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User: mengel

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  1. Re:Tape is your friend on Long-Term Storage of Moderately Large Datasets? · · Score: 3, Insightful

    There's some code lurking in the amanda backup package I did a while back for "RAIT" (RAID with tape instead of disk) to make a stripe-set of tapes, if you need several tapes worth of data in one set, with redundancy.

    On the other hand, while LT04 tapes are about half the price ($40) of cheap 1TB disk drives ($80), the tape drives are ablout $2k apiece, so depending how many data sets you want to keep, and for how long, the disk drives may really be cheaper...

  2. If it were a botnet... on Crazy Firewall Log Activity — What Does It Mean? · · Score: 1
    Wouldn't you only see this sort of activity if you were hosting a control node of the botnet? Or are you thinking the botnet is scanning him by doing parallel distributed port probes?

    It would be clearer if we knew the destination port distribution of these "stripes".

    If its all to port 80, it could be there's a web page with a refresh that updates every few hours, and people happen to have it up on their screens...

  3. Re:is this a problem on DNS Problem Linked To DDoS Attacks Gets Worse · · Score: 1

    Real dialup modems don't do anything nearly as smart as DNS.

    DSL "Modems" are really full-blown routers, and generally have NAT routing setup, and DNS and DHCP servers. So yes, they can be vulnerable to DNS cache poisoning, and then you'll get some Phisher-pholk's server instead of your bank's.

  4. Trends and purchase justification on Reporting To Executives · · Score: 1

    One of the most important things you need to give managers is an idea of resource usage and trends. i.e. "peak load during Christmas season for the last 3 years indicates this year we're going to need a bigger router, and to split the traffic here across two systems", and how much that will cost, and what will happen if you don't do the upgrade. Big block diagrams of logical systems laid out on physical systems/networks/storage and usage levels on physical links, combined with trends, lets them see why and when systems need to be redistributed.

    Basically you want to give managers a warm, fuzzy feeling that they're getting their money's worth out of the hardware they've bought, and that they won't be losing customers due to down websites, etc.

    You also want to let them know what systems are getting old/off warranty or are otherwise in need of replacement. And if every system you have is going to need replacing in 3 years, maybe some should get done early...

    And these days, something that indicates how close you are to everything up-to-date on patches, etc. is a Good Thing. Antivirus reports from your AV package are good for keeping them mindful that you're always under attack.

  5. Re:shouldn't they be able to design the cable also on LaserMotive Finds Success In Space Elevator Competition · · Score: 2, Informative

    I thought these guys had it pegged?

    Carbon nanotubes, with a tensile strength of up to 100 GPa, are the strongest material ever discovered [10]. To exploit this superior property for practical applications, individual carbon nanotubes have been assembled into macroscopic fibers [11,12]. However, these macrofibers show a very low tensile strength of less than 3.3 GPa [12 15]. This is mainly due to the clustering of nanotube ends, internanotube slippage and intrananotube defects. In contrast, the CCTs have demonstrated much improved mechanical properties compared to carbon nanotube fibers of similar sizes. Figure 4(a) shows the maximum tensile strength of 6:9 GPa of a CCT.
    ....
    The CCTs synthesized here have a unique architecture with rectangular macropores across the tube walls and layered crystal structures in the solid walls. This unique architecture renders them a combination of superior prop- erties, including ultralight weight, extremely high strength, excellent ductility, and high conductivity. These unique architectural and physical properties give them great po- tentials for a variety of advanced applications. For ex- ample, the diameter and the length of CCTs are com- parable to those cotton fibers and the tenacity of the CCTs is 224 times that of cotton fibers. This suggests that conventional textile technologies can be used to make CCT fabrics that are much stronger than any current fabrics for applications such as body armors and light- weight, high strength composite structures. Other potential applications include making in situ self-healing composite structures, medical devices to deliver/release multiple drugs simultaneously, and microelectromechanic al sys- tems, to name only a few.

    Of course, producing enough of the stuff and making the belt out of it is still non-trivial...

