It’s 50% stronger than comparable materials used in aerospace. Using lasers and metal powder, Australian scientists have created a super strong, super lightweight new “metamaterial” — but they got the idea for this sci fi-sounding creation from plants.The challenge: Materials that are strong yet lightweight, such as carbon fiber and graphene, are used to make everything from medical implants to airships, and developing ones with ever greater “strength-to-weight ratios” is the goal of many materi...