The Wheel of Time by Robert Jordan Photo: RNZ
Cuendillar, or Heartstone, is an almost indestructible substance from The Wheel of Time book by Robert Jordon. It absorbs any force attempting to break it. Dr Matt Cowan, Associate Investigator with the MacDiarmid Institute and a Senior Lecturer in Engineering at the University of Canterbury describes it's properties and whether we have any materials in real life that can compare.