  6. Re:No, it's very, very expensive... on New Jersey Outshines Most Others In Solar Energy · · Score: 2, Informative
    Hmm.. $48k at 6% interest is $2800/year or $240/month. That's a pretty good electric bill in a lot of places. Now whether it's sufficient to get rid of their electric bill altogether, I can't say.

    And of course, once you pay off the loan (5 years?) you're ahead of the game.

  7. Re:Wrong Question on Design Starting For Matter-Antimatter Collider · · Score: 1
    Actually, you don't have to keep electromagets powered up to store antimatter, either. The "Recycler Ring" here at Fermilab stores antimatter with a fixed-magnet ring. The magnets just keep those antiprotons turning around the ring. From http://www.fnal.gov/pub/ferminews/ferminews00-12-15/p3.html:

    The eighth-largest particle machine ever built, the Recycler is the only one of its kind. While its cousins accelerate particles to higher and higher energies, the Recycler will store and condense antiproton beams, keeping the beam energy at a steady 8 GeV. This fundamental difference allowed physicists Gerry Jackson and Bill Foster to propose the use of permanent magnets, and the Recycler ranks as the world's largest assembly of permanent magnets.

    And yes, that is the Bill Foster who is now our Congressman...

  8. _100 Great Science Fiction Short-Short Stories_ on What Belongs In a High School Sci-Fi/Fantasy Lit Class? · · Score: 1
    Start with One Hundred Great Science Fiction Short-Short Stories, edited by Issac Asimov, it has stories by nearly all of the greats, but they're each only a few pages.

    Then you need a sampling of the classics: Niven (Ringworld), Simak (Time is the Simpest Thing), Harrison (The Stainless Steel Rat), Brunner (The Shockwave Rider), Stephenson (Snow Crash), Zelazny (Roadmarks) Bradbury (Farenhieght 451, Martian Cronicles)...

    Okay, maybe that's getting to be too much for one class.

  9. Mozilla.com still has 3.5, not 3.5.1... on Firefox 3.5.1 Released · · Score: 1

    So why does the main Mozilla.com page still list 3.5 and not 3.5.1?

  10. Aren't they repeating themselves? on IBM Wants Patent For Regex SSN Validation · · Score: 1

    Isn't this just making a library for web forms that act like an IBM 3270 terminal? I mean, they patented having a terminal that does field validation decades ago. This is just an alternate software implementation of the same thing, in a web browser.

  11. Why is it a bad thing? on FEMA Removes 9/11 Coloring Book For Children From Website · · Score: 3, Insightful

    Because the people who are asking them to take it down are silly, that's why. Things like coloring or drawing pictures (and talking about the pictures thus drawn) of traumatic events is good therapy. Removing something that supports that is silly.

    So yes, the government should be accountable to the people. But they should also know when a few people are being silly and complaining about something that is actually worthwhile.

    On the other hand, kids that are of a coloring-book age (like my 5-year-old) at this point probably don't remember September 11, 2001, anyhow.

  12. Re:Do-over on Bell Proposing Usage-Based Billing · · Score: 2, Interesting

    Given that the top 1% own about 40% of the financial wealth in the country, having them pay 90% of the income tax bill seems pretty reasonable to me.

    When they get down to maybe owning 20% of the country's financial wealth, then maybe it's time to back off a bit on the taxes. But it doesn't seem to be slowing them down much.

    And as a member of the top 20% of income, (who own over half the country's financial wealth) I pay a noticably higher percentage of my income than someone who is poor. And I think that's fair too. I can afford it much better than they can. And the Gates and Forbes and other top 1% of the country can afford it even better than I can.

  13. Just build your screen scrapers in Selenium... on Hulu Munging HTML With JS To Protect Content · · Score: 1

    ...and you'll never have to worry about *how* the content gets on the page. Make the browser do it just like you would by hand, and scrape the content after it's all rendered. Encrypted, generated by javascript, whatever.

  14. Next: Gravitation -- just a theory! on Texas Vote May Challenge Teaching of Evolution · · Score: 2, Insightful

    Next we'll be teaching that gravity is "Just a theory" and that there are other reasons that things might fall to the ground, and that planets might move in their orbits -- if you believe in planetary orbits, that is.

