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User: gr8_phk

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  1. Re:Negative Mass on Warp Drive Might Be Less Impossible Than Previously Thought · · Score: 1

    You can do all sorts of crazy things if you start allowing random theoretically-possible particles to exist in your systems.

    Yep, and if anti-matter gravitationally repels itself AND regular matter, then it would form an intergalactic gas pushing the universe apart like "dark energy" and also producing a bunch of gamma radiation emanating from the edge of the galaxy. But again, we need to know how it actually interacts gravitationally rather than make stuff up.

  2. Citation please on Warp Drive Might Be Less Impossible Than Previously Thought · · Score: 0

    But antimatter has been observed to have positive mass.

    And how was this observed? Again, I said we need to wait until its gravitational interactions are measured before speculating. Has that been done and I missed the news?

  3. Re:Negative Mass on Warp Drive Might Be Less Impossible Than Previously Thought · · Score: 0

    The negative mass (energy) required is not expressly forbidden.

    In fact, I propose that anti-matter has negative mass, not opposite charge as generally accepted. This is not my idea of course, IIRC Dirac predicted it but when it was discovered they said opposite charge instead. As I see it there are a few possibilities for gravitational forces when mass is allowed to be negative. But we should wait for experiment to see how gravity works with anti-matter before getting all crazy with speculation.

  4. Re:nice (an nitpick) on Intel Predicts Ubiquitous, Almost-Zero-Energy Computing By 2020 · · Score: 1

    It may not be possible at all to lower the power consuption of certain devices below a certain absolute threshold. No matter how advanced, a WiFi device has got to consume at least the power needed to reach other devices. A backlit screen will use at the very least the power it emits in light, etc...

    But you don't need WiFi all the time and there are non-backlit displays - which are improving but not ready for video yet. Other things like touch-screens will probably find a way to reduce power consumption when they become a larger percentage of battery drain - I have no idea where those stand today.

  5. Red herring on How Viable Is Large Scale Wind Energy? · · Score: 1

    The overriding problem with wind power is that, for large parts of the world, it is not constant or predictable.

    True, but for SOME parts of the world the wind is both strong and predictable, or when it fluctuates it's on a timescale of hours which is adequate to increase or decrease output from conventional power plants to balance. Let's get these areas harnessed first and see where we're at instead of acting like it's fundamentally flawed because it doesn't work so nice "for large parts of the world". Oh wait, that's already happening...

  6. Re:Security by obcurity? on Dutch Court Rules Hyperlinks Can Constitute Infringement · · Score: 1

    In this case, a private copy was made. Nobody knew where to find the copy, except for the person who placed the copy online. So, while the copy was on the internet, it wasn't public. Geenstijl made the copy public by making the URL known to the general public. Therefore Geenstijl infringed on dutch copyright law.

    No, someone placed the copy online and then gave the URL to someone else - that would constitute infringement by your own definition. That the someone else made the URL available to the public would be further infringement. Never mind that if the person who put them up there didn't own them already, there was yet more infringement. And if the company actually put them up there then they are rather stupid IMHO.

  7. Market your software on Ask Slashdot: How Much Is a Fun Job Worth? · · Score: 5, Insightful

    We were a necessary drain on the company, at least that's how upper management viewed it.

    I just got a new boss (promoted from within our group) and I to him mentioned how companies treat engineering and software as a cost center - a necessary evil to be minimized. All my old bosses would agree. Sales people get a commission because they can say - look, if I didn't make THAT sale then THAT money wouldn't come in. Product development is so far removed from the money that it get's viewed quite differently. Now you can argue that if the sales guy didn't have THAT product that we designed and wrote code for, then THAT money wouldn't be here. Somehow that doesn't fly. So back to my new boss.... A few day later he came back and said fuck that "necessary evil" thing - I don't ever want here people say that. We're going to market our controls (my group does controls/algorithms and such) in terms the customers can understand and our business line people can understand. They're going to want our product because it performs better than the other guys because of what we do. We're going to sell what we do inside the company and out.

    And you know, I have to agree with him. If you think IT is like maintenance - to be called when something is broken, then you will be considered a necessary evil. If you get on top of the issues and then start finding out how to proactively make your (internal) customers happy, you'll be viewed as an asset and treated with more respect, not as a drain on the company.

