Slashdot Mirror


User: rrohbeck

rrohbeck's activity in the archive.

Stories
0
Comments
3,407
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 3,407

  1. Re:gghz on Researchers Building Computers That Run on Light · · Score: 2, Insightful

    >So whats that a giga-gigahertz?
    Exahertz, EHz.

  2. Re:Heehee on New Hydrogen Storage Technique · · Score: 1

    Just don't try to land that contraption in Lakehurst, New Jersey.

  3. Re:New Technology on A New Lease On Internal Combustion · · Score: 1

    Now I'm wondering...

    Why are economical engines invariably (D)OHC with high rpm (I'm not talking >10,000 motorcycle engines, but 7-8,000 redline)?

    Why are gas guzzlers invariably pushrod designs? Ok, you can build inefficient OHC engines too, but show me an efficient pushrod engine.

    Could it just be that pushrod is an obsolete design, that's why the rest of the world has dumped it?

  4. Re:Back to Locke on Why Exercise Boosts Brainpower · · Score: 1

    >Perhaps it's a job for mobile computing:

    Yes: Mount a gadget on a propeller head cap so it dangles right in from of your face. Better than a carrot! And you aren't limited to a treadmill and can go outside.

  5. Re:3D Martian Flyover Movies! on 3D Martian Flyover Movies · · Score: 1

    Yeah. I always knew we would capture them on film one day.

  6. Re:Turbo lag, premature combustion on A New Lease On Internal Combustion · · Score: 1

    >If they use this to increase turbocharger pressure, I'd expect turbo lag [1] to become a problem again.

    With intelligent engine management, you can keep the turbo rpm up and/or spin it up very quickly.

    Also, you can add a compressor (like VW with TSI.)

  7. Re:New Technology on A New Lease On Internal Combustion · · Score: 1

    >Within the right rpm range, they are perfectly suitable for many installations.

    No.

    High rpm & high compression (static and/or charged) => smaller engine with the same output => higher efficiency (less friction, higher combustion temperature => higher thermodynamic efficiency.)

    Pushrod => Low rpm => big engine & low combustion temperature => inefficient engine.

  8. Mod parent up! on A New Lease On Internal Combustion · · Score: 1

    +5, Funny.

  9. Re:New Technology on A New Lease On Internal Combustion · · Score: 1

    >Do you really think that the Big Three will adopt new engine technology?

    Yes. After they went Chapter 11 and got picked up by Toyota, VW & co.

  10. Re:Why stick with petrol? on A New Lease On Internal Combustion · · Score: 1

    Now if the US got their act together and got clean (low sulfur) diesel on the market like Europe, diesel would actually be an acceptable fuel.

  11. Re:Since when is this news on A New Lease On Internal Combustion · · Score: 1

    Now go tell this to the folks who won't consider anything below 5 liters a high power engine. Marketing hammers "engine size==power" into consumers' brains around the clock.

    Ever wondered why car companies advertise engine size in the US and engine power everywhere else?

  12. TDI on A New Lease On Internal Combustion · · Score: 1

    == "Turbo Direct Injection." Used in volume by VW and others for more than a decade. It is for Diesels, the same thing for gas is called FSI ("Fuel Stratified Injection") or TSI ("Twin/Turbo Charged Stratified Injection".)

    Now tell me again why high gas prices are bad for the economy.

  13. Wonder? on Five Things You Can't Discuss about Linux · · Score: 1

    >Wonder over on Groklaw and you'll see

    Yeah, I often wonder myself what's going on there.

    I'm sorry, but error free writing is something I expect from somebody who wants to be taken seriously.

  14. Re:Anti-photoshop? on Adobe Tackles Photo Forgeries · · Score: 1

    >So now they're making both Photoshop and Anti-Photoshop? Whon't those two take out each other? Like pasta and anti-pasta?

    Yup, they'll annihilate each other in a shower of hard gamma photons.

