Slashdot Mirror


User: XNormal

XNormal's activity in the archive.

Stories
0
Comments
948
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 948

  1. Re:My doctor on Meet Web Hypochondriacs · · Score: 1

    No amount of "releasing inner light and thought-energy throughout the body" will cure strained muscles or cerebral palsy.

    Actually, visualization can be extremely helpful for all kinds of musculoskeletal problems. The way you use your body to do everyday things can greatly affect your health and it is very much affected by how you perceive your body.

    Just because it can't be tested in a randomized double-blind, placebo-controlled experiment doesn't automatically mean it's useless.

  2. My doctor on Meet Web Hypochondriacs · · Score: 2, Insightful

    My doctor freely admits that since medical information became accessible to anyone on the web his patients are often better informed about their specific problems than he is. Patients only need to focus on their specifc issues and are often highly motivated. The doctor still has the benefit of wider knowledge and more experience.

    I know that some doctors feel threatened by this but he actually likes it. He believes an open an cooperative approach can be beneficial for both doctors and patients.

  3. The HP way on HP to Layoff 15,000 Employees · · Score: 3, Interesting

    HP is getting rid of anything that might distinguish it from a box-mover like Dell. Just look what it did with the technology assets it got from DEC and Compaq.

    In the short term it should improve profitability. I'm not so sure about the long term, though.

  4. Re:Features I want... on Stroustrup on the Future of C++ · · Score: 1

    For a full description of just how utterly brain damaged C++ member functions really are

    That should have been member function pointers, of course.

  5. Re:Features I want... on Stroustrup on the Future of C++ · · Score: 4, Informative

    1. Member function pointers. Implementation dependent and messy syntax that few people even know about. Their use is limited, and they don't support delegates like C#, making them ugly to work with.

    For a full description of just how utterly brain damaged C++ member functions really are check thisarticle.

    Riddle: What's the size of a method pointer?

    1. 4 bytes
    2. 8 bytes
    3. 12 bytes
    4. 16 bytes
    5. 20 bytes
    6. all of the above

    The correct answer is 6. It can be any of these sizes depending on the circumstances. And just imagine that with all of this mess method pointers STILL don't support something as elementary as delegates (bound method pointers) in a dependable and portable way.

  6. Vein finder on Vein Patterns to Verify Identity · · Score: 1

    Based on the same infrared imaging principle this device can help a nurse find elusive veins for an injection.

  7. Re:Shouldn't be too hard to filter on The Ham and Spam of Weblogs · · Score: 1

    Lucky you. Some blogs are comment-spammed heavily, mostly with links to sites trying to improve their google pagerank.

  8. Shouldn't be too hard to filter on The Ham and Spam of Weblogs · · Score: 4, Interesting

    With email spam filtering you have to consider each email separately. A blog has a persistent identity and reputation. In theory, this should make it easier to filter blog spam than email spam. On results of this type of filtering is that it will will penalize new blogs in search results, both spammy and real.

    Blog comment spam will remain a problem, of course.

  9. Re:Looks like FireFox on Windows Longhorn and Internet Explorer 7 · · Score: 5, Insightful

    They have the menu bar below the tablist.

    It's not just below - it means that the menu bar is part of the tab and can change when you switch tabs. It's actually a pretty clever design. I think they will use it for plugins and web pages that add items to the menus (PDF, Office, etc.)

  10. Alternative for satellite tracking and control on First Controllable Solar Sail Launched Today · · Score: 1

    Don't use ground tracking stations- let the satellite calculate its own position using GPS and then report it through a satellite network.

    It's cheaper, and should provide continuous tracking and control anywhere.

    I think a standard INMARSAT-C terminal could be used for this purpose, as long as the local oscillator is replaced with a unit that uses the GPS signal to calculate the doppler vector to the satellite and apply a correction to the center frequency (Without doppler correction it would miss the 5kHz channel spacing by a few tens of kHZ!)

