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User: Maimun

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Comments · 177

  1. Speaking of dark energy on Higgs Boson Detected? · · Score: 2, Interesting
    Speaking of dark energy, I wonder whether [suppose it exists indeed] dark energy does not break the law of conservation of energy. Once I attended a public talk by someont from Fermi Lab [sorry, cannot recall the name] who said that dark energy is a constant quantity [a very small number in standard units] per volume of space. So, given that the Universe is expanding and is being pushed more and more this way by the dark energy, the quantity of dark energy goes up and up, right? So, if it has indeed the meaning of energy, there is more and more energy in the Universe, contrary to the law of conservation...

    Sadly, after the mention public talk only very few questions were allowed and I missed the opportunity to ask the expert in person.

  2. Re:von Neumann architecture on DARPA Aims to Redo the Internet Protocol · · Score: 1
    But I think memory protection has patched this pretty well.
    Exactly!
  3. Re:von Neumann architecture on DARPA Aims to Redo the Internet Protocol · · Score: 1

    seconded. I don't see what is the problem with von Neumann architecture, and the article is pretty vague about that.

  4. Which is your favourite brand? on Coffee is a "Health Drink" · · Score: 0

    I vote for Lavazza Oro.

  5. Re:Energy Density Revisited on Aircraft Maker Will Produce Electric Cars in 2006 · · Score: 1

    I would not like to change the battery like that. The problem is that, AFAIK, batteries fail gradually, unlike fuel -- a old battery can give you less ride. No parallel with tanks here, an old tank full of fuel is as good as new. My point is, how can you be sure that the battery you get at the "battery-station" is in top condition? If you can't be certain, then you can only guess how far you can go with the new battery.

  6. Energy Density Revisited on Aircraft Maker Will Produce Electric Cars in 2006 · · Score: 3, Insightful
    The energy density in the reference above sounded very impressive until I compared it with the energy density of gasoline.

    So, the difference is (assuming the lower figure for gas) like 12700 for gasoline vs 121 (the current figure for LMP). 100 times -- that is a lot of difference! Increasing the energy density for batteries up to 180 (and that is projected) ain't going to change the picture much.

    Further, "re-charging" the fuel tank can be done in 2 minutes, while the batteries take ... who knows, certainly hours. Further, the fuel tank can be refilled practically infinitely many times, while the batteries are good after only so many re-chargings.

  7. Re:First thing to fix on Announcing the KDE Quality Team Project · · Score: 1

    Right!

  8. Re:First thing to fix on Announcing the KDE Quality Team Project · · Score: 1

    Kroup is, AFAIK, a huge metallurgy/machine building factory of Germany. When I hear "Kroup-something" I imagine hardware, not software.

  9. Re:Fast! on Russian Rovers on the Moon · · Score: 1

    Easy: the Moon is much closer to the Earth. Lunokhod was completely remotely controlled, since it takes ~3 seconds at light speed in both directions. OTOH, the round trip to Mars at light speed is .. how much, 20 min? - so the Rovers are (I think) semi-autonomous.

  10. information across the Iron Curtain on Russian Rovers on the Moon · · Score: 3, Interesting

    Don't feel so bad about not having heard of Lunokhod. On the other side of the curtain there was a joke that the newspapers tested their absolutely smallest fonts when describing the American landing on the Moon.

  11. MAS and ALSA / OSS on First Xouvert Milestone Released · · Score: 1

    Does MAS collide with ALSA (assuming a Linux box), or it works above ALSA?

  12. SCOX is unstable today on SCO Ordered to Produce Evidence · · Score: 2, Informative

    See this. It has to be related to the order to produce evidence?

  13. There is a sort of computer attack based on this on Internationalized Domain Names Coming Soon · · Score: 1
    As far as I understood, they are augmenting the set of symbols only with letters from West European languages that differ visually from the letters in the English alphabet.

