Following atoms with x-ray

At this moment, writing about the researches about x-ray crystalography done at Unicamp, Brazil. Yes, x-ray is useful not only to medical imagery, but also to study structure of matter at atomic level. One interesting subject is ultrafast pulsed x-ray (about 10^-14 seconds each pulse!), with which one may follow the movements of individual atoms in real time and see directly what they do when, as an example, hard steel is forged (“martensitic transitions”). How atoms "orchestrate" themselves to behave collectivelly in such transformations - something that is not yet fully understood. Cool.