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• Hack a Nintendo Zapper into a Real Life Laser Blaster

  - by Jason Fitzpatrick

  Why settle for zapping ducks on the screen when you could be popping balloons and lighting matches on fire? This awesome (but rather dangerous) hack turns an old Nintendo zapper into a legitimate laser gun. Courtesy of the tinkers over at North Street Labs, we’re treated to a Nintendo zapper overhaul that replaces the guts with a powerful 2W blue laser, a battery pack, and a keyed safety switch. Check out the video below to see the laser blaster in action: For more information on the build and a pile of more-than-merited safety warnings, hit up the link below. Nintendo Zapper 2W+ Laser [via Boing Boing] 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• Speaking at AMD Fusion conference

  - by Daniel Moth

  Next Wednesday at 2pm I will be presenting a session at the AMD Fusion developer summit in Bellevue, Washington State. For more on this conference please visit the official website. If you filter the catalog by 'Speaker Last Name' to "Moth", you'll find my talk. For your convenience, below is the title and abstract Blazing-fast code using GPUs and more, with Microsoft Visual C++ To get full performance out of mainstream hardware, high-performance code needs to harness, not only multi-core CPUs, but also GPUs (whether discrete cards or integrated in the processor) and other compute accelerators to achieve orders-of-magnitude speed-up for data parallel algorithms. How can you as a C++ developer fully utilize all that heterogeneous hardware from your Visual Studio environment? How can your code benefit from this tremendous performance boost without sacrificing your developer productivity or the portability of your solution? The answers will be presented in this session that introduces a new technology from Microsoft. Hope to see many of you there! Comments about this post welcome at the original blog.

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• Symlink are using both locations?

  - by Tiago Rossi

  Ive made a research and didnt found any answers, so I decided to ask here. To make you know, the /dev/sda2 disk of my WHM/Cpanel webserver got 100% full. The /var/ folder are the /dev/sda2 and I've found the reason of that isse are the /var/lib/mysql folder. To fix it I need to move the /var/lib/mysql folder from /dev/sda2 to /home/ where I have a lot of space in disk. Then I used the command lines: service mysql stop cp -r -p /var/lib/mysql/ /home/databasesmysql/ mv /var/lib/mysql /var/lib/mysql.backup/ ln -s /home/databasesmysql/ /var/lib/mysql service mysql start Ok, now to check if its running at the new location I just renamed the /var/lib/mysql to /var/lib/mysql.backup and MySQL stopped working. Also when I rename the /home/databasesmysql/ folder MySQL also stop to work. I dont know whats happening, the symlink are using both locations? Thanks very much.

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• What's the best platform for blogging about coding ?

  - by timday

  I'm toying with starting an occasional blog for posting odd bits of coding related stuff (mainly C++, probably). Are there any platforms which can be recommended as providing exceptionally good support (e.g syntax highlighting) for posting snippets of code ? (Or any to avoid because posting mono-spaced font blocks of text is a pain). Outcome: I accepted Josh K's answer because what I actually ended up doing was realizing I was more interested in articles than a blog style, getting back into LaTeX (after almost 20 years away from it), using the "listings" package for code, and pushing the HTML/PDF results to my ISP's static-hosting pages. (HTML generated using tex4ht). Kudos to the answers mentioning Wordpress, Tumblr and Jekyll; I spent some time looking into all of them.

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• Studies on code documentation productivity gains/losses

  - by J T

  Hi everyone, After much searching, I have failed to answer a basic question pertaining to an assumed known in the software development world: WHAT IS KNOWN: Enforcing a strict policy on adequate code documentation (be it Doxygen tags, Javadoc, or simply an abundance of comments) adds over-head to the time required to develop code. BUT: Having thorough documentation (or even an API) brings with it productivity gains (one assumes) in new and seasoned developers when they are adding features, or fixing bugs down the road. THE QUESTION: Is the added development time required to guarantee such documentation offset by the gains in productivity down-the-road (in a strictly economical sense)? I am looking for case studies, or answers that can bring with them objective evidence supporting the conclusions that are drawn. Thanks in advance!

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• What is the difference between Static code analysis and code review?

  - by Xander

  I just wanted to know what is the difference between static code analysis and code review. How these two are done? What are the tools available today for code review/ static analysis of PHP. I also like to know about good tools for any language code review. Thanks in Advance. Xander Cage Note: I am asking this because I was not able to understand the difference. Please, I expect some answers than "I am Mr.Geek and you asked an irrelevant bla bla..... this is closed". I know this sounds mean. But I am sorry.

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• Symbolic Link: No such file or directory

  - by Sehe

  i created a symbolic Link from a File at "/opt/bladir/bla" to "bla". So "bla" is now in "/usr/bin/bla". But if i want to call "bla" at terminal, there comes the No such file or directory error. I looked up at "/usr/bin/bla" and the file is linking correctly at "/opt/bladir/bla". What can be the error? P.S. here is my terminal "entry": sudo ln -s /opt/bladir/bla bla Thanks! €: Problem solved. According to the Feature List, 12.04 should have Multiarch support... 'should'. I got the ia32-libs from synaptic and now the program wents just fine. As it looks, my symbolic links where correct. Thank you for all the answers!

