29-year-old woman invents machine that turns plastic waste ...
A Kenyan woman invented a brick stronger than concrete that's made entirely of recycled materials like plastic. Nzambi Matee is the 29-year-old inventor and founder of Gjenge Makers, which manufactures affordable building blocks.In 2020, the United Nations Young Champions of the Earth Program selected Matee as a regional winner. "Plastic waste is not just a Kenya problem, but it's a ...