3 Pieces of Business Advice From Rebeca Hwang of YouNoodle | Business

When I was student at MIT, I learned an important lesson from one of my personal heroes, Amy Smith. Amy invented the “screenless hammer mill” when farmers in Senegal were struggling with the process of separating rocks from grains when making flour. Expensive screens broke all too easily and were hard to replace in poor remote rural villages. Her invention, which was recognized by the Lemelson-MIT Student Prize, looked at the existing problem at a new angle. Instead of screens, she used air flow to separate unground grain and rocks from flour. By applying simple aerodynamics, she eliminated the need for screens altogether and increased grinding rates by 60 times..