Schoolgirl invents low-cost lead detecting device
Gitanjali Rao's device uses carbon nanotubes to detect the presence of lead in water.
from BBC News - World http://ift.tt/2ASJInu
from BBC News - World http://ift.tt/2ASJInu
Schoolgirl invents low-cost lead detecting device
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Reviewed by Daily Trends Times
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December 03, 2017
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