http://www.nlm.nih.gov/proceedings.dir/signidr.dir/lindberg.dir/case10.2.html (Einblicke ins Internet, 10/1995)
In this closeup of the sample on the preceding image, atomic-level structures of carbon rings at the surface are seen. A button permits energy to be supplied on demand through the STM tip to modify the surface by breaking bonds, displacing various structures and enabling physical and chemical reactions.