  15. Re:We'll miss 'em on Diebold to Withdraw from E-Voting? · · Score: 1

    >Horseshit, hole-ridden garbage machines foisted off on taxpayers like me

    Umm, what else is new?

  16. Re:Dawkins talked about this .... on Humans Hardwired to Believe in Supernatural Deity? · · Score: 1

    >This was one of the possibilities that Dawkins talked about in the God Delusion

    Yup, and I didn't make much sense to me.

    The only evolutionary aspect I can see is that our pattern recognition machinery, with its obvious evolutionary advantages, tends to make us see things where there are only random patterns. Cloud formations. Star constellations. Apply this line of feeling (not thinking IMHO) to the larger picture, and you get Intelligent Design and all the other cases of "God did it" where there's only random events. A weird philosopher in Galilee who got in trouble with the Romans, was sentenced to death, and his body disappeared from the grave? No good explanation at first glance => "God dit it."
    Add the theory of memes (aka "viral marketing"), another outgrowth of a genetic adaptation (for social communication like gossip), and you end up with organized mass delusion, aka religion.

  17. Only in American Genes... on Humans Hardwired to Believe in Supernatural Deity? · · Score: 1

    Why am I not surprised that this kind of research was done in the US?
    Can you imagine this in e.g. Europe? Russia? China? Ok, Israel or Iran, maybe.

    => Either there's some strange mutations going on in the US or this is bogus. I know which one makes more sense to me.

  18. Re:This study is useless. on Disk Drive Failures 15 Times What Vendors Say · · Score: 1

    >Thats fair, but if you pull a bad drive, ghost it (assuming its not THAT bad), plop the new drive in, and the system works flawlessly, what are you to assume?

    Been there, done that. If you have NTFS with encrypted files, you won't be able to read them even though your credentials are the same. Somehow the disk serial number goes into the key.

  19. The Dow's technical glitch, dissected on Dow Jones Plunge Fueled by Overwhelmed Computers · · Score: 2, Informative

    http://money.cnn.com/2007/02/28/markets/tech_glitc h/index.htm

    The publisher of the Dow industrials said that a system problem starting at 1:50 p.m. ET on Tuesday, amid unusually heavy trading volume, caused a 70-minute lag during which the value of the market measure lagged the declines in the underlying stocks.

    The subsequent downward spike in the Dow occurred when the problem was corrected as the company switched to its backup system at around 3 p.m.

    Just before the switch, the Dow was showing about a 160-point drop. But then the blue-chip barometer appeared to tumble some 200 points in the blink of an eye as the newly available data was correctly reflected in the average.

  20. Re:Humor? on Vanishing Honeybees Will Affect Future Crops · · Score: 1

    >What if herds of cattle started vanishing mysteriously out of fields,

    The price of beef would go through the roof, hamburgers would be expensive, and Americans would become a lot healthier.

  21. Obligatory... on Vanishing Honeybees Will Affect Future Crops · · Score: 1

    It's Intelligent Pollination.

  22. Re:80% die-off due to beetles on Vanishing Honeybees Will Affect Future Crops · · Score: 1

    >Outside my window the entire canyon is 80% dead trees.
    Better watch out. The next forest fire will take care of them.

  23. Re:Aero != productivity on Vista Worse For User Efficiency Than XP · · Score: 1

    >shear mechanical accuracy

    You're doing something wrong if you're shearing your mouse.

  24. Re:Just in from bash.org on Vista Worse For User Efficiency Than XP · · Score: 1

    >Powershell on both XP and Vista available for use which is just as robust as bash.

    Does it run on Linux too? Probably not. So why train your fingers to use two systems when you can have bash on Windows?

  25. Re:Just in from bash.org on Vista Worse For User Efficiency Than XP · · Score: 1

    I can do everything efficiently in CMD, even though every other command is bash -c or perl -e.

    Of course you could use bash exclusively and resort to the odd cmd /c.