  11. Re:NASA, get out of the launch business! on Shuttles Can't Finish Space Station · · Score: 1

    Are you mad!!?? I wouldn't dare let private enterprise anywhere near scientifically important space travel

    It's a well-known fact that all equipment and personnel for scientific research in, say, Antrarctica is sent there aboard government-designed ships costing billions of dollars rather than standard or slighly modified commercial shipping vehicles.

  12. Re:NASA, get out of the launch business! on Shuttles Can't Finish Space Station · · Score: 1

    For a manned Moon or Mars mission, you need the equivalent of 100-150 tonnes to LEO

    Who says you have to lob it up in one piece? In fact, orbital assembly isn't really necessary: most of that weight is going to be fuel anyway. Fuel can be divided down into any size you like for multiple launches.

    Fuel is the ideal commdity for orbital delivery by multiple competing commercial providers that have different payload capacities. The only thing that counts is cost per lb to orbit, not what size or shape of package it comes in.

  13. NASA, get out of the launch business! on Shuttles Can't Finish Space Station · · Score: 1, Interesting

    Whatever you might think about the "Bush vision for space" the focus of that vision is from earth orbit outwards. The part of the journey from surface to earth orbit should be bought from commercial providers. This market is already waking up. Just imagine what a big client like NASA will do to launch costs.

    NASA, get out of the launch business!

    But no. They are now planning their own new shuttle-derived launch vehicle.

  14. NOT a law of Physics! on France and Japan Planning New Supersonic Jet · · Score: 4, Interesting

    It's NOT a law of physics that an object moving through a fluid faster than the speed of sound must generate a shock wave. The Navier-Stokes do have solutions at supersonic speed that do not involve a discontinuity in pressure (shock wave).

    A supersonic bullet not generating a sonic boom was designed in the 60s so if a sniper misses the target on the first attempt the target will not get a warning (the noise of a bullet is supersonic boom. Muzzle noise is far away and supposedly masked by a silencer). The bullet has a cylindrical shape with completely straight outer edge and internally it has a carefully designed inlet coupled to a carefully designed expansion nozzle.

    It doesn't generate any aerodynamic lift. Generating lift would require breaking the symmetry and that, of course, would break the careful arrangement that eliminates the shockwave. An airplane must generate lift and there it would seem that this effect cannot be used. However, an airplane also has an engine. If the engine's energy is added to the equasions there can be solutions that generate lift and still have no pressure discontinuities. These mathematical solutions are proven to exist, but haven't been found, yet. If they are found, there is no guarantee that thay can be made into a practical airplane - but there's NO law of physics saying it's impossible!

    Note that the shockwave CAN be reduced by orders of magnitude by careful design down to the point where it's probably not a problem. Here I am talking about totally eliminating it in the mathematical sense.

  15. When I'm hundred twenty-eight on Extending Pop Music Copyrights · · Score: 1

    When I get older losing my hair
    many years from now
    will you still be sending me a royalty check
    ...
    When I'm hundred twenty-eight

  16. -1 misinformative on Breathe Under Water Without Oxygen Tanks · · Score: 1

    Nitrox has a higher percentage of Nitrogen, not oxygen...

    Nitrox is a breathing gas consisting of oxygen and nitrogen (similar to air), but with a higher proportion of oxygen than the normal 20.9%... (Wikipedia Nitrox entry)

  17. Re:4-digit PIN is the heart of the problem on New Way To Crack Secure Bluetooth Devices · · Score: 1

    You can't brute-force 10,000 combinations with a good hope of succeeding if you only get three tries. Even a 25 second wait after 3 incorrect PINs would make the attack last a full day.

    In order to get that kind of security you would need to change the pairing protocol to use EKE, SPEKE or similar protocol that which is resistant to offline attacks even with weak passwords. These algorithms are patented by Lucent and Phoenix Technologies.

  18. That's what hybrids are for on Electric Cars as Fast as Ferraris · · Score: 1

    Stop and go traffic with a turbine car will get you something that makes a Hummer limo look like a Prius.