  8. Retirement age on Ask Slashdot: How Much Is a Fun Job Worth? · · Score: 1

    I once read that (statistically of course) for every year below X you retire, your life expectancy goes up by one year. I can't recall for sure but I think X was 65 (may have been 55 I don't know for certain). So for every year earlier you retire, you actually get 2 years of retirement time since life is one year longer. But this did not apply above the age of X. Basically once you reach a certain age, you're better off to keep working since you'll die shortly after you retire. I'd really like to see some better stats from an actuary on this.

  9. And why? on Mesa Finally An OpenGL Implementation (On Intel Hardware) · · Score: 1

    But what about its speed? What on NVidia and AMD cards?

    MESA was supposed to be a software implementation of OpenGL. As such, it has always sucked in terms of performance - even for software rendering. I never understood why it became a sort of wrapper for 3D hardware drivers. My understanding was that Gallium3D, some state trackers and Wayland were going to make Mesa irrelevant. Where did that go wrong?

  10. Re:Health and fashion on Scientists Say Organic Food May Not Be Healthier For You · · Score: 2

    The problem is that there is limited evidence that it actually has the benefits that are typically claimed.

    If you think pesticides have NO net effect on people, then you'd be correct. Showing food with vs without pesticides have the same nutritional content while ignoring the pesticide content, and then saying there is no benefit is rather dishonest.

  11. Re:"while operating a taxicab" on NYC Taxi Commission Nixes Cab-Hailing Apps · · Score: 5, Informative

    This makes no sense. The call center is a cost sink for the taxi company. They should be glad to be rid of it.

    Dude, the call center IS the taxi company. When it's replaced by an app, licensed cab drivers could use their own taxi and keep the full fare. Someone will have to figure out how to handle taxes though.

  12. It's VIDEO on Poll-Based System Predicts U.S. Election Results For President, Senate · · Score: 2

    Who cares what site it's on. It's actual video of Romney talking. That's about as solid as it gets for knowing what someone says. Oh, the AC trolls are here tonight.

  13. I was all for Newt, and things were looking fairly good. Then he called out Romney for being "elitist" which I agreed with. Then all the elites dumped support for Newt and went all-in for Romney. So now the republicans are being funded by a small bunch of elitists who all want handouts (er tax cuts) and the dems are out of control with spending and mandated Obamacare. What's a guy to do?

  14. It's not windows, it's drivers on Ask Slashdot: How Would You Fix the Linux Desktop? · · Score: 1

    So first you install Windows, then you need to find more disks or google around for drivers for some of your hardware. Hardware compatibility is a bit more of an issue for Linux, but less so than Apple products. But if you have hardware that Linux supports (vendors don't support linux, linux supports hardware) then there is usually no issue. Just install from the media of your choice, set up a user and go - everything works out of the box for me.

  15. Re:Doesn't matter in the end on Comments On Code Comments? · · Score: 1

    Nice sarcasm but as an example, do you think people learn OpenGL by reading the Red Book, Blue Book, Orange Book, and writing code or do the learn it by reading the header files? External documentation has its place and can be important.

  16. Re:Doesn't matter in the end on Comments On Code Comments? · · Score: 1

    Going even further - good code generally doesn't need a whole lot of commenting.

    I keep hearing that, but it's just not true. Suppose you have a function to compute sin(x) and it doesn't say that it uses a particular taylor series to compute the answer - it's just a big fat equation. If anyone ever questions it, you're going to be googling around for various ways to compute sin(x) and figure out which one this is. Perhaps it's an approximation that made sense at one time, but someone finds it's not good enough for what they are doing. The name of the function is a good indicator what it does, but without comments you may not have any idea HOW it does it or what its limitations may be.

    Now that I've written that, I notice what I quoted says "doesn't need a whole lot" and I agree after all. It's people who say "doesn't need any" that I disagree with. One comment to indicate the method and/or accuracy of computation would suffice for my sin(x) example in my opinion.

  17. Re:Copyrightable? on Open Source Beer Served Cold, With a Heated Licensing Discussion · · Score: 1

    Since they are "pushing for copyright on recipes" that suggest there is none today. Hence any "open source" license for a recipe is misleading and setting a bad precedent. It's also flawed in the sense that it would have to effectively say "by reading this recipe you agree to these terms" - worse than any EULA. Once you see a recipe, the cat's out of the bag. This could only work if you make reading and agreeing to a license a precondition of being able to get the recipe.

