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User: mangu

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  1. Re:Data sharing on Fermi Lab's New Particle Discovery in Question · · Score: 1

    I agree with all you said about raw data and must add there's one more reason why data must be culled: test runs. There are many times when one runs an experiment several times with slightly different parameters and then choose the best configuration and ignore the others.

    I have many sets of data that I may use later as a basis for performing further research, but for the moment they stand alone because I didn't follow them with more measurements under the same configuration. These are perfectly valid results and I keep them for reference in the future but they aren't statistically correlated with other data sets, releasing them would only confuse the issues.

    When I release "raw" data that actually means data that was "cooked" under carefully specified conditions, and these conditions are published along with the data so other people may repeat my measurements and compare their own data with mine if necessary.

  2. Re:Breaking on Australian-Built Hoverbike Prepares For Takeoff · · Score: 1

    How exactly to they expect this thing to stop?

    By hitting a tree.

  3. Air France 447 on Just Months After Jeopardy!, Watson Wows Doctors · · Score: 1

    When systems become too automated there's the risk that humans will not learn some basic procedures. Then, when an unexpected situation happens, no one can do anything to solve it.

    It seems that this is what happened in Air France flight 447 which crashed over the Atlantic ocean killing 228 people in 2009. The Airbus 330 was considered "impossible" to stall. Apparently in flight 447 the air speed sensors became clogged with ice and the plane did stall because of the incorrect speed readings. During the 4 minutes it took to plunge down into the sea, the three pilots were so confused they they were unable to perform the simplest procedure every pilot is taught at school, to point the nose down to gather enough speed to get out of the stall.

  4. Re:It farted on Massive Explosion On the Sun · · Score: 0

    My thoughts exactly. Only problem is it thought it was gas and it turned out to be diarrhea...

  5. Re:I think... on Historic Pairing: Shuttle Docked To the ISS · · Score: 1

    I was preparing a presentation where I mentioned that the Atlas rocket had a "1.5 stage" configuration. I opted to illustrate it with a painting because in a photograph the exhaust is so bright you cannot see clearly the three engines

  6. Re:Analysis is the weak point on Siemens SCADA Flaws To Be Disclosed At Black Hat · · Score: 1

    Yes, there are many ways to do it, but the problem is the software.

    I use one system where I work in which the operating procedures are implemented, no kidding, in excel spreadsheets. Worse still, the console workstations don't have excel installed. The engineers have to develop the procedures in their desktop computers and then copy the .xls files to the workstations. The two different parts of the system don't mix, each needs a parallel port dongle and cannot be installed both on the same computer.

    The only solution to this hell of a system is to have a set of engineering workstations in a separate network.

  7. Re:Analysis is the weak point on Siemens SCADA Flaws To Be Disclosed At Black Hat · · Score: 1

    The simplest way would be an RS-232 line with only the ground and transmit data wires connected. Unfortunately, no one seems to have something like this.

  8. Security through obscurity never works on Siemens SCADA Flaws To Be Disclosed At Black Hat · · Score: 1

    it would be more likely the DHS muscled NSS out of the conference, if there was any of that kind of play involved. If not, then they did what any reasonable researcher, and in fact person, should do; Assess the danger to society caused by withholding the information against the damage done by releasing it.

    This kind of information should always be released. The problem is that people in the DHS think the movie "War Games" is a documentary.

    The real danger is not a random script kiddie connecting to the system to play games. Danger comes from people who have inside knowledge of the system, people who know things like network addresses, which machine does what. There's no way to be obscure here, because the enemy already knows what he needs to enter. Remember stuxnet, everyone seems to agree that it was the work of experts.

    Sharing the information about vulnerabilities is what allows people to take precautions. Of course, the correct procedure would be to first inform the manufacturer and let them contact the system users before publishing the data, but what if the manufacturer is not doing their part? Better let the users know, through whatever means are available.

  9. Analysis is the weak point on Siemens SCADA Flaws To Be Disclosed At Black Hat · · Score: 1

    In any control system there's data that needs to be analyzed. Someone has to transfer telemetry from the control system to an engineer's workstation. Today this is normally done by an USB stick, if there's no direct network connection, and that's the weak point.

    I believe a secure network connection is better than the "sneakernet" approach. It's better to have a good firewall allowing only a limited set of ports than to let people plug things into the computers.

    Another good approach would be to transfer the data through CDs or DVDs, using only new, blank media, but there would always exist the risk that someone would use an old CD containing malware.

  10. In Soviet Russia... on Russian President: Time To Reform Copyright · · Score: 1

    Well, here's a story where things are actually reversed in Russia. So reversed that Russia isn't even Soviet anymore

  11. Re:Robert Cavanaugh (Not Apart of Lulzsec) on Daily Sony Hacking Occurs On Schedule · · Score: 1

    That would mean he is apart of lulzsec - not that that makes him a part of it, or anything like that.

    That's alot like when people join two separate words together. I feel kinda pissed off about it.

  12. Re:Protection racket on Apple WWDC: iOS 5, Lion, iCloud · · Score: 1

    Regardless of your views on piracy and downloading music RICO isn't going to be used to prevent someone from offering a $25/year amnesty for all the music you didn't buy.

    How many times can they pull the same stunt? Napster already bought that amnesty for a total of $36 million, covering past and future violations.

    The media industry reminds me of that scene in "Blazing Saddles" where the black sheriff is about to be lynched. He pulls his gun, points it at his own head, and says: "Hold it! The next man who makes a move the nigger gets it!".

    They are moving fast in a suicidal route, I say let them do it. If they want to charge $15 for a movie that I'm willing to pay $1.50 to watch, that's their problem. I'm not paying that, no matter if I get that film by other means or not. If I can download a film I'll watch it, if I cannot I'll find other things to do. I will never pay ten times the price I consider fair.

