Engineering & Science - In some parts of South Africa, many kids don’t have electricity at home. After school, they walk long distances on busy and sometimes unsafe roads. Once they get home, they need to finish homework before it gets dark, because there’s no light to study by. Thato Kgatlhanye saw this issue in her hometown, Rustenburg. So, at just 21 years old, she decided to help. She co-founded Repurpose Schoolbags, a company that takes old plastic bags and transforms them into...