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'Kinks' in tiny chains reveal Brownian rotation

( -- Rice University researchers have created a method to measure the axial rotation of tiny rods. The technique detailed in a paper by Sibani Lisa Biswal and her colleagues appears this month in the journal Physical ...

dateMay 19, 2011 in General Physics
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Arsenic risk in Pakistan much greater than expected

In many parts of the densely populated plains along the Indus River and its tributaries, arsenic concentrations in groundwater supplies exceed the WHO guideline of 10 μg/litre. Very high concentrations, above 200 μg/litre, ...

dateAug 23, 2017 in Environment
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