    Now, suppose that Cyrillic letters are added to the DNS in the future. Many people say that unicode should be used, and that implies Cyrillic too. It is impossible to distinguish visually Cyrillic "o" from Latin "o", yet their Unicode codepoints are different. In other word, you cannot be sure that the URL containing "o" is the one you want -- it may be one that is visually the same, yet the codes behind it may be different. Thus an attacker can lure people with URLs that look properly, yet they resolve to completely different IP addresses, namely the attackers'.

  14. it is not only the surface tension on Writing in Space with a Cheap Ballpoint Pen · · Score: 1
    Surface tension is the important factor for all pens, not gravity.
    I cannot agree. My ballpoint pen (el cheapo model, one with transparent body) stops when, for instance, I have to write something in the corridor and the only thing to put the paper against is the wall. It takes several sentences in this position in order to make the ink flow uneven (I lack the word, I mean there are interruptions) and eventually it stops. I can restore normal operation then by blowing air into the hole on pen's top.

    Seriously, try it.

  15. Correction on Beyond Binary Computing? · · Score: 1
    XOR is complement modulo m
    Sorry, a busy day. Negation is complement mod m. I can't remember about XOR.

    Also, in the binary case, AND and NOT (say) are a basis, any other function can be expressed in those. I dunno if that holds for m-values logic.

  16. Re:Truth Tables * n? on Beyond Binary Computing? · · Score: 5, Informative

    I have studied little multi-value logic. In m-valued logic: AND is minimum. OR is maximum. XOR is complement modulo m A friend of mine that was doing testing of multi-value circuits (purely theoretical work, of course) said that some phenomena are seen "more clearly" when the base is bigger than 2. HTH.

  17. comparison with scramjets? on Pulse Detonation Engines: The Future of Aviation · · Score: 1
    They don't mention scramjets at all. How do these compare, I wonder. Scramjets only work at huge speeds, so this is a point for the PDE.

    OTOH, from general considerations (which may be wrong, I am not a rocket scientist) the scramjet should be more efficient. In it there is no obstacle to the air flow, the air only gets compressed. With the PDEs, as far as I got from the article, there is a wheel with holes perpendicular to the air flow that blocks (and unblocks) the air flow regularly.

  18. the name "Efficeon" on New Transmeta Chip: "Efficeon" · · Score: 2, Informative

    According to a this article , "Efficeon" was chosen because the former name violated the trademarks of an animation company, Hanna-Barbara. Strange, because these are unrelated products.

  19. SCOX going down, let's hope the trend continues on SCO: Fortune 500 Company Buys License, IBM Retort · · Score: 2, Informative

    I posted this link under Linux Gaining Ground in India but it is worth repeating.

  20. speaking of sco, on Linux Gaining Ground In India · · Score: 1
    did you notice how scox is doing recently?

    nice :)

  21. traceable, fake information on Following the Spam Trail · · Score: 1
    We clicked on the link and were transported to a Web page at LWSMortgage.com, where we filled out the form with traceable, fake information and waited to see what happened to our data.
    I wonder what they mean by traceable, fake information. Do you think it includes credit card number and expiry date?
  22. HAHAHA! on SCO Wants $699 for Linux Systems · · Score: 1

    redundand, I know :)

  23. showing the license to the judge on Slow And Steady Leads To Windows Refund Success · · Score: 1
    When you start the software, there is no way of printing the license without agreeing to it. To print it you must install the software. If you install the software, you agree to the license.

    One thing you can do is get the court to issue a subpoena for the license and require that the company bring a copy of the license to court. Or you can ignore the problem and try your case without a printed copy of the license.

    I wonder if it makes sense here to print the screen somehow, or even take a picture of the screen. Will it be more beneficial to attach these pictures to your documents for the case?
  24. Re:Kazaa on ABIT's Secure IDE Motherboard · · Score: 1
    Until the user shares them with the world. Damn some people are stupid.
    My thought exactly.
  25. question to practical programmers on Python 2.3 Final Released · · Score: 4, Interesting

    At the top of the list of new features they have sets. The first paragraph says that sets are implemented by hashtables. I wonder whether it is really meaningless from the "practical" point of view to implement sets with data structures like red-black trees or Fibonacci heaps. The advantage of the latter over hashtables is a solid bound on the worst case running times.