Did you know? 1. The world's strongest material is graphene, which is 200 times stronger than steel and conducts electricity better than copper. 2. Aerogel is the lightest solid material on Earth, with a density of just 3 mg/cm³, making it almost invisible. 3. Shape-memory alloys, such as nitinol, can remember their original shape and return to it when heated. 4. The strongest natural material is spider silk, which is five times stronger than steel of the same weight. 5. Kevlar, a synthetic fiber, is used in bulletproof vests due to its high strength-to-weight ratio. 6. Liquid crystals have properties of both liquids and solids, and are used in displays like LCD screens. 7. Carbon nanotubes are incredibly strong and conductive, with potential applications in electronics and materials. 8. Superconductors can conduct electricity without resistance, and can levitate magnets due to their unique properties. 9. Agar, a substance from seaweed, is used to create biodegradable packaging materials. 10. Memory foam was initially developed by NASA to improve seat cushioning, but is now used in mattresses and pillows. Material science is a fascinating field with many innovative materials that have transformed various industries.