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User: marciot

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  1. Total Cost? on New Font Uses Holes To Cut Ink Use · · Score: 1

    I think its dangerous to simply assume that there is net benefit to the environment of something like this, without considering the total cost of using this font. A font full of holes will be considerably more computationally intensive to render than a solid one, which might keep a computer or a printer out of power saving mode longer, which may ultimately offset the saved ink with wasted electricity. This may or may not be true, but it needs to be considered before making the claim that this is good for the environment. I would argue that setting your printer's darkness setting to 80% would save an equal amount of toner, without the risk of increasing computational cost and energy consumption.

  2. Supercomputer or many not-so-super computers? on Inside Tsubame, Japan's GPU-Based Supercomputer · · Score: 4, Interesting

    What makes a supercomputer *a* supercomputer, as opposed to a network of not-necessarily-super computers which all happen to be in the same building and connected to the same high-speed network? By the way this is described, it certainly seems to be a network of many computers working together, rather than one single almighty computer.

  3. No, not zinc fingers... on Researchers Modify T-Cells, Make Them HIV Resistant · · Score: 1

    ... tin whiskers are the way to go.

  4. Re:Despite this "Terminal Chaos" on Terminal Chaos · · Score: 1

    I also recommend Airframe by Michael Crighton. Yes, it's Crighton's usual stuff -- heavy on technical details, some of which may be flubbed. But he does grasp the complexities of air travel in the U.S. today.

    If you enjoyed Airframe by Michael Crichton, you'll probably also enjoy TRACON by Paul McElroy.
  5. Today's lesson... on Fingerprints Recoverable From Cleaned Metal · · Score: 1

    Remember kids, wipe down your murder weapon with sand paper!

  6. Live photo? on Line Forms At Apple's Always-Open Manhattan Cube · · Score: 1

    From the article "P.S. That's a live photo. One more after the break."

    Can someone please explain to me what a live photo is, and how it differs from a dead photo?

  7. Re:Physics on Micro-Projectors May Bring YouTube On-The-Go · · Score: 1

    Not necessarily. There is a lot of room for improvement when you consider that a typical projector puts out the same amount of light when it is displaying a dark image as it does when it is projecting a field of pure white -- just that in the former case the light is absorbed (by the LCD) and is transformed into waste heat. An LCD based pocket projector would have the same problem, but I imagine that in the future, pocket projectors could dispense of the LCD altogether and use a grid of LEDs (one for each pixel) which would shine only as bright as they need to be, and consume no energy at all when displaying black.

    AFAIK, some pocket projectors, which use lasers rather than LEDs, already are able to achieve this economy (I think they use a scanning, modulated laser to paint the image only where it is light).

    -- Marcio

  8. Re:Special Screens on World's Smallest Projector · · Score: 1

    Been done. Here's an article about a "black" projection screen for daylight use:

          http://online.wsj.com/article_email/SB108742977261939595-IRjg4Nllal3nZyva3qHbqyCm4.html

    And a picture:

          http://gizmodo.com/archives/better-picture-of-sonys-black-backed-projection-screen-016964.php

    More googling revealed these are now sold under the ChromaView brand. Check out the price on that puppy:

          http://www.tvcity.tv/productview.aspx?ID=1274

    -- Marcio

  9. Re:So what? on 11-year-old Proves Locks Not So Secure · · Score: 1

    > Hint - siding -> insulation -> foam -> plastic -> drywall. All cuttable with a decent pocket knife. Find a
    > nice secluded area at the rear of the house and you're in and out, no noise no fuss.

    Reminds me of a childhood memory I have. I grew up in Brazil, some parts which are notorious for an extremely high crime rate. The houses in our neigborhood were made out of concrete or masonry, had barred windows, and the properties were surrounded wrought-iron fences and by eight foot high concrete block walls topped with glass shards. My dad had reinforced the doors of our home using steel bars and several dead-bolts.

    Now here's the funny part. All this paranoia and mistrust among neighors afforded thives with the privacy to do whatever they wanted. I remember a story of a nearby house that was broken into while the owners were on vacation -- the crooks simply used a jackhammer to break through the wall of the house and nobody did anything to stop it!

