Datahopa

Lone people standing in a ballroom don't tend to move a lot. It's only when they find a suitable dance partner that rapid motion sets in. Atoms on iron-oxide surfaces behave in a similar way: O...

Source: Dance of the atoms: Clustering of atoms observed (http://www.buzzbots.net/news/dance-of-the-atoms-clustering-of-atoms-observed/msg541/#msg541)