11 Year Old Invents Water Quality Detection Device

Openhearted Rebel

Featured image: Rao demonstrating her prototype. Credit: Fast Company

Gitanjali Rao says “I believe that everyone has a right to know if their drinking water is safe or not.”

By Amelia Kinney, True Activist

11-year-old Gitanjali Rao had a vision of making water quality easier to detect. Her invention, the Tethys, uses carbon nanotube sensors to detect lead. The device connects to a mobile app to instantly report the water quality information.

“Before I had the idea for my solution, I noticed articles about how there was no solution to detect lead in water that is fast, easy, and inexpensive,” Rao told Fast Company in an interview. Rao recently graduated from 6th grade at Brentwood Middle School in Brentwood Tennessee. Her invention earned her finalist placing in the 2017 Discovery Education 3M Young Scientist Challenge.

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