  13. Protection racket on Apple WWDC: iOS 5, Lion, iCloud · · Score: 1

    So for a 25 dollar "insurance" fee I can match all the mp3s that I can find op my harddisk to songs in the itunes cloud and then those (legal) itunes songs will be downloaded to all my devices? That's an offer that I can't refuse.

    You are paying those $25 so that they won't come after you? I thought there were laws against that.

  14. Best password practices on A Brief Sony Password Analysis · · Score: 2

    I don't think very long passwords are necessary.

    My own practices:

    No dictionary words, only a string of random letters
    No change, memorize and keep the same password forever

    I use the same password for all internet sites, slashdot, reddit, throwaway emails, etc. Another one for all my computers, at home and at work. A third one is for my bank account only.

  15. Re:Makes sense for long flights on Ars Looks At In-Flight Internet — State of the Art vs. Things To Come · · Score: 2

    Could a state insist that state sales tax be levied on in-flight beverages, for example? Or for that matter, suspend sales of alcohol during the few seconds of flight over a dry county :) ?

    Could I get a hooker while the plane is flying over Nevada?

  16. Sign of distress on Pranksters Post Giant Windows Logo On Hamburg Apple Store · · Score: 2

    In a ship an upside down flag is a sign of distress, normally used when there's a contagious disease aboard.

  17. Re:Ahhhh... so Slashdot is hosted in Syria on Syria Reportedly Back On the Internet · · Score: 1

    I'm surprised by all this Varnish stuff. That's old technology. I'd think that Slashdot could at least spring for some cheap polyurethane coatings.

    The code in Slashdot is so primitive it's still in the linseed oil stage.

  18. What about negative mass? on CERN Ups Antimatter Confinement Record to 15+ Minutes · · Score: 1

    if they'd created and confined matter with a negative energy, THEN I'd be very surprised.

    Imagine negative mass, it's attracted to normal mass but normal mass is repelled by negative mass. A piece of negative mass near a piece of normal mass will be under constant acceleration.

    Somewhat like a geek near a pretty girl.

  19. Re:Unless on France Bans Facebook and Twitter From Radio and TV · · Score: 2

    The root of many problems in the Middle East was the absurdly inept way the dissolution of the Ottoman Empire was handled. The division of the empire ignored the complex religious and ethnic divisions in that region.

    Basically, Iraq is a country that should have never been created. Its territory should have been split between Kurdistan, Syria, and Persia. As it stands now, it can be either a police state or anarchy.

    However, this does not justify keeping Saddam in power. If Bush Sr. had a little bit of competence he should have killed Saddam in 1991 and moved immediately out of Iraq (and Saudi Arabia), let them sort it out among themselves. Having non-Muslim troops quartered in Saudi Arabia was one of the main motivations for the resurgence of religious fanaticism in the region.

    It's a pity the world has no easy way to remove dictators. Unfortunately, it seems that too many people aren't big fans of democracy, or at least do not care to make a big effort to maintain it. I believe that if you have the means you have the duty to do it whenever a dictator starts massacring his own people or attacks another country.

  20. Re:No big secret here on Wikileaks Cables Say No Bloodshed Inside Tiananmen Square · · Score: 1, Informative

    The tanks may not have run over him, would be very bad propaganda because foreign reporters were filming from hotel windows. however no one ever knew what became of that man, not even his identity has been divulged.

  21. Re:We build excitement! on Integrating Capacitors Into Car Frames · · Score: 1

    That must have been an electrolytic capacitor. The larger ones have a safety pressure relief vent, smaller ones have striations on the top so that if it blows up the case will be forced towards the circuit board, instead of flying up. Older ones didn't have this, I have seen several of them blown up, lots of bits of foil and fluff from the paper insulation flying around.

  22. Re:What kind of punishment is a "suspension"? on Student Suspended For Posting On YouTube · · Score: 1

    Permanently suspended from work with pay doesn't sound too bad.

    It happens all the time, it's so common they have a special word for that: "retirement".

  23. Re:Freedom of Speech on Student Suspended For Posting On YouTube · · Score: 1

    Insults can be an expression. Bad language can be an expression. Racism and calls to kill people for being 'heathens' can be an expression.

    Yes, to all of them. It only becomes a crime when the words are interpreted as orders by someone who is under your command in some way. If I say "someone should kill that guy", that's an expression of an opinion, however if I am a leader of a paramilitary group and say that to my platoon it becomes a direct order and I become part of a conspiracy to kill someone.
     

  24. Re:We build excitement! on Integrating Capacitors Into Car Frames · · Score: 2

    It's certainly exiting when a small capacitor goes POP! Imagine when one of these suckers blow your doors off while you're driving!

    Capacitors that go POP are usually electrolytics, where the electrolyte boils when it gets shorted. There are capacitors that are self-repairing, a short vaporizes the conductor around the failure. Presumably, the capacitors they are proposing here, doping the carbon fibers with lithium, would work that way.

  25. Cause vs effect on Man Ordered At Gunpoint To Hand Over Phone For Recording Cops · · Score: 1

    generally, the societies that offer the fewest social services to their citizenry are often the ones with the highest corruption, while social democratic governments in Europe seem to have a lot less of this kind of thing.

    You are mixing cause and effect here.

    The governments in Western Europe have generally low levels of corruption so they can afford to offer high levels of social services. This does not mean that a government that offers high levels of social protection automatically gets low levels of corruption.

    Case in point: I live in Brazil, where a Scandinavian-like social protection system is mandated by the constitution. However the corruption in the government is so high that all these social services barely work. For instance, I have a private health care insurance, although the Brazilian constitution says government-provided health care is a basic right of every citizen.