  15. Think "simplified" not "distorted". on Young People Prefer "Sizzle Sounds" of MP3 Format · · Score: 2, Interesting

    I can hear the difference in several songs between compressed digitized formats and the CD I have of them at home. Some I like better, others not so much. (Although in my case, it's ogg, not mp3).

    For example, The Cars' "Just What I Needed" sounds "cleaner", and I hear musical details in the right-hand guitar track I'd missed before, probably because the fuzz in the electric guitar tracks is simplified, and the stereo separation of the two guitar tracks is exaggerated. So it's probably a less accurate rendering of their original recording, but I like it better.

  16. They actually write that up... on Race For the "God Particle" Heats Up · · Score: 1

    If you look at the publications from 1995 about the Top Quark, for example, you'll find that they do their best to present the odds that it doesn't exist and they only thought they found it (i.e. that it was "background"), and other such permutations, in a detailed error analysis. In particular they point out in the abstract that "we observe a signal ... inconsistent with the background prediction by 4.8(sigma)"

  17. Answer: PHB on Does Your Vendor Issue Gag Orders? · · Score: 3, Insightful

    Because a Pointy Haired Boss says "I don't care what the end user license agreement says! Install the software!." After five or ten rounds of that, the admin doesn't even ask his/her manager anymore. They just click "I Agree" in the box without asking.

    Now if it's an actual paper contract that goes through a legal department, the story might be different; but it rarely is.

  18. Re:No torch? on Earth Under Threat From Dark Comets · · Score: 1, Insightful

    In places that speak the Queen's English, rather than American, a device with batteries and a light bulb is called a "torch", rather than a "flashlight".

  19. Well, on MY system... on Less Is Moore · · Score: 1

    $ ls -l /bin/more
    lrwxrwxrwx 1 root root 13 Jan 28 15:17 /bin/more -> /usr/bin/less

    So on my box, less is more...

  20. Chicago Machine vs Obama... on Obama Staffers Followed Palin's Email Lead On Inauguration Day · · Score: 2, Interesting

    Actually, if you look at the Obama crowd, they (Jarret, Axelrod, etc.) are from the UofC/Hyde Park/Harold Washington Party crowd -- the folks that beat the Machine in Chicago, at least for a while.

    You could argue that since then, a new and bigger Machine has evolved, I suppose, but I don't think that would be accurate.

  21. Re:Alien Technology? on Obama Edicts Boost FOIA and .gov Websites · · Score: 1

    Not to mention the crew making the funny shaped balloons with remote control fan propulsion, so it looks like all sorts of interesting experimental aircraft (spacecraft?) are being developed...

  22. Re:Yep. We're vulnerable. on Study Finds Hundreds of Stolen Data Dumps · · Score: 1

    I've often used the address:
    Michael T. Maus
    1675 N Buena Vista Dr.
    Lake Buena Vista, FL 32830

  23. Re:Bright vs. Hard Workers on Best Introduction To Programming For Bright 11-14-Year-Olds? · · Score: 1

    Been there, done that.

    But the question is, would it have been any different if you hadn't skipped the grade? In retrospect, I don't think so. Kids would still pick on you for "blowing the curve", etc. Most of them probably never knew you were younger than they were, and picked on you anyway.

    Now being younger than everyone else in Jr. High school was just plain hideous; but Jr. High school is also hideous anyway.

    And for me, at least, starting early got me off to college a year earlier, where the good folks at Undue Purversity put me in a classroom with 20 other kids who also tested out of 2 semesters of calculus, and I actually had to work and study to keep up.

  24. Actaully... on Best Open Source Alternatives To Enterprise Apps · · Score: 2, Funny

    A LAPP stack sounds kind of cool... Folks could call themselves LAPP-landers.

    Of course, like LAMP as an acronym, it still suffers from the potential disagreement about what the last P stands for (Perl, PHP, Python, ...) (note preceding list is in alphabetical order and implies no stated preference :-))

  25. Having read other discussions on Future of Space Elevator Looks Shaky · · Score: 1
    ... of space elevators, one potential use is that there should be a point on the elevator where if you let go at the Right Time, you are on course to, say, head to Mars.

    A small wobble in the belt makes the Right Time hard to guess.