A materials scientist's dream come true

Materials can deform plastically by atomic-scale line defects called dislocations. Many technical applications are based on this fundamental process, such as forging, but we also rely on the power of dislocations in our everyday life: in the crumple zone of cars dislocations protect lives by transforming energy into plastic deformation. Researchers have now found a way of manipulating individual dislocations directly on the atomic scale.
A materials scientist's dream come true