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User: imsabbel

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Comments · 2,621

  1. Re:True Story on Rubik's Cube World Championships · · Score: 2, Insightful

    Cheats? Solving via algorithms isnt cheating, its using your brain.
    Solving WITHOUT algorithms (even unconscious) is just the 100k monkeys approach...

  2. Re:Cube Theory = Group Theory on Rubik's Cube World Championships · · Score: 1

    Damn.
    SO3 groups for quantum mechanics were nasty enough, i dont really want to touch a S48, even if its disguised as a toy :D

  3. Re:I agree. on Should Linux Have a Binary Kernel Driver Layer? · · Score: 1

    My xp was net-ready after booting and the only driver i had to download was the one for my raid5 controller.

    The only way i ever got linux to go online was using tunneling from a windows machine or running it under windows in vmware with ports forwarded...

    I wonder why always those _super_bright people who have no problem configuring the strangest linux shit seem to have problems running basic windows tasks... maybe partial retardation or just pushing agenta?

  4. I agree. on Should Linux Have a Binary Kernel Driver Layer? · · Score: 1

    Thats why i bought winxp pro.

    Seemed expensive, but adding up the hours i had to fight to get shit working with linux, it was more convinient.
    (Most people dont work around on a system for fun. If it takes more then 10 hours to get a system to work perfectly, i.e. all drivers are ok, all devices running as they are supposed to, ect), then windows is cheaper, imho)

  5. Re:Where's the torrent? on The Ultimate Star Trek Collection · · Score: 2, Informative

    Spoken like a true moron.
    What do you guess a ogg/Mkv container usually contains (besides h264, recently)?

  6. Re:50 percent of what? on DARPA Awards $53 Million for Solar Power Research · · Score: 1

    You dont know what you are talking about.
    Seriously.

    A cell thats 25% efficient DOES convert 25% of the complete photon energy flux on its area in electrical energy.

    Thats why 25% is such a high value and even optimisation cant rise it much higher. The _quantum_ efficiency of those solar cells is almost 1, btw, So if you wanted bullshit advertisements, you could always claim 94% efficience.
    A hint for better understanding: look at a spectral graph of sunlight through the athmosthere. Its not really a blackbody-curve, because most of the uv is cut away (200nm because of nitrogen absorbtion, nUV because of ozone&co), plus the middle IR dropps quite a bit then the water absorbtion kicks in.
    So now your bandgap of your solar cell is at a specific energy, which means all photons with lower energy will be discarded (efficiency loss). But also, a photon CANNOT give more energy (at least not consitently) than the bandgap, so setting the gap energy too low will reduce the efficiency for all captured photons.
    So its a simple minmax operation where to set the bandgap, and (iirc) the theoretical maxium for a single bandgap solar cell is somewhere in the 38% range (with an blackbody input profile).
    The properties of the atmosphere help a bit in realitly (because of the loss of uv, you can shift it further into the IR), so i would gauge the theoretical maximum on ground level at about 40-45%, half of which is already realized.

    And yes, those 24% cells REALLY DO CONVERT 24% of ALL SOLAR ENERGY into electricity.

  7. Its a BIG hint... on Alternative to Tokamak Fusion Reactor · · Score: 1

    Big bang&co, i.e. early universe cosmology, and fusion stuff like now proposed dont share that many similarities.

    How big are the odds that there guys is better than anybody else in 2 not very much connected fields?

  8. Im sure ist 266MB/s on Intel Lindenhurst Xeon DP Platform Discussion · · Score: 1

    Because timings and MHz are ALWAYS 10^x, never 2^3x.
    And this datarate is obviously 266Mhz*8Bit or something compareable.

  9. Re:Effects of Hydrogen? on Hydrogen Fuel Cells Hit the Road · · Score: 1

    No.
    The textbook definition of explosion is a exothermic chemical reaction that propagates through the precurser material material with a speed greater than the speed of sound in that material.

    Maybe you are looking for deflagration?

  10. Re:Pretty cool. Still a long way to go though. on LED-Based LCD Display Tested · · Score: 1

    Well
    There you got your point. I dont know of and LED displays, but the mere fact that its monochrome means that there arent different processes for different colour sub-pixels, so production should be much more economical.

  11. Re:Pretty cool. Still a long way to go though. on LED-Based LCD Display Tested · · Score: 2, Informative

    You wouldnt be able to produce a display like this in oled-style but with normal leds for 6_0_k$.
    The problem is: you cant make one master and put red/green/blue diods on it for normal led processed, because those different colours need different dotations, and base substrates.You cant produce them together. Thus a "LED" display would only work if you would assemble and wire millions of individualy produced diods... And thats not economic in ANY scale.

    Thats why oleds are so nice: with organic substrates emitting the light, its a matter of mixing the correct chemicals and then just put the right ones where the pixels should be (simplified). Thus one can produce the displays "per pannel" and not "pixel by pixel".