    I'm all for open source, but could people at least THINK before they go slapping licenses where none belong?

  18. It can work the other way too. on Google Patents Profit-Maximizing Dynamic Pricing · · Score: 1

    There are plenty of things that I might have bought just to try but couldn't justify the high price. You could also look at this system as offering a discount to disinterested customers such as myself. Hey, he's not really interested but if we offer a discount he might bite.

  19. And the article failed to explain why. on Why Apple Should Stop Censoring Apps · · Score: 1
    I'd agree with parent:

    Um, no. Apple is taking sides based on the PR it might get. They banned the 'shake the baby' app for exactly the same reason. They're not going to stop doing it, either, because 'image' is a big part of their marketing strategy.

    But TFA says Apple SHOULD change. Why? Because someone with a semi-public voice thinks so? In order to change, they're going to need a reason that benefits Apple, not just some guys opinion who got himself some clicks.

  20. Blame the children? That's different. on Do We Need a Longer School Year? · · Score: 1

    Usually we promote something by saying "it's for the children". But thinking the US economy is falling behind because of our education system is just wrong. While the Chinese are trying to move toward education more like ours, we're trying to be more like theirs and do crazy stuff like "year-round education". Let's not blame our faltering economy on the children or the way they are educated.

    I'm all for discussing ideas, but let us not forget that one of the driving forces of innovation is creativity. Until we start measuring that I don't think the system should be changed too much. At any rate I don't see this growing consensus they mention.

  21. Nice try. on Do We Need a Longer School Year? · · Score: 1

    Yes, DPS is broken possibly beyond repair due to other reasons. That does not make it a counter argument to the statement about creationism. Things can fail for a number of reasons, but when one of those reasons actually happens it doesn't invalidate the others. Your logic needs some work. BTW, I don't intend this as defence of the other poster - they dragged in another idea that's quite off-topic.

  22. Re:Not a longer school year; just better distribut on Do We Need a Longer School Year? · · Score: 1

    Like they said, it's the same number of school days. Teachers might actually appreciate having their time off spread out more too...

    To me, a break needs to be at least 2 weeks long to fully forget about work. I would think 3 weeks at a time, several times a year would be nice. Problem then is that all the Amusement parks, camp grounds, hotels, whatever will be packed in those short summer breaks and not so much in the winter - it will be detrimental to the economy ;-)

  23. Re:Not safe on California To License Self-Driving Cars · · Score: 1

    Your theory isn't holding up in the face of the data. Googles Cars have logged hundreds of thousands of miles and have one accident caused by human error.

    Hundreds of thousands of miles isn't shit. In Detroit it's typical for a new model to have 100 cars built and the fleet log nearly a million miles before production starts. And that's not doing any fancy self-driving. When you build 100,000 of them and keep them in service for 100,000 miles each then we can talk about "data".

    The only reason they need safety standards is because they're going to exempt the manufacturers from liability. For when an accident occurs with 2 of these cars (or a single car accident with one) there will be no question who is to blame.

  24. Re:DNA evidence as dumbed down for a grand jury on The Case Against DNA · · Score: 1

    Again, let's suppose that there are 1 million possible DNA profiles (they are not a complete sequence remember). So 2 random samples would have about a 1 in one trillion (with a T) chance of matching. However, if you take a single sample and compare it to a database of 10 million samples you will almost certainly get a match - probably more than one.

  25. Re:I Guess This Is What Happens When I Don't Watch on The Case Against DNA · · Score: 1

    Okay, congratulations, that has to be the most jaw dropping thing I've read in quite sometime about justice in the UK. Are you serious? DNA should be used as one piece of a very large puzzle used to prove beyond a reasonable doubt that this person was present at some point in time.

    Yep. DNA is supposed to be used to check if an existing suspect was at the scene of the crime. In that case it's a very good indicator. If however, you take some DNA from the scene and compare it to everyone in a database you'll almost certainly find a match - which doesn't mean much. It's damning if you use it to put someone with reasonable suspicion at the scene. It can be tragic to use it to start the search with no other evidence.