A 12-Year-Old Invented a Life-Saving Device

Did you know a 12-year-old invented a device that can detect lead in water in under 10 seconds

and it costs less than $30 to make? While most kids her age were worried about their Instagram

followers, Gitanjali Rao was literally saving lives with technology she built in her

basement. Now, this kid's name is Gitanjali Rao, and Gitanjali is

12 years old and she's living in Lone Tree, Colorado. And Gitanjali,

she's just a regular middle schooler. Like, she loves baking, she plays the piano,

and she's obsessed with reading Harry Potter. But Gitanjali has this thing where

she cannot stop asking questions about how technology can solve real problems, like,