This 18-year-old Invented a Way to Charge Your Phone in 30 Seconds
When I was in high school, my science teacher gave the class an assignment: Think of a problem that occurs in every day life, and invent a solution. I rather lamely produced a velcro-padded baseball mitt that stopped the ball from rolling out after you caught it.
Today's young people see the world a bit differently. Eesha Khare, tired of her cellphone battery always dying, invented a device called a supercapacitor that can charge your phone in 20-30 seconds—and then won $50,000 prize for it.