I'm excited to share that on #WorldChildrensDay2021 I was appointed as @UNICEF Youth Advocate to advance children's rights. Around the world, young people are raising their voices to create a better future for every child. Go to @voicesofyouth to meet other young advocates. https://t.co/szMlB6woCn
— Gitanjali Rao (@gitanjaliarao) November 21, 2021
She was ten-year old when she watched the coverage of Flint water crisis on television. The water of Flint river had got contaminated and the same was being supplied to the local communities. She also remembered falling sick after drinking water from her grandmother’s house in India way back when she was just a four-year old.
Based on these experiences, Gitanjali came up with her first major invention - sleek and inexpensive handheld device that she calls Tethys. Run on a 9-volt battery, the device uses carbon nanotubes to detect the harmful element in the water and conveys the information through Bluetooth. If lead is present in water, it will get deposited on carbon.