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User: Facegarden

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  1. Re:Encryption on Confidential Data Not Safe On Solid State Disks · · Score: 1

    Actually as someone pointed out above, the wear leveling algorithms in SSD's can cause problems for effective encryption.

    http://www.truecrypt.org/docs/?s=wear-leveling

    So as always, the answer is "Physically completely destroy the drive".
    -Taylor

  2. Re:Treat it like any other secure system on Confidential Data Not Safe On Solid State Disks · · Score: 1

    Trust should never be absolute.Trust is an analog scale, not a digital bit...

    That's always been my problem. My trust was accidentally configured as a floating input.

  3. Re:Don't blame FILMS blame the SYSTEM on How Watchmen Killed 'R'-rated Fantasy Movies · · Score: 1

    Artistically speaking, freedom of expression is limited in the United States (and other countries, don't get me wrong) because of regulatory bodies that exist for the sole purpose of deciding what is appropriate content and what is not.

    Which regulatory bodies are you referring to, specifically? The FCC? They don't regulate movies. The MPAA? They're a private outfit. They don't censor anything; they just attach a letter to most major studio releases so people can decide if they want to watch it or not. (Whether the letters themselves make sense is a separate question.) That movies like Watchmen are having a hard time getting financed these days has nothing to do with regulation--it has to do with Watchmen being an expensive film that did rather poorly at the box office.

    As an aside, freedom of expression in the United States is at a higher point now than ever. There are more ways of expressing oneself, to a wider audience, and with less restriction, than at any other time in human history. Griping about some sort of repressive system, in 21st century America, doesn't make much sense.

    Well... its a little more complicated than that, on the ratings system. The rating impacts money - for example no one wants to have an NC-17 movie because it won't even get distribution - and the ratings board has this arbitrary system with no transparency. Its not censorship outright, but it amounts to a very similar thing. If you're genuinely curious, you really should watch This Film is Not Yet Rated. Its really interesting.

  4. Re:Not the same thing on How Watchmen Killed 'R'-rated Fantasy Movies · · Score: 1

    Seconded. Seeing the movie Watchmen as excellent is in no way related to having a comic book reader intellect. It is well acted, explores interesting themes, and is not dumbed down or childishly saccharine.

    Thirded. Never read a comic book in my life. Loved Watchmen. So did my girlfriend, and she's picky.

  5. Re:The future of telescopes. on How To Build a Telescope That Trumps Hubble · · Score: 1

    Well, I reasoned this out myself, so maybe I'm wrong, but basically superconducting cameras are able to register every photon that sees them, sending off ~18000 electrons per photon hit. CCDs, on the other hand, send off 1 electron for every photon hit (I read that a while ago but I think those are the numbers).

    Since CCD sensors are so much less sensitive...

    Actually, they are equally sensitive. They are both capable of telling us that 1 photon impact occurred. You can't get any more sensitive than that.

    Well, while they both technically are capable, I don't think we're currently able to sense the one electron that came off of the CCD, are we? Don't we need many electrons before we can sense them?

  6. Re:The future of telescopes. on How To Build a Telescope That Trumps Hubble · · Score: 1

    That's not how optics work. You need to image what you want to see onto your detector.

    To test this: remove the lens from your DSLR and take a photo. You'll get nothing but blur.

    Yeah I was wondering about that. Some of the other replies cleared that up earlier.

    I still imagine that investing in those sensors would have a great payoff.

  7. Re:The future of telescopes. on How To Build a Telescope That Trumps Hubble · · Score: 1

    Even with the most sensitive detector possible, you still need a lens to focus the image. Otherwise you've just got a very fancy flatbed scanner, and everything further away than a couple of inches will be a useless blur.

    The lens can be virtual, like in synthetic aperture systems, but building something like that for optical wavelengths with literally *no* physical lenses involved (whether those lenses are glass, mirrors, or whatever) on a football-field-sized scale would be challenging at best. Each photosite on each of your supercooled sensors would need to capture phase information as well as amplitude. The system would also have to store timestamps for each pixel with atomic clock-level accuracy in order to use the phase information. I think some day, the human race will build something like that, but it's probably going to be awhile.

    Ah. Yeah, I was wondering about optics.

    Well, it would still allow much smaller mirrors to be used, right? So something like a (relatively cheap) 30" mirror with an S-CAM sensor would be able to outperform a much larger telescope with a CCD?

    Even if there are optics involved, making the sensor 18000 times more sensitive seems like it would be immensely more helpful than just making bigger optics.

