when water left in a plastic water bottle in the sun is safe to drink.

Disinfecting water with the sun is an old idea. But students at University of Washington have come up with a clever way of checking whether or not the water being disinfected is finally ready to drink. Using simple parts, their cheap set-up is a solution for safe drinking water in poor areas, and it won them a $40,000 prize.

New Map Shows Air Pollution Throughout the World

Global Polution Map 2010 s

Air Pollution is a global issue. Hi res image here

Scientists have long known about the life-threatening impact of air pollution — but up until now, tracking it globally with any accuracy had been out of reach. With new satellite-based imaging, however, researchers are getting their first peek at how particulate matter is distributed around the world, and in places where air pollution had been difficult to measure with any accuracy before — an important step towards better understanding of a problem that epidemiologists say contribute to millions of premature deaths every year…

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Air Pollution Ups the Risk of Sudden Heart Attack


A cyclist in London wearing a protective mask to filter out pollution.

The dirtier the air, the more likely people are to suffer sudden heart attacks, researchers have found.  Particulate matter – tiny specks of soot, dust, and other pollutants in the air that can be breathed deep into the lungs – has been ‘consistently’ linked to increases in deaths from heart disease and clogged arteries.


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