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User: weilawei

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Comments · 1,105

  1. Re:If it works on Wind Turbines With No Blades · · Score: 3, Insightful

    Mine too, and he gets rewarded for it. When he first brought one home, he came up to the door, and waited for me to open it and showed me the mouse. I told him that he was a good boy and he promptly pounced on it and devoured it.

    If you think your cat is acting weird (not you, PopeRatzo, just in general), it's probably you that needs adjustment. Cats are remarkably clear about what they want and what makes them happy or displeases them.

  2. Re:It's a PR campaign on FBI Alleges Security Researcher Tampered With a Plane's Flight Control Systems · · Score: 1

    This is a magnificent idea.

  3. Re:Mac/Linux support removed... mildly surprised on Oculus Rift Hardware Requirements Revealed, Linux and OS X Development Halted · · Score: 1

    You cannot design a Windows computer on OSX - there is no parametric 3D CAD, schematic capture, PCB layout, etc. software available on OSX.

    You may mean that there is no Solidworks support and no Altium support in OS X. In that, you would be right. However, your claims of no 3D CAD, schematic capture,or PCB layout are all factually incorrect.

    You fail at Google. Stop trashing a 6-digit UID with blatantly false information.

  4. Re:Love me some FM on RTFM? How To Write a Manual Worth Reading · · Score: 1

    Dive into source code? Maybe my time is more important that sifting through poorly structured directories full of 500 source code files each, and the 8000 instances of that variable that grep reported back.

    I don't go using pieces of software with 500 files and no documentation if I have any say in it. If you spend all your time cobbling together enormous stacks from hugely bloated libraries with no maintainer, you might run into that issue. If you don't have any say in it, you should try ack. It's like grep, but much more useful for source code.

    How many times have you downloaded a project, only to discover they didn't even give you instructions on how to compile or link the damn thing in your project? How many times have you seen a project not list their dependencies so you get to play a 15 minute game of "find the packages"?

    Many times. I am also good friends with `rm` and `apt-get`. If it doesn't explain clearly how to link against it, or it isn't obvious, I'm unlikely to spend a large amount of effort using it. It simply gets deleted and I use something better maintained. Documentation aside, if I can't even incorporate the header and library with minimal effort, it doesn't bode well for the usability of the library.

    I mean, how can we even discussing the idea that documentation doesn't matter? Is this the real world? Am I dead and in hell?

    I'd like you to quote the line where I say "documentation doesn't matter". In fact, try reading the subject of my post. I do, in fact, really like documentation, take advantage of documentation, and prefer projects with good documentation. BUT--it is still a critical skill to be able to get definitive answers without any hand-holding when shit hits the proverbial fan.

  5. Re:Old DOS Borland Developer Tools. on RTFM? How To Write a Manual Worth Reading · · Score: 2

    I initially taught myself Commodore BASIC v2 from the reference manual. That was my first programming language, and I was a very small child of 4 at the time. Clearly, that was a well written manual. I also have fond memories of QBASIC (yes, fond).

    Shortly after, I had the aid of some series of books aimed at children, which taught BASIC. As I recall, they were slim red hardcover books, and one of the examples included a little racing game. I wish I could recall what they actually were titled, as I'd love to own copies for nostalgia (I borrowed them from my local library). I also had some of those young adult books where you type in some BASIC code to see the resulting part of a story. In one of them, you were a time traveler and one of the examples decrypted a secret message. That kickstarted a serious interest in cryptography--with computers, not just a pencil and graph paper.

    Then, I learned Pascal, then C, 8086 ASM, and C++, but largely from giant books loaned from other family members (a goodly chunk of my family are/were programmers) and various text files. Later, online tutorials were a huge help.

  6. Love me some FM on RTFM? How To Write a Manual Worth Reading · · Score: 1

    The fine `man` has served me well over the years. At points, it is too terse or too verbose, but very rarely is it flat-out wrong.

