True, but there are projects to create open-source STM and SFM ( http://blog.reprap.org/2010/05/open-source-scanning-tunneling.html http://blog.reprap.org/2010/

True, but there are projects to create open-source STM and SFM ( http://blog.reprap.org/2010/05/open-source-scanning-tunneling.html http://blog.reprap.org/2010/05/open-source-scanning-tunnelin... ), which would enable work on the micro level.