![Discovery show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/030/810/small/discovery.jpg)
Summary: Quentin Cooper takes a look at the new materials that can mend themselves, from bacteria in concrete which excrete lime to fill cracks, to car paint that heals its own scratches.
Summary: Quentin Cooper takes a look at the new materials that can mend themselves, from bacteria in concrete which excrete lime to fill cracks, to car paint that heals its own scratches.