    As for other projects, that's what source code is for, right? No programmer worth their salt should be afraid to dive into a random piece of code to answer a question. It's an essential skill to go from having a question to finding the implementation details and understanding them. Often, this is the only way you get a concrete answer.

    Yes, I write documentation for my stuff. Yes, I leave useful comments in my code. No, I don't expect there to be documentation for everything, and I rarely use poorly documented crap, but sometimes it is unavoidable. Most of the time, you just have to deal with it head-on (i.e., via reading source code). Occasionally, this includes fixing bugs in some poor sap's library, because you don't have the time to wait for them to fix it.

  7. Keeps the brain sharp on John Urschel: The 300 Pound Mathematician Who Hits People For a Living · · Score: 4, Insightful

    I prefer cycling and climbing myself; not really into hitting things/being hit. Sitting in a chair all the time isn't healthy.

  8. Re:relevance? on Amtrak Train Derails In Philadelphia · · Score: 1

    Yes, I posted a comment about the inappropriateness of the story. Often, things tangential or meta to the story are discussed in the comments.

    Interesting does not automatically make something appropriate for a given situation. If the interesting thing was the mechanism of the accident or the novel lifesaving techniques being used to rescue victims, it might have been more appropriate.

    I suspect your Pandora stations all mercilessly bleed over into one another.

  9. Re:relevance? on Amtrak Train Derails In Philadelphia · · Score: 1

    We don't need to wait for the official report on the cause before we start making alternative plans to get to work.

    I don't get my news on weather and traffic conditions from a technology website.

  10. Re:relevance? on Amtrak Train Derails In Philadelphia · · Score: 1

    The Mayor said during his quick press conference they won't speculate on what happened or how or why. Those are the interesting things up for debate in the court of Slashdot.

    This should be on Slashdot in a week when the NTSB gives us some preliminary findings.

  11. Re:Indian Point == Ticking Timb Bomb on Transformer Explosion Closes Nuclear Plant Unit North of NYC · · Score: 0

    s/load/energy/

    Derp. It's late.

  12. Re:Indian Point == Ticking Timb Bomb on Transformer Explosion Closes Nuclear Plant Unit North of NYC · · Score: 1

    Pull your electrical for heating (use a MSRE) from the grid. Have a mechanical (gravity operated) backup to kill the heaters if you lose the grid connection, just in case. No more heat, no more power generation. You can come up with something else for dumping the excess load in the short term (pump water, spin a flywheel, doesn't matter).

  13. Re:Battery life non-issue on Apple Watch's Hidden Diagnostic Port To Allow Battery Straps, Innovative Add-Ons · · Score: 2

    He wasn't suggesting it would reduce capacity, but increase consumption.

  14. Re:Water on Audi Creates "Fuel of the Future" Using Just Carbon Dioxide and Water · · Score: 1

    Hrm, it seems I would be wrong.

    The reaction product is a liquid made from longchain hydrocarbon compounds, known as blue crude.

    So methane is out, although I imagine they get a whole mixture of variously chained hydrocarbons since the graphic talks about using a refinery to split out diesel.

  15. Re:Water on Audi Creates "Fuel of the Future" Using Just Carbon Dioxide and Water · · Score: 1

    Yes, it does use the water, and yes, you get it back later. The water is split into H2 and O, then 4H2 are used to make CH4. When CH4 is burned in 2O2, you get CO2 + 2H2O. The same applies when they take their "Blue Crude" (very likely methane) and turn it into a longer-chained hydrocarbon.

  16. Re:With the best will in the world... on Audi Creates "Fuel of the Future" Using Just Carbon Dioxide and Water · · Score: 3, Insightful

    5: The Sabatier reaction is over 100 years old. The process itself at factory scale may be encumbered by patents.
    7: Nickel, ruthenium on alumina, ruthenium on titanium dioxide, and several others have been tried in the open literature.

