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  1. Hallway Drag Racers on What To Do With a Hundred Hard Drives? · · Score: 1

    Give everyone some tools and some batteries, and see who can make the best drag racer out of the parts.

  2. Re:South Park defense on China Says It Lacks Skills To Hack US Systems · · Score: 1

    Except that in the case of both Korea and the first Iraq war (and Vietnam, while we're at it), the US also did not officially declare war, so there technically wasn't anything to undeclare. The US hasn't declared a proper war since WWII, just a series of "military actions" of varying scale.

  3. Re:South Park defense on China Says It Lacks Skills To Hack US Systems · · Score: 1

    Which civilisation introduced the concepts of human rights, liberal democracy, jury trial, separation of judiciary and legislature, freedom of speech, checks and balances, and a lion's share of the scientific advances which have propelled forward?

    Greece.

  4. Re:Yeah, right on China Says It Lacks Skills To Hack US Systems · · Score: 5, Interesting

    Not to mention that a lot of the key mathematics that broke MD5 was done by Chinese cryptographers, among quite a few other mathematical and scientific breakthroughs over the last few years. Saying they don't have the capability is absurd.

  5. Re:RTFA on SwiftFuel Alternative To Alternative Fuels · · Score: 4, Interesting

    Ultimately, prop planes and cars use the same technology, with some differences in details. One of those details is that airplanes don't have the same emissions requirements, allowing them to use leaded gas with a higher octane rating. The consequence is that they can run a higher compression ratio, and thus be more efficient.

    If SwiftFuel can provide an additive that produces octane ratings on par with leaded gas, we can all jump for joy. Combined with direct injection, we could potentially see gas engines with compression ratios and supercharging boost on par with diesels.

  6. Re:You say: "Defense"... on Pentagon Wants Kill Switch For Planes · · Score: 5, Interesting

    Here's an idea for you: broadcast the hijacker transponder code and jam the voice frequencies. After ground stations get no response, a twitch General will order the plane shot down. No sense trying to smuggle a bomb onboard when you can get the Pentagon to do it for you.

  7. Re:You don't seem to understand the point... on 35 Articles of Impeachment Introduced Against Bush · · Score: 1

    I tend to think it's all a gimmick. Many of his speeches as governor of Texas are quite eloquent. As a rule, the political process itself weeds out people who are terrible at public speaking long before they can reasonably consider a presidential run.

    Also, a lot of people from his college days, even those who are now his political rivals, often say he's not an idiot.

    So it's either all a sham, or alternatively he's going the way of Regan with a recent onset of dementia/alzheimers.

    Overall, I think it's more likely that he's evil rather than incompetent. The appearance of ineptitude covers up reasons that voters would never accept.

  8. Re:You don't seem to understand the point... on 35 Articles of Impeachment Introduced Against Bush · · Score: 5, Informative

    Doesn't work that way. International war crime laws apply to the rulers of all nations no matter if they sign up or not. Otherwise, every two-bit dictator could just declare that their country is immune and do whatever they want. Assuming the next President doesn't decide to throw Bush to the wolves by shipping him out, Bush will probably have to stay within US boarders lest he get picked up.

    Not that this will be a big change, since Bush hardly ever left Texas before he was elected.

  9. Re:Regenerative Brakes on Efficiency? Think Racing Cars, Not Hybrids · · Score: 1

    No, hybrids on the road today use NiMH batteries, which are classified non-toxic, but you can (and should) recycle them when they die. They do still have a 12v lead-acid battery, but in the Prius that battery is about half the size of your typical 12v lead acid battery.

    I think I was thinking of the G-Wiz, which does have lead-acid cells.

    While on the highway, a diesel may beat a hybrid, it won't be by much. And once you compare CO2 emissions or price spent on fuel, they usually come out nearly even. But diesels also emit far more pollutants (NOx, CO and particulates) than gasoline cars and still consume significantly more fuel in city driving than hybrids.

    Fiat Panda 1.3L diesel rates 52 mpg urban/76 hiway. The dirtyness of diesels have long been solved with sulfer-free fuel and better filters, though a lot of that hasn't come to the United States yet. Europe does it far more intelligently.

    Super-caps also can help recover and deliver short bursts of power, but are currently limited by capacity.

    Right now, a lot of hybrids loose efficiency in their regenerative braking because the batteries can't take the charge fast enough. A supercap in series with the battery would solve that. But even with that, I still think hybrids are a waste of effort.

  10. Re:Regenerative Brakes on Efficiency? Think Racing Cars, Not Hybrids · · Score: 1

    Has anyone tried using the compressor to run the turbocharger's turbine at low engine RPM? It probably wouldn't be as efficient as a direct drive, but it shouldn't be substantially louder.

  11. Re:Regenerative Brakes on Efficiency? Think Racing Cars, Not Hybrids · · Score: 1

    Also, in any flywheel energy storage, you want the majority of the weight to be on the outer edge (as seen from these equasions: http://flywheel.esmartbiz.com/basics.htm). That means you want the inside of the wheel made of something light but with high tenstile strength (like carbon fiber) and the rim made of something a bit heavier (like steel).

  12. Re:Yes, the alarmists are lying on Of Late, Fewer Sunspots Than Usual · · Score: 1

    You want to know who's lying? Follow the money.

    So both sides, then.

  13. Re:Regenerative Brakes on Efficiency? Think Racing Cars, Not Hybrids · · Score: 1

    IIRC, the Prius and many other electric cars still use lead-acid batteries, which is even worse. In a crash, you often have acid spilling all over the road. Lithium-based batteries are an improvement in every way, at least in comparison to other electric systems. Regenerative braking with supercapacitors are better still.

