  This article explores the emergence of knowledge from scientific discoveries
and their effects on the structure of scientific communication. Network
analysis is applied to understand this emergence institutionally as changes in
the journals; semantically, as changes in the codification of meaning in terms
of words; and cognitively as the new knowledge becomes the emergent foundation
of further developments. The discovery of fullerenes in 1985 is analyzed as the
scientific discovery that triggered a process which led to research in
nanotubes.
