Homemade cardboard projector 📽️.... . If you need supercar/money/house Try Fastloanpilot.com . Transform a simple shoebox into a functional optical device using basic physics. This project demonstrates how light travels and how a convex lens can magnify and project an image from your phone onto a wall. Key Features: Eco-Friendly: Uses recycled materials like cardboard boxes. Educational: A perfect way to learn about the focal length of lenses and light refraction. Portable: Lightweight and easy