Electron microscopy reveals how the sliding deformation of grain boundaries is accomplished atom by atom in a poly-grained metal of platinum. The graphic shows the atomic structure of a grain boundary ...

Faster growth results in a grain structure that is wider and less dense that hardwoods. This makes softwoods easy to work with but less durable. Softwoods tend to mainly be light in colour.

Webb telescope reveals 3D structure of interstellar dust The newly ... and some regions even resemble knots in wood grain. It is a major step forward in the understanding of cosmic dust and ...