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User: jandrese

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  1. Re:80% through tunnels? on Maglev Train Exceeds 600km/h For World Record · · Score: 2

    My guess is that going pure pneumatic is probably inefficient and more difficult to build. A hybrid system probably make more sense, if for no other reason than you don't have to maintain an airtight seal around the car for an entire 1000km journey. Electric motors are pretty reliable and relatively inexpensive.

  2. Re:80% through tunnels? on Maglev Train Exceeds 600km/h For World Record · · Score: 3, Interesting

    Then every car (and the tunnel itself!) needs to be a pressure vessel and you need oxygen masks if there is a leak. Plus you have to turn every station into an airlock. Depressurizing the tunnel is a lot of extra work.

    It might be easier (although not much more sane) to have two large ventilation systems for the tunnel. One working at high negative pressure (near vacuum), and the other working at a high positive pressure. The vents would be shutters that could be opened and closed rapidly, so you're always pulling air from the front of the train and introducing it behind the train. Basically you would always have a strong tail wind, reducing the heating effects of compressing that much air. The energy required to move the air would be substantial though, and it might not make sense. The high speed shutter system would be relatively complex too, and making it reliable would be a challenge.

  3. Re:Expensive and fragile on Optical Tech Can Boost Wi-Fi Systems' Capacity With LEDs · · Score: 1

    I don't know who exactly, but someone will probably complain about the invisible death rays crossing the street. People tend to notice when you start cutting cars in half when they drive in between your buildings.

  4. Expensive and fragile on Optical Tech Can Boost Wi-Fi Systems' Capacity With LEDs · · Score: 3, Informative

    Optical networking startups are littered through history. Ultimately the tech works, but has caveats like you can't move your machine around without losing connectivity, and you also lose connectivity whenever someone walks in front of the beam. Also, they tend to be expensive, and since the machine ends up having to be basically immobile anyway it usually makes sense to just run cables instead.

    Even for Point to Point links where you can't easily run cables (to a building across the street for example), you end up with a reasonably fast link that still cuts out when there is heavy rain or a bird lands in front of it or something. 100Mbps is really nothing to write home about either. In 2015 you should be pushing more like 1Gbps over an optical link to make it even somewhat attractive compared to plain old WiFi.

  5. Re:CJMTK - ESRI lock-in, mandated by Congress? on OSGeo Foundation Up In Arms Over ESRI LAS Lock-In Plans · · Score: 1

    I see language all the time in Defense related project that require all software to be from "commercial vendors". It's one of the big reasons Red Hat Linux stays in business. There are reasons for it. If something goes wrong and there needs to be someone to hold accountable you can't just call up random screen names from GIThub and hope they appear before Congress.

  6. Those skeletons don't like daylight on Copyright For Sale: What the Sony Docs Say About MPAA Buying Political Influence · · Score: 5, Insightful

    I guess we know why Wikileaks is under the smear campaign now. These sort of leaks are bound to make some people uncomfortable, although I doubt they will do much in the grand scheme of things. The people who care already suspected, and the people who don't care still don't care. Having some hard evidence to throw in the face of the naysayers helps, but is not likely to change much since they were mostly shills. Not many regular people believe that big corporations are not complicit with political corruption. They just don't know what they can do to fix it, other than hoping that other people elect better politicians (not theirs though, because they love their Congressman).

  7. Re:Only in america on LAUSD OKs Girls-Only STEM School, Plans Boys-Only English Language Arts School · · Score: 1

    Because he's increasing the gender gap in his profession maybe?

  8. Re:THIS IS "THEIR" TRICK on How Many Hoaxes Are On Wikipedia? No One Knows · · Score: 1

    Not possible, the timecube has infinite capacity.

  9. Re:Free advertising on Legislation Would Force Radio Stations To Pay Royalties · · Score: 4, Insightful

    In decades past, the labels would bribe radio station PD's to get their music played

    It's much more efficient now. Everybody is owned by the same megacorps so there doesn't have to be any "corruption" to make sure only your artists get airtime.

  10. Re:These days... on Reddit CEO Ellen Pao Bans Salary Negotiations To Equalize Pay For Men, Women · · Score: 1

    Next smokers are going to argue that it isn't fair that they're discriminated against for health insurance.

  11. Re:If you don't control it it's compromised. on Ask Slashdot: How Serious Is Hacking In Mobile Games? · · Score: 1

    Even a simulation of the inputs won't prevent all cheating. What if someone has an x-ray hack in place, and maybe even a bot attached that can play a perfect game? The best solution is to just not give a crap and not have online leaderboards or IAP so the only people affected by the hacking are the hackers themselves.

    PvP is a problem though. There's not a lot you can do to prevent some forms of cheating in PvP, but on the mobile space PvP isn't nearly as important anyway. Usually it boils down to "user A submits an army list to the server, user B submits an army list to the server, the server simulates a battle, and then returns the results to both players". As long as your game isn't structured like a CCG with overpowered "rare" units that are supposed to be balanced by being difficult to get (or requiring real money) then it's not so bad. The cheater can submit an optimal army without having to grind, but otherwise they aren't ruining the game for other people too much.

