Ultra-dense billion year memory chip

Ultra-dense billion year memory chip

This video shows an iron nanoparticle shuttle moving through a carbon nanotube in the presence of a low voltage electrical current. The shuttles position inside the tube can function as a high-density nonvolatile memory element.
(Courtesy of /Zettl Research Group, Lawrence Berkeley National Laboratory and University of California at Berkeley.) http://newscenter.lbl.gov/feature-stories/2009/06/03/billion-year-ultra-dense-memory-chip/