  17. Re:Acid is not a power source. on Swallowing Your Password · · Score: 1

    ...and any time you needed a password for something, you could go with your gut!

    I tried putting in "yourgut!" for my most recent password, and it failed the security check for not having a capital letter or a number. What kind of lousy password suggestions are you peddling?!

    Instead, I went with "Yourgut1!" and now it tells me that it's Highly Secure.

  18. Re:Biometric honesty on Swallowing Your Password · · Score: 1

    Better open it up. They might have used a Russian nesting skimmer.

  19. Re: Silly on Swallowing Your Password · · Score: 1

    Identity is a capability. What do you ask someone to do? Identify themselves. How do they do it? By providing a piece of information you know to be known to them, either by fact of being born attached to it, or by fact of regurgitating it somehow.

    All the bank needs is assurance that you're the only one likely to possess it, short of dedicated efforts to illicitly acquire it. Assurance is not a black and white thing, settled once and for all; it's a bar you have to jump over. That's the whole idea of security.

  20. Re:Wheee on Swallowing Your Password · · Score: 1

    Not particularly. It's been tried throughout history; I don't see why they couldn't do it, again. Question is, who gets the short stick this time?

  21. Re:Realistic on Scientists Locate Sunken, Radioactive Aircraft Carrier Off California Coast · · Score: 1

    You can't recycle America's arsenal like it was a bag of soda cans.

    Why not?

  22. Re:Too easy man on An Engineering Analysis of the Falcon 9 First Stage Landing Failure · · Score: 1

    You've got to slow the top half down too. Inertia is still a thing. If you suddenly stop the bottom but the top keeps going, you get half a stage. I'm not sure the body is built to take a load from that direction.

  23. Re: Lifestyle on California Looks To the Sea For a Drink of Water · · Score: 1

    How big is a 55 gallon drum? About the size of a bathtub? Asked Google, and it told me:

    Many drums have a common nominal volume of 208 litres (55 US gal; 46 imp gal) and nominally measure just under 880 millimetres (35 in) tall with a diameter just under 610 millimetres (24 in) and differ by holding about thirteen gallons more than a barrel of crude oil.

    178 gallons / 55 gallons/drum ~= 3.24 drums

    How big is a bathtub?

    The capacity of an average, US, standard run-of-the-mill built in bathtub filled up to the very bottom of the overflow, which is as full as you can get it is approx. 42 gallons

    Let me clarify. All the standard size American Standard tubs are 42 gallons. I also went to the Kohler site and they are the same.

    178 gallons / 42 gallons/bathtub ~= 4.24 bathtubs

  24. Re:I missed something there on Would-Be Bomber Arrested In Kansas; Planned Suicide Attack on Ft. Riley · · Score: 1

    Indeed, you missed the first two paragraphs of the FA.

    TOPEKA, Kan. — A 20-year-old man was arrested Friday while trying to arm what he thought was a 1,000-pound bomb near a Kansas military base as part of a plot to support the Islamic State group, federal prosecutors said.

    John T. Booker Jr. is accused of planning a suicide attack at Fort Riley, about 70 miles west of Topeka. Prosecutors allege he told an FBI informant he wanted to kill Americans and engage in violent jihad on behalf of the terrorist group, and said he believed such an attack was justified because the Quran "says to kill your enemies wherever they are," according to a criminal complaint.

    /yes, I know, nobody reads TFA

  25. Re:Terrorism brought to you by the FBI on Would-Be Bomber Arrested In Kansas; Planned Suicide Attack on Ft. Riley · · Score: 1

    *intent*, clearly formed and sustained, is all that is needed,

    Actually, you need means, motive, and opportunity. There must be a guilty act, and the responsible party must show ability to commit the crime (not demonstrated, since the FBI did everything for him), the motive to commit the crime (clearly demonstrated), and opportunity to commit the crime (it is not clear he would have had opportunity without the FBI giving it to him).