CurioFacts on Instagram: "Chinese students are creating DIY holograms using simple materials like transparent plastic sheets, smartphones, and precise geometric angles. By reflecting light at specific angles, they trick the eyes into seeing floating 3D images without any expensive equipment. It’s a clever mix of optics, reflection, and human perception — proving you don’t need high-end labs to demonstrate real physics in action. Likes science experiments, science shorts, short science videos, ed

Solved Problems on Combinations