  8. The future of telescopes. on How To Build a Telescope That Trumps Hubble · · Score: 1

    The real future of telescopes will have no mirrors.

    I'm not sure why no one has made a big deal out of this, but superconducting cameras have the potential to completely replace mirrors in telescopes, making them more robust and essentially eliminating complex alignment.

    Why do I say this? Well, I reasoned this out myself, so maybe I'm wrong, but basically superconducting cameras are able to register every photon that sees them, sending off ~18000 electrons per photon hit. CCDs, on the other hand, send off 1 electron for every photon hit (I read that a while ago but I think those are the numbers).

    Since CCD sensors are so much less sensitive, we use massive mirrors to magnify the amount of light hitting the sensor.

    Well, it seems to me that if we had high resolution functional S-CAM sensors, we wouldn't need mirrors. We could just point them straight to the sky, and even if 18000 times fewer photons hit them, they'd have roughly the same or better output as a CCD.

    Or, you could just lay out a giant array of S-CAM pixels, say, 10 meters in diameter. Then you'd basically have a ten meter telescope without the mirrors, *and* it would be vastly more sensitive.

    I understand that using superconductors is currently an enormous pain in the ass, and I'm not expecting us to find a room-temp one any time soon, but even with the complexities of keeping the sensor cool, wouldn't that have enough advantages over a traditional system that it might be worth it? Maybe not yet, as the sensors currently have to be 0.3K, which seems to me to make it extremely challenging. But if we could make them with something warmer - say, liquid nitrogen cooled - then they might be viable.

    Is there any flaw in my basic reasoning? I mean, maybe it would be more expensive than I imagine, but I feel like we should be looking into it. Imagine a football-field sized array of S-CAM sensors. I feel like we could pretty much see license plates on alien worlds at that point. And it wouldn't be nearly as fragile as something with a mirror.

    http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=36685

    That is the third generation superconducting camera sensor that the ESA is working on. It only has 120 pixels, but I really believe we should be putting way more money into researching these...
    -Taylor

  9. Re:Mug shot? on Teenager Tries To Hire Hitman Via Facebook · · Score: 1

    Did anyone notice that the pic of Emil Protalinski (the guy whose ZDNet article was linked in the OP) looks like it could be the mug shot of the criminal in question? Not a good pic...

    Yeah, I noticed this. Not a good coincidence for the guy, heh. He really should get a picture that doesn't look like it was taken in a basement.

  10. Re:Where's Gingerbread? on Google To Merge Honeycomb and Gingerbread · · Score: 4, Insightful

    which is why the Android model of open source is fundamentally broken, imho. But then it was never about the customer.

    This is such a stupid fucking argument.

    "Oh my god they released in December and it takes months for manufacturers to port to their devices! Android is broken!"

    You don't realize it, but this is the right way to do it. How would you expect it to work?

    Like iOS?

    Apple says "oh hey new version of iOS is out and you can instantly get it for any iOS phone that's been out the past 2 or 3 years with a simple update"

    Takes months for manufacturers, maybe, if they actually were trying. They could have been experimenting with the beta version of Gingerbread and have it working by the time it was officially released. Hell what about all those Android phones still on 2.1, or worse, 1.6?

    Wow, you really don't get it. Apple tests iOS with every device they release it for, because, uh, there's only like 10 of them, and they created them all.

    And actually, I checked and what you said isn't even fucking true. iOS 4 came out last summer for phones and ipod touches, but not until fall for iPads. And it wasn't compatible with anything made before the iPhone 3GS - so, half of the iPhone models got left behind. So you're full of shit.

    http://www.engadget.com/2010/04/08/iphone-os-4-0-unveiled-shipping-this-summer/

    And yes, the nice thing about apple controlling every piece of hardware is that they can release for many devices at once, but that's not how Android works and I hardly consider that broken. If you want to work with multiple manufacturers using open source code, you have to accept that not everyone will jump on a release immediately. I'd much rather have many manufacturers than one, so like I said, I hardly consider it broken.
    -Taylor

  11. Re:Where's Gingerbread? on Google To Merge Honeycomb and Gingerbread · · Score: 4, Insightful

    which is why the Android model of open source is fundamentally broken, imho. But then it was never about the customer.

    This is such a stupid fucking argument.

    "Oh my god they released in December and it takes months for manufacturers to port to their devices! Android is broken!"

