Some researchers, including Nancy Kedersha, a biologist at ImmunoGen (a biotechnology company in Cambridge, Massachusetts) who was one of the discoverers of vaults, think they regularly switch from open (ie, flowers) to closed (ie, barrels).

ECONOMIST: Cell biology: The secret of the vaults | The

Mozilla says its latest version of open-sourced Firefox was downloaded 7.1 million times, while Microsoft reported last week that IE 9 was downloaded 2.35 million times.

FORBES: Morning Tech Wrap: RIM, Kodak, Google