    Even though we've been in the US for decades now, my dad still is fairy paranoid about security. Lucky I was too young to be traumatized by it.

  10. Re:Well, you could start by... on Combating Harassing Use of Mosquito Noise Device? · · Score: 1

    > Hee hee, you said "alimentation" ... You mean the wires?

    I'll venture a guess that the person who used that word is fluent in some language other than American English. I know in at least one language (Brazilian Portuguese), is common to use the word "alimentation" in regards to speakers or electronics. It is true that word means "nourish", but it is no different than the use of the English word "feed" in such context (such as a "television feed").

    -- Marcio

  11. Preview Release on Debian GNU/Linux 4.0 Set for December · · Score: 5, Funny

    Preview release is here

    (with apologies to the debian developers... I couldn't resist)

  12. Reason for DirectX on servers on VMware Releases Server 1.0 · · Score: 2, Funny

    I find it highly amusing that the "server" versions of windows all ship with a complete copy of directx (including direct3d, and support for various gaming-related networking protocols and joysticks etc)...

    If you watch the movie Hackers, you will find out that real servers are accessed by virtual reality interfaces where you get to fly over a landscape of translucent towers with glowing green lettering on them, while pounding on neon acrylic keyboards.

    For this sort of futuristic server interface, you definitely need DirectX. Microsoft is just being forward thinking by including DirectX in their current server products, in anticipation of their Vista Server product, which will make full use of it.

  13. From the seller's perspective: 1 cent auctions? on How to Win on Ebay: Snipe · · Score: 1

    Maybe these researchers could look at things from a seller's perspective and explore the following question:

        -- Is it best to set the starting bid on an item to what you expect it to sell for, or to start it at a ridiculously
              low price to get a bidding war going?

    Back when I was selling items on eBay, I got the impression that the latter strategy worked best for comodity items that were also for sale by other auctioneers. If I started, say, a graphics card at one cent, people would look at my listing rather than the one from the guy who was starting it at say, $20, which was the minimum I hoped to get. In the end, it seemed that people would pay more for my item, since once they got into the heat of the bidding war, there were more likely to pay more than they intended. This also seemed to help with snipers, since it encouraged so many people to participate in the bidding war that at the end snipers were out-sniping each other.

    Of course, this strategy can backfire if only one person wants your item, then you end up selling it at a loss, but you can very easily look at sales history to avoid that.

    -- Marcio

  14. Portable version on Updating the Computer, Circa 1969 · · Score: 4, Funny

    Bah.... I much rather have a portable computer...

  15. Re:not sure if more universities is the answer... on Chinese Students' Cheating Techniques - Don't Try at Home · · Score: 1

    Or, for that matter, electronics. ...I wouldn't even know how to intentoanly make a tape player/radio into a bomb let alone do it accidentaly.

    Maybe it was some sort of hi-tech device with a Lithium Ion battery (like an IPod) and when they dissembled it they shorted the leads of the battery or damaged the protection circuit?

    -- Marcio

  16. Kill-A-Watt Meter on Game Console Energy Usage Comparison · · Score: 1

    Power is the integral of instantaneous amps times instananeous volts. You can't use a $2.99 Harbor-Freight voltmeter and ammeter to do this.

    I'm not sure what they used for their measurments, but since hooking up a multimeter to AC is inconvenient, and geeks are lazy, I'm willing to bet they used this little Kill-A-Watt gadget from ThinkGeek:

        http://www.thinkgeek.com/gadgets/electronic/7657

    I got one from eBay (rather than ThinkGeek) and it's a very addicting gadget. It even does the power factor calculations that were mentioned in this thread (hey, thanks for telling me what the PF button on the unit does. It's embarrassing that I earned an EE degree and I did not know what the button did until now -- I regret doing the computer engineering track, since I learned so embarrasingly little about analog electronics along the way!)