    You don't realize it, but this is the right way to do it. How would you expect it to work? Embedded development takes time, there's no way to avoid that. Even on full PCs there is a delay. Take Windows - they come out with new releases only once in many years, so they can easily delay the release 6 months to allow manufacturers to port their drivers - and thats what they do. Microsoft has a Release Candidate of windows ready many months before they "release", but no one complains about that. If google told us "Yup, the next version is done, so we're releasing to manufacturers and you'll see it in 6 months." people would get just as upset. And it wouldn't make sense to do - some people port faster and can use the new features sooner - so just release all the source and let the OEMs sort it out.

    You could look at Ubuntu - it releases all at once to everything - but then, thats where computers differ from phones. Computers have enough extra space and resources that PC operating systems like Windows and Ubuntu just include drivers for every piece of hardware they can - windows has many hundreds of megabytes of *extra* stuff on the disk just to make sure whatever network card you happen to have will work. Phones don't have all that extra space. Computers are also all built with certain things being constant. Phones have to be highly optimized though, so everything about them varies. The notification lights are hooked up to different pins on the microcontroller, different features on a bluetooth chip are enabled depending on space requirements, etc. All the code for every component has to be ported to exactly how that device is laid out. So far NO ONE has come up with a good solution for building a mobile phone OS that can be universally upgraded without issue. Thats something google is trying to do with Android, but thats one hell of an undertaking. They say Gingerbread includes some features that will help, but dude, this stuff is all new, it takes time.

    So chill out and think about what you say.
    -Taylor

  12. Re:Where's Gingerbread? on Google To Merge Honeycomb and Gingerbread · · Score: 3, Insightful

    But it's only on the Nexus S. They were going to release it for the Nexus One and others, but those plans seem to be on hold. I'm using 2.3 on my N1 via the nightly Cyanogen builds but it's definitely got a bunch of quirks in it still. I'm betting Google is going to just release 2.4 as their next "standard" release that's widely distributed.

    While I also am using CM7 on my N1 and wish Google would release a damn stable version already, I imagine they're pretty busy. I'd *much* rather they spend all of their energy on making Honeycomb kick ass than releasing Gingerbread for more phones. Gingerbread is a nice update, but Honeycomb tablets will be shipping soon (supposedly) and they really want to ship them with the best possible software they can. Not only am I much more interested in a honeycomb tablet than stable Gingerbread on my phone, I also want regular people to choose honeycomb over the ipad.

    Also, the Nexus one (and maybe the older dev phones) and the only ones google has any ability to "release" updates for. For the rest of the phones out there, its up to the manufacturer. Clearly cyanogen/koush et al have been working their asses off and they aren't done, I don't see any reason why the manufacturers would be any farther.
    -Taylor

  13. Re:Here's to hoping Expert's Exchange is among the on Google Goes After Content Farms · · Score: 1

    Just scroll down to the bottom. The answer is always there.

    Jesus, I didn't know that!

    I still wish they would die, I hate what they do. They're not trying to be helpful first and make money second, its the other way around with them. Or being helpful might be 3rd or 4th on their list.

  14. Re:Users are morons. on Motorola Adopting 3 Laws of Robotics For Android? · · Score: 2

    This order sounds right.

    For those of us who know what we're doing, sure this is offensive.

    For those who decide that spending 99cents on Justin Bieber wall papers that also snoop on their private conversations, that's a different story.

    See, no vision, this is the problem in america. If you really want to snoop people's private conversation, you make the wallpaper free!

  15. Re:Bias on Motorola Adopting 3 Laws of Robotics For Android? · · Score: 3, Informative

    I don't get it: everyone bashed Apple when its iPhone lacked certain features (multitasking, cut and paste, enterprise security) but not one peep when Android or Windows Mobile lacks these very same features.

    What? Android *does* have excellent multitasking, as well as decent cut and paste. I'm not sure about enterprise security, but I think people have blasted Android for not having it, if it doesn't.

    What the fuck are you talking about?

  16. Re:My world is topsy-turvy on Harvard Professor Creates Paper Accelerometer · · Score: 2

    A majority of academics are in the pursuit of knowledge and furthering their respective fields. When you are working for a company a majority of the time you are doing something that does not further the field of science and knowledge.

    Agreed. Even if you *were* doing useful research, you likely would not be allowed to share it, ever. You have patents and copyright terms and by the end of them its not like companies just open up their records. They'd stay hidden forever. Patents give some insight but not all.

    -Taylor

  17. Re:absolute value? on The Sum Total of the World's Knowledge: 250 Exabytes · · Score: 3, Interesting

    Perhaps some of the knowledge broadcast has a negative value, so the absolute value of the knowledge broadcast is high, but the net information distributed is much smaller?

    Carl Sagan addressed this in Cosmos. He said there was more data broadcast in TV programs every day than the combined written works of all of history.