    That's what hybrids are for. During stop and go traffic you will be running from your batteries. The gas turbine will only start for a few minutes every hour to recharge. At high speeds the turbine will run continously.

    A gas turbine hybrid design will probably choose to always run a generator with the turbine and drive the wheels with electric hub motors like the one described in the article which doesn't require any transmission. Most current hybrids drive the wheels through a transmission from the internal combustion engine when it's running

  19. Nokia is doing more than the GPL requires: on Nokia Announces Patent Support to the Linux Kernel · · Score: 1

    Nokia is it seems releasing a Linux based device. When they do that the GPL is quite clear about the patents and that you *have* to give usage. So in fact the GPL says _more_ than Nokia do.
    The GPL does not require anyone to use his patents to fight someone *else* who is asserting his patents against the code:

    "Nokia also believes that a party should not enjoy use of Nokia's patents and at the same time threaten the development of the Linux Kernel by assertion of its own patents. Therefore, Nokia's commitment shall not apply with regard to any party asserting its patents against any Linux Kernel."

    They're giving a clear message here: "if you threaten the linux kernel, you may have to deal with us".

  20. JSON legal Python? Almost on AJAX Buzzword Reinvigorates Javascript · · Score: 1

    After setting
    null = None
    true = True
    false = False

    There are two remaining incompatibilities:
    1. Comments
    2. \uNNNN escape sequences are legal in python strings only if string is a u"unicode" string. But the u prefix makes it invalid JSON.

    But it doesn't matter anyway - you'd never want to parse JSON in a Python server by passing it to eval() since it's horribly insecure.

  21. Re:Human evolution on Next Step in Human Evolution · · Score: 1

    Also your sweeping characterisation of the stupid as being born that way smacks very much of a particularily nasty type of eugenics,

    No, his sweeping characterisation smacks of elitism. He undoubtedly considers himself to be of the non-stupid breed and therefore morally superior.

    According certain measurements my mental abilities are in the top 10%. But I don't think I'm a better person, morally superior in any way or more deserving of anything because of that. If anything, it means that I have greater responsibility to the welfare of mankind.

    You use the word "eugenics" as though it were something negative. The Nazi regime is is mostly to blame for that negative association. What's really wrong with wanting our offspring to have better genes? As long as nothing is done by force and nobody is confusing persons who statistically have less diseases, greter physical strength, etc with being "superior" there's nothing inherently bad about it. Quite the contrary. But I'm afraid that the word "better" is not quite politically acceptable these days in any meaning other than "improves the corporate bottom line in the short term".

    A modern version eugenics would be almost the opposite of Nazi eugenics - instead of creating a "pure" race it would probably seek to maximize genetic diversity. Wouldn't people of radically mixed ethnicity help break barriers between nations?

  22. Oh my god! Radiation! on Nuclear Battery That Runs 10 Years · · Score: 1

    I still think the smartest move the creators of the microwave made was to not clue the public in that somehow radiation was involved.

    The smartest move the creators of the lightbulb made was not to clue the public in that somehow radiation was involved. A lightbulb's radiation has a much shorter wavelength and is therefore more similar to gamma rays than microwave radiation!

  23. Re:really a superconductor? on Quantum Wires · · Score: 1

    Carbon nanotubes are not superconductors ... they have a resistance that is independent of length ... the resistance of an individual nanotube is about 20 kOhms

    So I guess you could say that the nanotube itself really is a superconductor, but each end has a resistance of around 10kOhm - and it's impossible to build a tube without ends.

  24. Re:From 1995 at MIT on NTT's Cool - Human Area Networking Technology · · Score: 1


    Seems strange if folks don't remember this.


    Slashdotters? Most of them were probably too young to rememeber...

  25. From 1995 at MIT on NTT's Cool - Human Area Networking Technology · · Score: 1

    See Intrabody Signalling from the MIT media lab.