  12. Re:Better than it seems on LED-Based LCD Display Tested · · Score: 1

    Well, whats your definition of "most" displays?
    Of course those gamer screens with 12ms or so advertised refresh times only have 6 bit precision, and not very good angle-dependence of the colours, too.

    But whoever has brains doesnt buy a TN-display, but a PVA or similar design-> better viewing ables, 8bit per colour channel, with good display even internal 10bit lookup tables, ect.

    Your comment about the black level is true, but when working, there is usually a lot of ambient light in the room, so the contrast is limited by the whitelevel, and not by the blacklevel (home entertainment&co being a different issue). And i have never seen CRTs reaching those 500-1000 cd/m^2 good lcds archive without _ugly_ hacks like those "video boost modes" that totally lose sharpness.

  13. Better than it seems on LED-Based LCD Display Tested · · Score: 2, Informative

    The big thing of the this is not that its as good as CRTs (every manufacturer has high end LCDs with integrated colour correction that are as good, no matter what ignorant ./ groupthink people always claim without anything to back it up).

    This particular device blows CRT out of the water. Due to the fact that it uses indepentend sources for reds/blues/green, it can shift the colour temperatur without any need for recalibration the lookup tables.
    Because the light source is solid state, it can cover more then the whole adobeNTSC colour space (while CRTs CANT. There is a limit to what you can make phosphor emit by hitting it electrons in terms of spectral cleaness and range)

  14. Come on! on LED-Based LCD Display Tested · · Score: 1

    What, exactly, do you think DOES the backlight job in cellular LCDs?
    Those use LEDS for _AGES_.

  15. many options with blue gene on Blue Gene/L Tops Its Own Supercomputer Record · · Score: 1

    The current record for blue gene wasnt running at a very high efficiency (iirc T_peak 0.7 T_max).
    Plus you dont have to forget that the machince has 64K _dual core_ cpus, with one core dedicated for communication, thus the classification as 64K cpus.
    There could be plenty of room for improvement by utilising this core better.

  16. Hello?! on OpenOffice Bloated? · · Score: 1

    Look at your timings. 30s real time, 3 seconds usertime.
    Your first start was totaly HD-bound, while your 2nd start came from your diskcache.
    That no magic, you know, and not even knowing such basics just seems like a BIG hint that you shouldnt even try to benchmark.

  17. Re:Python is very easy to learn. C++ is not. on Answers From The Civ IV Team · · Score: 2, Insightful

    Ever thought of performance reasons?
    I am sure civ spends at least 90 percent of its cpu time in the ai subroutine, so needlessly useing a slower language would bog down the game. (and of course all sheep that know shit about gpus and hw t&l would cry that the graphics make it slow)

  18. oh my god. on New Xeon CPU Hot and Underpowered · · Score: 3, Funny

    The _last_ intel CPU a few days ago was already found hot and underpowered by gamePc.
    That means this _new_ intel CPU really must be craptastic...

  19. Re:Disappointing... on Sid Meier Responds · · Score: 1, Flamebait

    No, go is MUCH MUCH more complicated than chess. Not simpler.
    Much more degrees of freedom.

  20. Re:what? on Hubble Zooms In On Moon Minerals · · Score: 1, Flamebait

    Oh yes.
    Because its _so_ deranged to know an easy(and quite important) formula from optics 101.
    Sad, sad, especially on a place like this (but geek seems to be reduced to "has at some point looked into a CS course" or "knows how to download porn via bittorent", lately)

  21. Re:need more info, just for curiosity's sake on Broadband from Airships · · Score: 1

    I know several people who live near wind generators/farms. (2 different locations)
    Noone of them has _any_ problems with them.
    I, otoh, live not that far away form a garbage burning power plant. I tell you, the not-in-by-backyard factor is uncompareable.

  22. Re:The idea was on Jack Thompson Calls Cops on Penny-Arcade · · Score: 1

    I guess the parent has seen the story about that thing, but complained about this oh-so-well formed sentence in the blurb.

  23. Re:But the sapphire breaks easily on Transparent Aluminum a Reality · · Score: 1

    well, i guess you are just ripped off, as my saphire glass cracked, too (which was sad, it survived the whole time crawling through the forrests in the army without a scratch), and the replacement did cost about 25$, including the work to set it in.

  24. Re:How about 2560 Opterons? on Big-Iron to Open Up for AMD · · Score: 1

    there is a HUGE different between a cluster and a shared memory system.
    HUGE.

  25. Re:Why not at least *try* for intuitiveness? on Vim 6.4 Released · · Score: 1

    I think whenever deleting xxx lines, or xxx words, counting how much you want to delete and doublechecking that you dont kill anything you want to keep will make those timesavings insignificant, right?