The next-gen of indestructible bridges could be possible, thanks to research from the University of Warwick. Emeritus Professor Wanda Lewis in the School of Engineering has taken a design process called 'form-finding', inspired by the natural world, to another level. Form-finding enables the design of rigid structures that follow a strong natural form - structures that are sustained by a force of pure compression or tension, with no bending stresses, which are the main points of weakness in other structures.