    In general, I agree that hybrids are a waste of effort, especially the ones with parallel drive and non-plugin recharge systems. In terms of millage, they're often beat by a pure diesel system.

    Safety is an issue with a flywheel. Other flywheel energy storage systems are generally kept in a solid containment vessel in the event of a failure, though this will obviously add a lot of weight to a car. The likelyhood of failure can be mitigated by making all but the outermost edge (where you want most of the weight) out of carbon fiber or carbon nanotubes.

  14. Regenerative Brakes on Efficiency? Think Racing Cars, Not Hybrids · · Score: 4, Interesting

    Hybrids get their benefits in two ways: reclaiming power that would otherwise be lost during braking, and the fact that electric motors have a flat torque band. You generally can't do either that with an internal combustion engine alone.

    However, there are a few ways to do both the above without an electric motor. One way is to have a flywheel connected to a CVT on the drive shaft. When you hit the brakes, the flywheel spins up. You can then release that power again when you accelerate. The flywheel will also act as a gyroscope, so you need to have some way of tilting it so you can go through corners with it spun up (which has the side effect of increasing handling). This method is being put on F1 cars soon.

    The other way is to have an air compressor, which again is run off the drive shaft when you hit the brakes. On acceleration, the compressed air could either run the drive shaft, be dumped into the intake to increase boost, or dumped into the exhaust manifold to eliminate turbo lag. This is probably easier to design than a tilting-flywheel system, though it won't make handling better.

    The compressor could also run off turbines using inlets around the car's body that are opened when braking. This particular use is probably illegal for F1 and other types of race cars (which often ban variable body shape systems), but could easily be used in road cars.

    Both the above don't require any particularly exotic materials (though carbon fiber or nanotubes would be nice for the flywheel), and shouldn't be as heavy as an electric motor/battery system.

  15. Re:So now we have the on Scientists Surprised to Find Earth's Biosphere Booming · · Score: 1

    When there's a White House press secretary who doesn't know what the cuban missile crisis is, I wouldn't make any assumptions about peoples' knowledge of history.

  16. Re:Wii, lightsabre game? on LucasArts Layoffs Spark Many Rumors, Including KOTOR 3 · · Score: 1

    It's actually fairly difficult to precisely model a sword, as was seen in Red Steel. Accelerometers tend to have too much drift to get a precise model of positioning. That's why most swordfighting games just use the "waggle to hit" method, and I think that's going to be the useful limit for swordfighting on the wii.

    The best way to use the wiimotes features is to measure the controller's tilt in relation to the ground. An accelerometer at rest will always give you a reading of 9.81 m/s/s towards the ground. That's why the wiimote can work pretty well as a steering wheel in Mario Kart and other driving games.

  17. Re:fp on Jack Thompson Walks Out On Hearing · · Score: 4, Insightful

    Fox already hires nutjubs, crack cases, and quacks. Why stop at disbarred lawyers?

  18. Re:Summary is flat-out wrong. on New Superconductor Found "Immune To Magnetism" · · Score: 4, Insightful

    If you have a 60T magnet laying around, please get in touch. I have an evil plan that needs hatching.

  19. Re:Don't need government - doing it themselves. on Nominations Open For "Most Likely to be Shut Down By Government" · · Score: 1

    And if congress was a single person, rather than a collective entity, that would mean something. Voters often don't like congress as a whole, but support their local congresscritters. The system was designed to work that way.

  20. If NASA Wanted Ice . . . on Phoenix Mars Lander Deploys Robotic Arm, Possibly Finds Ice · · Score: 4, Funny

    . . . I could have given them some.

  21. Re:I don't really get the Java hate around here on What Makes a Programming Language Successful? · · Score: 1

    Instead they went for a simplified VM and a complex programming structure. Personally I think a lot of this had to do with the fact that in the early days Java was slow and making the JVM any more complicated was probably counter productive. I think this was probably the wrong way to go as no one in their right minds liked all that IOStream and Buffer nonsense even if some of us understood why they did it.

    I guess that's nicer than my explanation (that Java's original class design was laid out by a grad student with too much OO theory jammed into his head and not enough real world experience).

  22. Re:another drum set? on New Guitar Hero Drumset Showcased · · Score: 2, Interesting

    I was thinking about that problem the other day. The Rock Band set is a normal USB HID device, and I wrote a program a while back to play sounds on a normal computer when the pads are hit (link for the interested). Presumably, the GH kit will also be a USB HID device, so if they're not compatible, then it should be possible to easily create an adapter using an AVR USB device that translates codes between the games. For that matter, it should be possible to do the same for guitars.

  23. Re:Drumming... on New Guitar Hero Drumset Showcased · · Score: 1

    I played the drums way back in middle school, but not much since. I also have a friend who is really good at the drums, but he's completely baffled by the Rock Band set. The reason, it seems, is that good drummers don't really follow notes by rote, but listen to the music and come up with a pattern that works with it.

    That said, if you can play the harder levels of drums in the game, you probably have what it takes to be at least an adequate drummer on a real set.

  24. Re:I don't really get the Java hate around here on What Makes a Programming Language Successful? · · Score: 1

    That's not too bad. The explicit File declaration is still unnecessary (other languages have a File object, but they handle it for you unless you really need object functionality), but that's a vast improvement.

  25. Re:I don't really get the Java hate around here on What Makes a Programming Language Successful? · · Score: 2, Interesting

    Does java.io still make you jump through 15 different object declarations just to read a file line-by-line? It's bad huffman coding built into the class design like the above that made me get away from Java.