How savvy shoppers undermined India's great cash swap

At 8:15 p.m. on November 8, 2016, India's Prime Minister Narendra Modi delivered a surprise address live on national television. He announced that, at midnight, all 500- and 1,000-rupee notes would cease to be legal tender. ...

Enhanced arsenic detection in water, food, soil

It is a cruel paradox that on a planet with a surface mostly covered by water, hundreds of millions of people don't have access to clean drinking water. As for the pollution of potable and natural water sources, one of the ...

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