Explain on Instagram: "Geometry isn’t just a subject on paper — it’s a powerful tool that shapes the world around us. In this clip, simple sand becomes a medium to explore geometric forms, showing how lines, angles, and shapes can be created with nothing more than a stick and a steady hand. For centuries, cultures across the world have used sand to visualize mathematical ideas. Traditions like Angola’s Sona patterns used sand drawings to teach logic, symmetry, and storytelling. Even today, archi