Looking for impurities in drinking water or other liquids typically involves chemical analysis, which may be time-consuming. Now, however, scientists have created an inexpensive system in which light – that's converted to sound – is used to instantly determine if water is safe to drink.
.. Continue Reading Laser "pinging" shows promise for fast and cheap water testingCategory: Science
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from New Atlas (Gizmag) https://ift.tt/2NHLajL
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