tag:blogger.com,1999:blog-4503292949532760618.post8564884506781731183..comments2024-03-28T13:39:27.601-07:00Comments on DSHR's Blog: Petabyte DVD?David.http://www.blogger.com/profile/14498131502038331594noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-4503292949532760618.post-20016419443696251332013-06-27T08:35:34.623-07:002013-06-27T08:35:34.623-07:00Unlike these two blue-sky technologies, Henry Newm...Unlike these two blue-sky technologies, Henry Newman points me to <a href="http://storageconference.org/2013/Presentations/Wood.pdf" rel="nofollow">two</a> <a href="http://storageconference.org/2013/Presentations/Watanabi.pdf" rel="nofollow">presentations</a> (PDFs) by Hitachi on the practical future for DVD-type technology from the IEEE Mass Storage conference.David.https://www.blogger.com/profile/14498131502038331594noreply@blogger.comtag:blogger.com,1999:blog-4503292949532760618.post-92157432987697912462013-06-25T13:20:56.364-07:002013-06-25T13:20:56.364-07:00The competition is heating up. Sebastian Sharwood ...The competition is heating up. <a href="http://www.extremetech.com/computing/159493-scientists-create-nanoscopic-data-storage-using-graphene-paper-and-electron-ink" rel="nofollow">Sebastian Sharwood</a> at ExtremeTech points to a paper from a Danish/Chinese team who used a <a href="http://dx.doi.org/10.1088/0957-4484/24/27/275301" rel="nofollow">scanning transmission electron microscope (STEM) to write on graphene with a 2nm line width</a>.<br /><br />In theory, 2nm dots would allow for about 20TB on a graphene DVD, if such a thing could ever be manufactured. And if the STEM could ever be shrunk from the <a href="https://en.wikipedia.org/wiki/Scanning_transmission_electron_microscope" rel="nofollow">size of a room</a> to the size of a DVD laser, which can <a href="https://en.wikipedia.org/wiki/Laser_diode" rel="nofollow">pass through the eye of a needle</a>. And if such a tiny STEM could find a stable enough environment inside a drive to be able to aim with better than 2nm precision.<br /><br />So, once again predictions about the usefulness of bleeding edge research into materials science, such as these two papers, for actually storing data in the real world should be treated skeptically.David.https://www.blogger.com/profile/14498131502038331594noreply@blogger.com