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User: mikael

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  1. Re:Is orbital mechanics fractal? on Odd Planet Confuses Scientists · · Score: 1

    I think he meant orbital ratios.

    In a solar system, the planets around a star (or moons around a planet) need to have orbits that have the same ratio otherwise the accumulated grativational forces would throw one or more objects out of the system.

    This article has a good explanation.

  2. Re:Reputation on Mathematicians Deconstruct US News College Rankings · · Score: 2, Interesting

    From what I've seen in the UK, many company directors seem to have a preference for graduates from the university that they went to, rather than by any other selection method. But with so many qualified people chasing the same well-paying jobs, you can't really blame them. Otherwise they start using techniques like handwriting analysis, psychometric questionnaires and pop quizzes to divine who is the "safe bet".

  3. Re:Material for Sci-fi Artists on Fungus Fire Spores With 180,000 G Acceleration · · Score: 1

    I remember Xenon 2 - it had some amazing shaded/animated fungi and blobby things that exploded when you fired at them.

  4. Re:There is no singularity on No Naked Black Holes · · Score: 1

    Photons don't have mass, otherwise they would never be able to travel at the speed of light- the energies required would be way too much.

    "Pair production" is strange though. Fire a high energy photon (at gamma wave energies) at a heavy nucleus (say plutonium), and the photon splits into an electron and positron.

  5. Censorship at VirginMedia on Senate Votes To Empower Parents As Censors · · Score: 1

    Virgin media have a censorship control page on their online user account management site. It seems to allow parents/guardians to block various websites that included:

    Encyclopedia Britannica, Freeloader.com, LEGO, Tweenies
    Expresso education, sonicselector, music choice
    newsplayer.com, napster, vidzone, metaboli.com, Photobox
    Premium Games from virgin media

    I can understand the music and image downloads sites being blocked, but
    Encyclopedia Brittanica and Expresso education?

  6. Re:WTF? just WTF? on Computer Detection Effective In Spotting Cancer · · Score: 3, Insightful

    Because you have to *PROVE* with clinical certainty (ie. research studies) that the computer system is as good as an expert under all conditions. A mammogram is a two dimensional monochrome picture of a three-dimensional object. As you are attempting to detect a life-threatening defect using a piece of software, false alarms can be as devastating to the patient as missed detections, and thus have the same lawsuit risks.

    Also, this requires the entire hospital to have a digital patient record management system, in order to handle digital X-ray images. Many hospitals and dentists are still using photographic plates and paper records. With the digital system, everything from doctors notes to X-rays, CAT and MRI scans are automatically placed into the patients record when they are generated. The resulting data is then accessible to any consultant or doctor involved with the patient. The new system has the advantage that there is no need to wait for X-ray plates to be developed.

  7. Re:Super slimy. on Microsoft Bids To Take Over Open Document Format · · Score: 1

    There is still the future...

    Merge the two formats/committees together, while giving the reason that it is unnecessary to have two standards.

    If that fails, FUD the second standard giving the reason that the committee never moves fast enough to respond to customer requests.

    Result: Global domination of open document standards.

  8. Re:Whee! on CERN Launches Huge LHC Computing Grid · · Score: 1

    A cloud?

  9. Re:Ridiculous on $700 Billion Bailout Signed Into Law · · Score: 1

    I am not sure I really understand the two paragraphs in the second article (trillion dollar bailout).

    This investment policy misunderstands what is good for cities and for the poor. Cities that are alive are cities in flux, with neighborhoods rising and falling, as tastes and economies change. This ceaseless flux is a process, as Jane Jacobs brilliantly described it in The Economy of Cities, that fuels investment, creates jobs, and sparks innovative adaptation of older buildings to new purposes. Those of modest means benefit both from the new jobs and from being able to rent or purchase homes in once-expensive neighborhoods that take on new roles. The idea that it is necessary to flash-freeze certain neighborhoods and set them aside for the poor threatens to disrupt urban vitality and the renewal that comes from the individual plans and efforts of a city's people.

    So it is OK for a neighborhood to decline, because that creates cheap property that can be regenerated. And a neighborhood will decline because wealthy people move out to somewhere more upmarket.


    But keeping these neighborhoods forever poor is the CRA vision. CRA will help virtually any lower-income family that can come close to affording a mortgage payment to purchase a home, often in a non-poor neighborhood.

    There goes the neighborhood.


    Thanks to CRA-driven bank investment, poor neighborhoods would then fill up with subsidized rental complexes, presumably for those poor families who can't earn enough even to get a subsidized, easy credit mortgage.

    So by allowing one group of people to move into home-ownership and escape from renter's hell, we are actually creating sink-estates elsewhere?


    The effects of all this could be to undermine lower-middle-class neighborhoods by introducing families not prepared for home ownership into them and to leave behind poor neighborhoods in which low-income apartments, filled with the worst-off and least competent, stand alone--hardly a recipe for renewal.

    There goes the neighborhood again. Shame on the CRA for helping people from escaping renter's hell. Thatcherism demonstrated that when people take a financial stake in their own property, they take care of it. Otherwise, they just allow it to fall into disrepair. In the worst case, you ended up with Rachmannism.

  10. Re:My eyebrows are raised on Seeing With Your Skin? · · Score: 1

    I remember reading about this in one of those X-files type books in high school ("Strange Energies - Hidden Powers" and "Mysteries of the Undead").

    One of the claims was that people could tell which colour a sheet of paper was, even with their eyes closed. They said that blue or purple would "feel colder" than a colour such as red or orange. Since skin can feel infra-red radiation (heat), maybe this was possible.

    But they never tested it with a sheet of paper underneath a plastic cover, so the case remains unsolved.

