BMW to Use Pomelo Fruit to Protect its Workers | Biomimicry | Scoop.it

"The pomelo is a large citrus fruit, somewhat like a grapefruit, and the structure of its thick rind provides great impact protection when the fruit falls off the tree. BMW, along with a group of German companies and universities, have taken inspiration from nature’s design for new protective gear as part of the Bio-Inspired Safety Systems project. The pomelo’s rind is especially good at impact absorption because it is an auxetic material. This means that when the stuff stretches the substance becomes thicker."