A device to detect lead in water by a 13-year-old innovator | Gitanjali Rao | TEDxGateway

A device to detect lead in water by a 13-year-old innovator | Gitanjali Rao | TEDxGateway

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A device to detect lead in water by a 13-year-old innovator | Gitanjali Rao | TEDxGateway 11:03
A device to detect lead in water by a 13-year-old innovator | Gitanjali Rao | TEDxGateway TEDx Talks
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