Wang Fang posted an update in the group
Discovery 4 years, 7 months ago
The World’s First Uncuttable Metal, Named “Proteus,” May Have Been Developed By European Engineers. The Metal’s Cellular Structure, Filled With Ceramic Spheres, Blunts Any Cutting Object Making The Metal Suitable For Thief-Proofing Chains And Locks. The Cellular Skin Of Grapefruit And The Shells Of Molluscs Inspired The Metal Molecules.