  12. Re:Lets encrypt on Google Let Root Certificate For Gmail Expire · · Score: 2

    I always find it amazing that these huge companies with enormous public domains don't have a person who's job description includes managing all of their certs and making sure they don't expire. You could even assign the job to two people just to make sure one of them doesn't get sick or something and miss one.

  13. Re:Unnecessary, but profitable. on The Dystopian Lake Filled By the World's Tech Sludge · · Score: 4, Insightful

    Ultimately, lax environmental regulation is a big competitive advantage if you have an inherently dirty process.

  14. Re:Governments way to admit that bitcoins are... on Silk Road Investigators Charged With Stealing Bitcoin · · Score: 1

    They were caught because the investigator was on a $150,000/year salary with a homemaker wife and deposited $750,000 in his bank account one year. Then logs from DPR's laptop confirmed it was him. Basically, he was totally and completely brazen about stealing the bitcoins both from DPR and from the government.

  15. Re:Not terrorism ? on Attempted Breach of NSA HQ Checkpoint; One Shot Dead · · Score: 1

    I took it to mean that the perps were white. If they were brown then it would have been a terrorist case.

  16. Re:OSX on GNOME 3.16 Released · · Score: 1

    If that was installed by default and reasonably discoverable I wouldn't complain nearly as much about this, but your average person has virtually no chance of just discovering this without some deep Googling.

  17. Re: *sigh* on Iowa's Governor Terry Branstad Thinks He Doesn't Use E-mail · · Score: 1

    Worse, they will get branded as some sort of elite and someone you couldn't just go and have a beer with. That's why voters flock to everyday joes like Mitt Romney.

  18. Re: Too late on Commercial Flamethrower Successfully Crowdfunded · · Score: 1

    Delivery wouldn't be until next winter at the absolute earliest anyway, even if these were real.

  19. Re:What a stupid idea on Russian Official Proposes Road That Could Connect London To NYC · · Score: 1

    That only gets you to Anchorage/Fairbanks. Getting to Bering strait is something else entirely.

  20. Wildly inconsistent is putting it mildly on Many Password Strength Meters Are Downright Weak, Researchers Say · · Score: 1

    Those meters are all over the place. As the article mentioned, the majority of them only count the number of characters in each class, so they're pretty terrible at actually telling you how hard your password is to crack. Some of them are set to an absurdly high level too. The default Ubuntu meter for instance requires something like 16 characters before it will even consider your password good. I saw one where it wouldn't take your password unless it was at least 14 characters long, had all classes of characters in it (upper, lower, number, symbol), no more than two of the same class together, and "no patterns". At that point you just kind of have to accept that I'm going to stuff it in a password manager even though your site expressly forbids me recording my password elsewhere.

  21. Re:OSX on GNOME 3.16 Released · · Score: 1

    Or when you're on an older laptop where gesture navigation doesn't work, which is all the time for me.

  22. Re:OSX on GNOME 3.16 Released · · Score: 4, Insightful

    The scrollbars on Gnome are so obnoxious now. You have to mouse over a tiny 2 pixel strip to get them to appear, then super precisely move your mouse to get to the part where you can interact with it, and one pixel off causes it to disappear and make you hunt for the invisible 2 pixel strip again. I'm sure they're great if you're on a tablet and just mashing your thumb in the general vicinity of the scrollbar, but for mouse users they're just outright terrible and enabled by default. If you have a distro like Ubuntu it's fairly hard to enable sane scrollbars again too, you have to know what esoteric package to install to fix the behavior, it's not installed by default.

  23. Re:Long on dream, short on planning & engineer on Russian Official Proposes Road That Could Connect London To NYC · · Score: 1

    First we have to figure out a way to make ship captains not drag their anchors behind their ships constantly. The number of undersea cables cut by these bozos is just depressing.

  24. Re:What a stupid idea on Russian Official Proposes Road That Could Connect London To NYC · · Score: 1

    Are you thinking of building bridges to Iceland and then Greenland? That would be a considerably more impressive undertaking than building a bridge across the Bering straight (which is already impressive).

    Of course the other problem with this road is that it will be snowed in half of the year and it is primarily linking up two sparsely populated areas with little industry or population. They're not talking about laying down cement from London all the way to NY, they're assuming you'll use existing roads for the majority of the trip. This is just about filling in a few gaps (including the incredibly expensive one over the ocean).

    That said, if you talk about maybe just a ferry service over the strait this isn't completely unreasonable. You would need something to link up Alaska with the lower 48, but I doubt Russians would be paying for that.

  25. Re:delay on Mars One Delayed 2 Years, CEO Releases Video In Response To Criticism · · Score: 3, Insightful

    It's a classic advance fee scam. You promise the suckers something awesome if they'll just front a bit of cash to handle processing fees and transportation fees and whatever other fees the scammers can think of. It works because after the people invest money they don't want to lose their investment and are more willing to handle further fees. In some cases they are trapped because they took out a loan with the promise of the future payout as collateral and they can't afford to pay the loan back unless the deal goes through.