Slashdot Mirror


User: Stephen+Ma

Stephen+Ma's activity in the archive.

Stories
0
Comments
489
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 489

  1. Re:Decent idea. on Massive Solar Tower Planned For Arizona · · Score: 1

    The only moving parts here are the turbines. Not only do we have plenty of experience with running turbines (since every other power source uses them), but they should all be independent from one another, so a failure of one doesn't lead to damage or require a shutdown, it just means you're putting out a little less power.

    The maintenance may not be that simple. If the article is right about temperatures at the base of the tower reaching 194 F, fixing a broken turbine will be literally hellish. I wonder how they plan to do it.

  2. Re:Anyone else hoarding gold? on Linux Flourishes In 200-Year-Old Gold Markets · · Score: 1
    Silver was the `universal commodity' for most of the last 5000 years. Gold is a Johnny-come-lately from the last 400 years at best.

    Ahem, do you know what the Roman aureus (from 1st century BC to roughly 4th century AD) was made from? Answer: 99% gold. So gold as a universal currency -- and the Roman Empire was about as universal as Europe ever got -- is a lot older than 400 years.

  3. Re:Next Gen Arm based netbooks. on Microsoft Boasts 96% Netbook Penetration · · Score: 1
    And most Windows apps would be available after a recompile - yes, this would mean no legacy unsupported stuff with long-gone publishers, but all Microsoft products (mainly Office, of course), most recently released stuff, and tons of games will all be there in very little time.

    People who are too cheap to buy a full laptop will not buy expensive Windows applications. So how much motivation will there be for software publishers to "recompile", market, and support? No much, I would say. So there won't be much real Windows software for the ARM-based netbooks, which means that Linux will dominate this market.

  4. Re:most people who've studied science disagree on Huge Supernova Baffles Scientists · · Score: 1
    Mathematically speaking, "convergence" is not the same as the "monotonic convergence" strawman that you raised. A series can converge even if its partial sums jump wildly about (c.f. alternating series).

    We can judge how effectively science converges by the rapid expansion of our capabilities over time. This is good enough for me, as the ultimate questions are almost certainly unanswerable.

  5. Re:most people who've studied science disagree on Huge Supernova Baffles Scientists · · Score: 1
    In particular, it is certainly not true that science converges asymptotically to the truth.

    Well, it depends on your timescale. It might occasionally be necessary to dump things like phlogiston and string theory, as counter evidence comes to light. In the long run, however, this very weeding out is why science tends to debug itself, to converge to better and better explanations of the universe.

  6. Re:Flash-oriented file systems. on AnandTech Gives the Skinny On Recent SSD Offerings · · Score: 1
    You can trust Linux to do it correctly and reliably. Windows, not so much.

    In fact, Linux already has a few flash file systems.

  7. Re:And then? on New Laser System Targets Mosquitoes · · Score: 1
    I'm no friend to mosquitoes, believe you me - if we could wipe them out without any consequences I'd say do it, just like small pox. But just be very very sure before you press the big red button.

    We could save the mosquito DNA, then wipe them out. Then we could resurrect them if their absence turns out to be a problem.

  8. Re:The best things in life... on Linux Gaining Strength In Downturn · · Score: 1
    First off being tied to a platform isn't exactly a death sentence.

    Zillions of Visual Basic programmers all over the world would disagree with you vehemently. Microsoft's abandonment of VB has left them twisting in the wind (VB.NET is not even close to being compatible).

    Meanwhile, Linux just keeps chugging along. An open source app never dies as long as anybody is still interested in it.

  9. Re:Wear leveling question on Can SSDs Be Used For Software Development? · · Score: 1

    No free space notification? Damn, I was hoping for a different answer. SSDs are not looking as good as I thought they were.

  10. Wear leveling question on Can SSDs Be Used For Software Development? · · Score: 2, Interesting
    As I understand it, flash drives use wear leveling to spread the writing burden over many sectors of the disk. So each time I overwrite the same sector, say logical sector 100, the data goes to a different spot on the drive. That makes sense.

    However, suppose I fill up the drive with data, then free half of it. My question is: how does the drive know that half its sectors are free again for use in wear leveling? As far as the drive knows, all of its sectors still hold data from when the drive was full, and no sectors are available for levelling purposes.

    Is there some protocol for telling the drive that "sectors x, y, z are now free"? Or does the drive itself understand the disk layout of the zillions of different filesystems out there?

  11. Re:Can't answer your question on Windows Server 2008 One Year On — Hit Or Miss? · · Score: 1
    Profanity does not enhance your case.

    I've had it up to here with the many, many bogus reliability claims made by Microsoft and its fanboys over the years. At this point, only suckers still believe.

    Unix and its derivatives such as Linux have literally decades of proven reliability, security, and cost effectiveness. Until Windows has a similarly long track record, only fools will use it.

