Hannah Herbst is the 15-year-old inventor who developed a low cost method of producing energy from ocean currents. Her idea won her the top prize of the 2015 Discovery Education 3M Young Scientist Challenge, $25,000 cash....
Hannah Herbst is the 15-year-old inventor who developed a low cost method of producing energy from ocean currents. Her idea won her the top prize of the 2015 Discovery Education 3M Young Scientist Challenge, $25,000 cash....