A ninth-grader from Midway High School in Waco, TX found inspiration from the ordinary household chore of lawn-mowing to come up with a fuel cell that uses grass clippings as a source of energy. Edward Kim‘s invention is currently a finalist in a national science competition.
Kim made use of the bags of grass clippings he accumulated from mowing his lawn to design a fuel cell that has roughly the same voltage as that of an AA battery. He shared that he can recommend this fuel source for people stuck in emergency situations such as natural calamities.
The Discovery 3M Young Scientist Challenge has included Kim in the list of their finalists, which was narrowed down from thousands of entries. In this contest, the students were tasked to film a 1-2 minute video featuring a new means to solve a typical everyday problem. The grand winner will win $25,000, a trophy and a trip to China, Costa Rica and the Galapagos Islands, sponsored by Discovery Student Adventures.
Last summer, Kim was also chosen as a finalist, and has since then been writing for the 3M Young Scientists Challenge site while developing his project with 3M mentor and advanced research specialist, Kris Thunhorst.