    -- Marcio

  17. Translation on Microcups Made of Nanopaper · · Score: 1
    They made paper out of nanotubes. This is cool and worthy of my admiration. But then they add this:


    Further, the material can be cast into different three-dimensional shapes, with different functions. The researchers have created tubes, bowls and cups using this process. These three-dimensional hollow objects can be manipulated by hand and trimmed with scissors, the researchers report.


    In other words, just like regular paper, you can fold it and trim it with scissors, making interesting origami. It's a pet peeve of mine that researchers feel they have to talk about ordinary things in such obscure ways.


    Having gotten my master's degree, I've come to the conclusion that much of the work in academia consists of the following steps repeated over and over again by different people:


          1) Spend several months studing an agonizingly complicated research paper, only to realize that 99% of the paper is intentional obfuscation of obvious things, with the remaining 1% being the actual novel idea that improves some technique.

          2) Spend a week or two finding another novel idea that leads to some overall improvement of the technique. This improvement could also be stated in a sentence or two, but isn't.

          3) Spend several months writing filler material stating obvious things in highly complicated language. Combine with the miniscule morsel of scientific knowledge created in step 2, in a ratio of 100 to 1, then publish as a paper or thesis.



    Don't get me wrong. This research is very cool, and I'm sure coming up with carbon-nanotube paper took more than a few weeks of research, but the part about "three-dimensional hollow objects" really bugs me.

  18. Re:My sincere hopes on IBM and Fuji Announce Tape Storage Breakthrough · · Score: 1
    [My sincere hopes] are that it has something to do with "Gettin' Perpendicular"

    IBM failed to mention that while they can store 15 times as much data per cubic centimeter by standing the bits on end, the tape medium itself is 15 times as thick, leading to the use of a large circular support hub to accommodate the extra weight. The new tapes and tape drives are based on an earlier design popularized by IBM in its heyday.

  19. Why this is good for the country on Fleischmann to Work on Commercial Fusion Heater · · Score: 1

    The government should support this, since it will encourage nuclear families in the United States, and that is good for the children.

  20. Re:Video of the robot on Robotic 'Pack Mule' with Impressive Reflexes · · Score: 1

    Nevermind. I posted the because the coral cache was giving a database error, but it seems to be working again. You can use the original coral cache link from the parent and mod my original post redundant :)

  21. Re:Video of the robot on Robotic 'Pack Mule' with Impressive Reflexes · · Score: 2, Informative
    Ohh, the video is cool.

    Does it make sense to post a torrent on a relatively small file (27MBs)? I guess we will find out. I'm seeding the download for now. Good luck.

    http://marciot.freeshell.org/BigDog_Feb-26-2006.wm v.torrent

    I wonder if having tons of slashdotters download a 3KB torrent will slashdot my free web provider.... should I provide a torrent of my torrent? Or a corel cache of my torrent of the torrent?
  22. Re:Whistle Blower on Professor 'Packetslinger' Assigns Questionable Task · · Score: 1
    Indiana University's Kelley Business School had a CIS class for undergraduates that featured a final similar to this where students had to secure computers and take turns attacking each others machines.

    Which is perfectly alright, since the students set up these computers with the express purpose of attacking them. That is not a problem and in fact is the correct way to run a security class.

    I beleive the issue at hand is that said professor required his students to probe machines that were "live" on the internet and were not under his student's control.

    -- Marcio

  23. mount /dev/hda0 /dev/null on College Student Receives Email of the Lost · · Score: 1

    "I mounted my 60GB hard drive on /dev/null and now it's filled with crud..."

  24. Re:Translation on Microsoft Confirms 6 Versions of Vista · · Score: 1

    > The ability to join static networks was taken out.

    Not true.

    The only annoying ommision in XP Home I've found so far (besides domains) is the lack of the ability to configure file ACLs -- the security tab is available only in safe mode. This makes life very frustrating if you're trying to grant file access to Limited accounts. I had to learn to use "cacls" from the command prompt to change the ACLs.

  25. Reverse Reboot on Quantum Computer Works Better Shut Off · · Score: 1

    Grad Student 1: "Oh no, my quantum computer program is not responding"
    Grad Student 2: "Have you tried turning it on and then off again?"