Schoolgirl invents low-cost lead detecting device
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SinfulKisses2 38yo Hot N Spicy, New Mexico, United States
Gitanjali Rao's device uses carbon nanotubes to detect the presence of lead in water. more on Geo altCom
lik2watch71 40yo Northampton Area, Massachusetts, United States
tad022809 24yo Toledo, Ohio, United States
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