    But, as he said, "not all bits have equal value."

    A quote I had laser engraved on the back of my Nexus One. :)
    -Taylor

  18. Re:Is anybody really surprised? on Science Programs Hit Hard By Proposed Budget · · Score: 1

    The US accounts for 46% of all world military spending. China, for comparison, accounts for 6% (assuming the numbers are accurate).

    Check out this graph:
    http://cdn1.globalissues.org/i/military/10/country-distribution-2009.png

    From
    http://www.globalissues.org/article/75/world-military-spending

    Our military spending is INSANE.

    Another chart (I found these all via google. I cannot vouch for their accuracy. But they seem legit) shows the proportion of spending for various things.
    http://www.federalbudget.com/

    All this stuff shows me is that we could cut every other program in *half* excluding the last 4, and we'd barely make a dent.

    People want to cut science and research and all the things that will make our future better, but we keep throwing away all our money on all this other crap!

    People want to cut "pork" in these little programs that amount to 0.1% of our budget, but no one is willing to tackle the big ones. I'm so fucking sick of it.
    -Taylor

  19. Re:it's android... on Motorola's XOOM Tablet To Cost $799; Wi-Fi Requires 3G Activation? · · Score: 2

    You forget about this: http://mobile.slashdot.org/story/11/01/19/2322215/Motorola-Sticks-To-Guns-On-Locking-Down-Android

    Think again - Motorola said that post was basically BS, and they are working to possibly make installing custom roms easier.
    http://www.engadget.com/2011/01/21/motorola-ready-to-make-sweet-love-to-rom-devs-and-rooters/
    -Taylor

  20. Re:Solution? on An Open Letter To PC Makers: Ditch Bloatware, Now! · · Score: 1

    What about all the people that "just need a computer" so they can go on Facebook or whatever?

    I suspect that this is where the tablet market will find its biggest demographic...

    Well, I agree with that. But we're not there yet (soon!). I would still appreciate it if PC makers didn't put crapware on machines in the meantime. For my mom's sake. Though I'll probably get her an iPad once the next one comes out. After I get myself a Xoom.
    -Taylor

  21. Re:Who cares? on An Open Letter To PC Makers: Ditch Bloatware, Now! · · Score: 1

    The first thing I do with a new PC is blow the HDD and rebuild. Yeah, all this bloatware is inconvenient for my parents and relatives (and thus me), but even that is only occasionally bothersome. I fail to see why the majority of the /. users should trouble themselves with this.

    The article isn't talking about doing this for the sake of Slashdot users, its talking about doing it to keep Joe Consumer happy, which is for the sake of the PC industry. Which is indirectly for the sake of the Slashdot user. Also, it means slashdot users don't have to fix our parents computers as soon as they buy them.

    Honestly people hate how slow their computers are, and there will be plenty of people who leave PCs for Macs for just this reason, I bet.

    -Taylor

  22. Re:Solution? on An Open Letter To PC Makers: Ditch Bloatware, Now! · · Score: 1

    Eh. Buy the business versions of computers instead. They're comparable in price to their home equivalents, and lack the trialware.

    I still remember when I got my first computer though. There were some demos preinstalled, but there were also full versions of software as well on CDs - a few games, Encarta, etc. Plus, it came with a thick book with detailed technical descriptions of the computer (keep in mind this was a "home user" system) that was comparable to a textbook. Good stuff.

    That requires informed consumers. What about all the people that "just need a computer" so they can go on Facebook or whatever? Although they aren't savvy enough to know they should get the business PC, they still hate how slow their new computer is, and it upsets them.

    Sure, slashdot users know how to get around the bloatware, but the article is talking about getting rid of it for everyone, for the sake of the PC industry. And its a worthy suggestion I think.

  23. Re:I thought AOL on AOL To Buy Huffington Post · · Score: 1

    went out of business in '94...

    You know how when you pick a flower you've effectively killed it, but it still looks alive and continues to function for a while?

    That's what happened to AOL in '94. Its time will come.
    -Taylor

  24. Re:If they waited another year on AOL To Buy Huffington Post · · Score: 1

    If they waited another year it would have been Huffington Post buying AOL.

    Actually that's what I first thought it was when I very tiredly saw the headlines this morning.

  25. Re:Digital Signature on New Technique For Making JPEG Images Copy-Evident · · Score: 1

    Except that if such information is stored with the photo, it can by definition be altered when the photo is altered.

    Yeah, but I imagine you could use some kind of encryption so that even if you can alter that information, you can't easily make it appear original.

    But I don't know anything about that stuff.