  12. Re:Can't answer your question on Windows Server 2008 One Year On — Hit Or Miss? · · Score: 1
    Windows "scales" only if you define scaling as "spending three or four times more money than necessary". Wide experience has proven that you need three or four Windws machines to do the same job that a single Linux box, no more expensive than any of the Windows boxes, can do. You also spend much more on administration, as the Windows systems need much more babysitting.

    And as I said in my original posting, Windows cannot be relied upon to keep your data safe -- that's why E-Bay uses Unix machines to do the important work.

  13. Re:Algebraic data types on Null References, the Billion Dollar Mistake · · Score: 1
    Because forcing inherently procedural/algorithmic code into a functional paradigm makes for readable code, AMIRITE?

    No, you're wrong, and there's no need to be so aggressive. No law says that algebraic datatypes can only appear in functional languages. They are in fact quite conceivable and useful in normal procedural languages. For example, see Pizza, a variant of Java; it has functional aspects but is very definitely procedural.

  14. Social Insecurity on The Formula That Killed Wall Street · · Score: 1
    Wall Streeters' foreknowledge of impending doom could be why they were so urgent about breaking into the Social Security piggy bank. If the $35 trillion stored there had been moved into the stock market, the stealing by Wall Street could have continued for much longer.

    Of couse, the rest of us would be even more thoroughly raped when the crash finally did come -- but what would those new millionaires and billionaires care?

  15. Re:Why do you need a special OS to run a server ?! on Windows Server 2008 One Year On — Hit Or Miss? · · Score: 1
    A typical server with 256GB of RAM would run about $60,000. This server would require the Enterprise editions of Windows Server, so that would run about $3,000.

    Think how much more hardware you could buy with that extra $3000, if you went with Linux instead. Three grand would pay for a nice data backup solution, for example.

  16. Re:Can't answer your question on Windows Server 2008 One Year On — Hit Or Miss? · · Score: 1

    E-Bay at least is not so stupid as to keep their actual data on Windows. For the really important jobs, they use Unix.

  17. Re:Wow on Solar Panels Reach $1 a Watt · · Score: 1

    I doubt their warranty covers hailstorm damage. Or ablation from sandstorms, if you live near a desert.

  18. Re:Here we go again... on Stimulus Could Kickstart US Battery Industry · · Score: 1
    If folks want a better battery then the market will provide it WITHOUT Government subsidies.

    Not always. The "market" is short sighted: it evidently prefers to spend money on developing Viagra copies rather than a cure for malaria, even though the latter would actually save millions of lives.

    And even when the market chooses correctly, the decision may not happen soon enough. Better batteries may eventually emerge without government assistance, but maybe not until long after the oil crash. Do you want to take that risk? I don't.

  19. Re:The whole point was propoganda on China Aims To Move Up the Food Chain · · Score: 1
    Funny how all his other voyages are documented.

    I assume you are referring to a possible visit of America by Zheng He, decades before Columbus. That has never been a Chinese claim; as far as I know, the originator was Gavin Menzies in his book "1421: The Year China Discovered the World" (published in 2002).

  20. Re:Culture on China Aims To Move Up the Food Chain · · Score: 1
    No. This was your original position:

    In the Chinese case, it was actually foreigners who adopted [the compass] for navigation and taught the Chinese to use it for something other than Chi lines and harmony.

    My reponse: the Chinese knew what the compass was good for and did not need any pushy foreigners to teach them. If you think I was agreeing with you, you need lessons in remedial English. However, you did a 180 in your reply, which was agreeing with me. Go ahead, keep banging your head on the table.

  21. Re:Culture on China Aims To Move Up the Food Chain · · Score: 1
    1405 was a bit late to be inventing compass navigation

    What makes you think 1405 was the first time China used the compass?

  22. Re:Culture on China Aims To Move Up the Food Chain · · Score: 1

    I see you're agreeing with me even as you think you're disagreeing.

  23. Re:The whole point was propoganda on China Aims To Move Up the Food Chain · · Score: 1
    Not that exploring the China Sea should be considered all that great an accomplishment for China.

    You need to improve your geography. Zheng He visited Africa, which is thousands of miles from the China Sea.

  24. Re:The whole point was propoganda on China Aims To Move Up the Food Chain · · Score: 1
    Zheng He's travels across the Pacific are about as proven as Noahs.

    We don't even know whether Noah was a real person. Whereas we have massive documentation, from multiple independent sources, for Zheng He and his giant fleet.

  25. Re:The whole point was propoganda on China Aims To Move Up the Food Chain · · Score: 2, Informative

    You're wrong. We have massive Chinese histories of Zheng He's fleet, written by Zheng's contemporaries. They couldn't all have been faked. Then there are the letters written by the Ming bureaucrats to each other; a fleet that size needs immense logistics, which cannot be hidden. We also have corroborating documentation from the places Zheng visited, such as Thailand, India, Indonesia, Africa. The only major question remaining is whether he visited the Americas before Columbus.