Slashdot Mirror


Coming Soon, 250 DVDs In a Quarter-Sized Device

Several readers have remarked on a new technique developed by scientists at UC Berkeley and University of Massachusetts Amherst that has the promise of achieving storage densities of 10 terabits per square inch. "The method lets microscopic nanoscale elements precisely assemble themselves over large surfaces. ... Xu explained that the molecules in the thin film of block copolymers — two or more chemically dissimilar polymer chains linked together — self-assemble into an extremely precise, equidistant pattern when spread out on a surface... Russell and Xu conceived of the elegantly simple solution of layering the film of block copolymers onto the surface of a commercially available sapphire crystal. When the crystal is cut at an angle... and heated to 1,300 to 1,500 degrees Centigrade... for 24 hours, its surface reorganizes into a highly ordered pattern of sawtooth ridges that can then be used to guide the self-assembly of the block polymers."

8 of 209 comments (clear)

  1. DVDs by Anonymous Coward · · Score: 5, Funny

    Who cares how many DVDs? How many Libraries of Congress is it, that's what I want to know.

    1. Re:DVDs by CRCulver · · Score: 5, Interesting

      We're living in the future. The thought of a library fit onto a quarter-sized device makes me think of that scene from Gene Wolfe's science fiction masterwork The Book of the New Sun where the curator of the Earth's largest and most ancient library says:

      There is a cube of crystal here --- though I can no longer tell you where --- no larger than the ball of your thumb that contains more books than the library itself does. Though a harlot might dangle it from one ear for an ornament, there are not volumes enough in the world to counterweight the other.

      The development of such small memory is a significant step forward. Just think about how the writings of the human race can be better preserved if it all fits on a small, lightweight and easily duplicated device. It could be spread all over the solar system as protection against all manner of cataclysms. I wonder how long it stays readable though, before it succumbs to some kind of rot.

    2. Re:DVDs by JaredOfEuropa · · Score: 5, Funny

      I wonder how long it stays readable though, before it succumbs to some kind of rot.

      I imagine the future after mankind has passed away, where some alien race stumbles upon one of these libraries with the collective wisdom of humanity preserved on it, and upon trying to make sense of the contents, instead see a message: "We cannot verify you rights to access this material; the DRM server that can validate your license appears to be down. Please try again later".

      --
      If construction was anything like programming, an incorrectly fitted lock would bring down the entire building...
  2. Nice, hopefully coming soon by foxalopex · · Score: 5, Interesting

    This seems like it has some potential. Hopefully it will make it out of the lab considering how many times I've seen the promise of amazing technology only to find that eventually it isn't practical or has some sort of manufacturing limitation. Oh, and while you're at it, when you do create this "new technology" don't riddle it with DRM issues.

  3. real vs. vaporware by rubycodez · · Score: 5, Funny

    my mini-van full of 9-track can hold 3 TB, and is real. don't bother me with this vaporware speculation!

  4. Heated for HOW Long?! by Logical+Zebra · · Score: 5, Insightful

    ...and heated to 1,300 to 1,500 degrees Centigrade... for 24 hours...

    I certainly hope they can improve those figures. From a manufacturing standpoint, that sounds very expensive.

    --
    I have a bad feeling about this...
  5. Re:Poor math by Albanach · · Score: 5, Informative

    but they're off by an order of magnitude.

    8.4GB * 250 = 2.1TB, not 10TB.

    Perhaps they were looking at single layer DVD

    4.7GB * 250 = 1.175TB

    1.175 * 8 = 9.400 Terabits

    Since, the summary points out it's 10 terabits per square inch, not terabytes as you seem to be using.

  6. A horse in my wallet. by SharpFang · · Score: 5, Insightful

    Well, say what you want, right here with me, in my wallet, I have a horse. Smaller than a quarter.
    Precisely, the complete genome sequenced and sorted. On a 2GB MicroSD card.

    "A lot of books" is an odd abstract that doesn't really impress me. But the idea of a full, unabridged, complete set of information which describes a real lifeform in full, contains the program of all the life functions, all the complexity of neural system, all the mysteries of instincts and social behaviors, the complexity of senses, the strength, immunity, lifeforce of a powerful creature - all this potential, described as a bunch of files consisting of rows upon rows of letters AGCT (gzipped).

    Sure we have no technology to reproduce a living creature from this data alone. But that looks like a really small problem compared to all the incredible knowledge achieved through billions of years of evolution, to solve all these problems of creating a standalone, self-repairing, self-replicating, self-defending, and quite pretty to that, piece of "biotechnology" - actually, the solution to re-creating it from that data (only on different media) is right in that data. We just can't really use it.

    250 high quality movies, in some future? blah.
    A horse in my wallet, now and today, that is what impresses me, really.

    --
    45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2