stack---including the existing libraries and systems layer
dependencies---is open source, so other labs are free to use, improve,
and republish it as they see fit.
+%
+\nomenclature{tarball}{A single file containing a collection of files
+ and directories. Created by
+ \href{http://www.gnu.org/software/tar/}{Tar}, tarballs were
+ originally used for tape archives (hence the name), but they are now
+ often used for distributing project source code.}
As the body of existing science increases, new researchers must become
at the same time more specialized and more interdisciplinary than