  11. Re:Natural device? on Removing CO2 From the Air Efficiently · · Score: 1

    I was thinking in terms of reaction-diffusion equations and CFD.

  12. Re:Except.. on Training Bacteria To Deliver Drugs? · · Score: 2, Informative

    Bacteria can sense chemical gradients. This is particularly useful being able to determine whether a long-term food supply is nearby and to continue reproducing or to just slow down and stick together with other bacteria. Then you get all sorts of amazing patterns forming.

  13. Re:On an old Pentium III laptop... on How Kernel Hackers Boosted the Speed of Desktop Linux · · Score: 1

    Seriously, it is. It is an old Compaq Presario, which was brand new around 2000. The LCD display has gone, so it is plugged into an external monitor. AOL is the preferred ISP through a dial-up modem. No anti-virus updates since then.

    The disk drive is perpetually ticking away during those 20 minutes. You can see each application icon appearing one by one, followed by the display refreshing. In the time it takes to throw out the trash, make a coffee and feed the cats, it still will be starting up.

  14. Re:Does it matter? on How Kernel Hackers Boosted the Speed of Desktop Linux · · Score: 1

    Seems like there is market for a fast-boot Linux distro which just install DHCP, network services, an X-server and an E-mail daemon/web browser to read E-mail. Perhaps you could call a thin-client Linux.

  15. Re:I wonder where he was. on Fossett's Plane Found · · Score: 1

    That was Amazon's "Mechanical Turk". His relatives took some high resolution satellite imagery of the area, cut it into little 50x50 metre squares and posted them on this website. In total there must have been around something like 100 million images for everyone to click on and say whether they saw something worth investigating. They found plenty of wrecks, just not Steve Fossett.

    Problem was, he never gave a flight plan, so the rescuers didn't know where to look. And his rescue beacon watch was never activated. They never mentioned anything about the flight path being recorded by transponder/airport radar.

  16. On an old Pentium III laptop... on How Kernel Hackers Boosted the Speed of Desktop Linux · · Score: 5, Funny

    My stepfather still has an old Pentium III laptop with Windows 95 running on it. Booting the laptop to read an E-mail takes around 20 minutes. His advice to anyone who wants to use it, "switch on the PC, do something else like have a bath, do the lawn, read the newspaper, or have a coffee, and the PC will be ready to use before you know it".

  17. Re:Natural device? on Removing CO2 From the Air Efficiently · · Score: 1
  18. Re:Natural device? on Removing CO2 From the Air Efficiently · · Score: 4, Interesting

    They are, the only downside is that the oceans are gradually becoming acidic (carbonic acid) from all that CO2 being produced.

  19. Network triangulation... on Researchers Identify Wi-Fi Dead Zones Cheaply · · Score: 1

    Would it not be possible for each wi-fi base station to be able to measure the signal strengths of other base stations? The topology of the network would be given from the different signal strengths Then it would be possible to identify holes through the connectivity data of the mesh.

  20. Re:'insider knowledge' on "Back Door" Cheating Scandal Rocks Online Poker · · Score: 1, Funny

    That might not help. If the game were an online 3D Poker game, it would be possible to modify the transparency of the different textures so that the face down cards could become visible (just disable backface culling and make the texture of the back of the card transparent).

  21. Re:Hedge fund majors? on Wall Street's Collapse Is Computer Science's Gain · · Score: 1

    My cousin did one of those - it was a mix of hotel management, business studies, ecology and accounting. It really didn't have anything to do with golf clubs and golf balls. The focus was on how to run and manage a five star hotel with a golf course, with a special interest on keeping golfers happy. People most suited to doing this course were students who had at least one parent as a business director.

  22. Re:You're new here, aren't you? on Wall Street's Collapse Is Computer Science's Gain · · Score: 1

    A PhD in Mathematical Sciences seems the best investment you could make - I have seen so many job vacancies for PhD graduates with engineering mathematics skills (jet/turbine/engine/wing/chassis design/combustion analysis, climate modelling, oceanography, animation, visualisation, financial sciences, molecular modelling) that it now seems insane not to have such a qualification.

    These days (at least in the UK), first year PhD students can also do a MSc at the same time as they are doing their PhD, then they can attend "international student" training courses in these subjects.

  23. Re:passionless technician on Wall Street's Collapse Is Computer Science's Gain · · Score: 1

    I believe the technical term is "gold-diggers". When I was at high-school around 99.5% of all the final year students wanted to take Accounting as their university course, simple because it had the least contact hours and the highest starting salaries. Consequently, the competition was so fierce that students needed five A-levels or SYS's at AAAAA just to get considered for an interview to the course. For other courses, like Computer Science you only needed grades at BBCCC to get on. Other courses requiring the highest grades were Law, Medicine, Dentistry, and Veterinary Practice.

    The unfortunate part is that the entire job market could change in the three or more years that their course takes. This happened to the Nursing market - it was anticipated that there was going to be a shortage of nurses, so the government ran a campaign to encourage people to consider nursing as a career. So many people applied, that the starting wage fell through the floor and the only people that were still interested came from abroad.

  24. Re:How about on How Close Were US Presidential Elections? · · Score: 1

    Australia has Compulsory voting, while the UK doesn't.

    Most voters really only have one issue - their quality of life (taxes for workers, benefits for single parent families and unemployed). To them, those are the only issues that matter.

  25. Re:I just have to wonder.. on Adobe Flaw Allows Full Movie Downloads For Free · · Score: 1

    I am sure a whole design team plus management would be involved in this. They would have had to get a specification written, have it approved by the legal department (to ensure no patents were being trampled on and that user's privacy wasn't being invaded) and by sales/marketing (to ensure that the software would run on the majority of computer systems) and then by accounting (to account for the salaries of the application developers).