Water Purification Solution Could Save Lives

The solar water purification method gets enhanced with an electric sensor to tell you when clean water is ready.

Disinfecting water with just sunlight, called SODIS, could potentially be the easiest, most cost-effective solution around for providing clean drinking water in developing countries. Springwise reports today on how it works:

Fill clean plastic bottles with water, then leave them in the sunlight for six to twelve hours and the UV-A rays will kill viruses, bacteria and parasites.


So what's the problem? Well, is the water clean in six hours or 12 hours? Apparently, there's no way to tell when the purification process is completed. But never fear: University of Washington engineering students came to the rescue. They created PotaVida, a sensor that lets you know when the water is pure. They are currently building prototypes.

So what's the problem now? Well, next step is to convince everyone else it works. As Springwise concludes:

PotaVida may have confronted the primary challenge of the SODIS method, but the students will now have to persuade charities and non-profit organizations that their solution is a cost-effective way to save lives.


Image: Water bottles, a Creative Commons Attribution (2.0) image from sskennel's photostream

via Library of Congress

In the months after the Japanese bombed Pearl Harbor in 1941, President Franklin D. Roosevelt authorized the military to move Japanese-Americans into internment camps to defend the West Coats from spies.

From 1942 to 1946, an estimated 120,000 Japanese Americans, of which a vast majority were second- and third-generation citizens, were taken in their homes and forced to live in camps surrounded by armed military and barbed wire.

After the war, the decision was seen as a cruel act of racist paranoia by the American government against its own citizens.

The interment caused most of the Japanese-Americans to lose their money and homes.

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via Michael Belanger / Flickr

The head of the 1,100-member Federal Judges Association on Monday called an emergency meeting amid concerns over President Donald Trump and Attorney General William Barr's use of the power of the Justice Department for political purposes, such as protecting a long-time friend and confidant of the president.

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North Korea remains arguably the most mysterious place on Earth. Its people and modern day customs are shrouded behind a digital and physical wall of propaganda. Many people in the United States feel that North Korea is our "enemy" but almost none of us have had the opportunity to interact with an actual person who lives in, or has lived under, the country's totalitarian regime.

Even more elusive is what life is like in one of North Korea's notorious prison camps. It's been reported that millions live in horrific conditions, facing the real possibility of torture and death on a daily basis. That's what makes this question and answer session with an escaped North Korean prisoner all the more incredible to read.

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