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• URL SEO : Using directories or exact keyword phrase in the URL [duplicate]

  - by rahul14gt

  This question already has an answer here: What is the best stucture of SEO friendly URL? 3 answers I am trying to understand how to best optimise a url for a page to rank high for specific keywords. Example: a top keyword search is "rental properties in new york". Question is does this keyword need to appear as this exact phrase in the url or should it be broken up into different directories for a better structure e.g.: www.abc.com/en/properties/new-york/rental OR www.abc.com/en/rental-properties-in-new-york Which will help the page rank higher (given all other things on the page are exactly the same)? Thanks!

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• Would a professional, self taught programmer benefit from reading an algorithms book?

  - by user65483

  I'm a 100% self taught, professional programmer (I've worked at a few web startups and made a few independent games). I've read quite a few of the "essential" books (Clean Code, The Pragmatic Programmer, Code Complete, SICP, K&R). I'm considering reading Introduction to Algorithms. I've asked a few colleagues if reading it will improve my programming skills, and I got very mixed answers. A few said yes, a few said no, and a one said "only if you spend a lot of time implementing these algorithms" (I don't). So, I figured I'd ask Stack Exchange. Is it worth the time to read about algorithms if you're a professional programmer who seldom needs to use complex algorithms? For what it's worth, I have a strong mathematical background (have a 2 year degree in Mathematics; took Linear Algebra, Differential Equations, Calc I-III).

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• How do I resize my emacs22 window?

  - by Evan

  I tried searching for answers but can't find any. I'm running Ubuntu 10.04 LTS and have emacs22 installed: ii emacs22 22.2-0ubuntu9 The GNU Emacs editor (Emacs 22) ii emacs22-bin-common 22.2-0ubuntu9 The GNU Emacs editor's shared, architecture dependent file ii emacs22-common 22.2-0ubuntu9 The GNU Emacs editor's common infrastructure ii emacsen-common 1.4.19ubuntu1 Common facilities for all emacsen I find that I cannot resize the outer frame (X window) of the emacs session. When I move the mouse to the corner of the window, it doesn't change into the resize icon.... help!

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• How do I explain the importance of NUNIT Test cases to my Colleagues [duplicate]

  - by JNL

  This question already has an answer here: How to explain the value of unit testing 6 answers I am currently working in Software Development for applications including lot of Mathematical Calculations. As a result there are lot of test cases that we need to consider. We donot have any NUNIT Test case system, I am wonderring how should I get the advantages of implementing the NUNIT testing in front of my colleagues and my boss. I am pretty sure, it would be of great help for our team. Any help regarding the same, will be higly appreciated.

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• Are log records removed from ldf file for rollbacks?

  - by TiborKaraszi

  Seems like a simple enough question, right? This question (but more targeted, read on) was raised in an MCT forum. While the discussion was on-going and and I tried to come up with answers, I realized that this question are really several questions. First, what is a rollback? I can see three different types of rollbacks (there might be more, of course): Regular rollback, as in ROLLBACK TRAN (or lost/terminated connection) Rollback done by restore recovery. I.e., end-time of backup included some transaciton...(read more)

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• Should I Leave My Laptop Plugged In All The Time?

  - by Jason Fitzpatrick

  Should you leave your laptop plugged in and charging when you’re not on-the-go? What’s best for the battery? What’s best for your user experience? Read on as we investigate. Image available as wallpaper-size download here. Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• What are QUICK interview questions for the Microsoft stack development jobs?

  - by Dubmun

  I'm looking for your best "quick answer" technical interview questions. We are a 100% Microsoft shop and do the majority of our development on the ASP.NET web stack in C# and have a custom SOA framework also written in C#. We use a combination of Web Forms, MVC, Web Services, WCF, Entity Framework, SQL Server, TSQL, jQuery, LINQ, and TFS in a SCRUM environment. We are currently on .NET 3.5 with a very near transition to .NET 4.0. Our interviewing process includes a 55 minute interview with two technical people (usually an architect and a senior developer). The two interviewers have to share the time for questions. That isn't enough time for very many true programming problems so I'm looking for more good questions that have quick, yet meaningful, answers. We are mainly interviewing for Senior Dev positions right now but may interview for some Juniors in the future. Please help?

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• How to design a leaderboard?

  - by PeterK

  This sounds like an easy thing but when i considering the following Many players Some have played many games and some just started Different type of statistics ...on what information should the actual ranking be based on. I am planning to display the board in a UITableView so there is limited space available per player. However, I am not bound to the UITableView if there is a better solution. This is a quiz game and the information i am currently capturing per player is: #games played totally #games played per game type (current version have only one game type) #questions answered #correct answers Maybe i should include additional information. I have been thinking about having a leaderboard property page where the player can decide on what basis the leaderboard should display information but would like to avoid the complexity in that. However, if that is needed i will do it. Anyone that can give me some advice on how to design the presentation of this would be highly appreciated?

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• Admin form that generates an email confirmation ends up in SPAM [duplicate]

  - by PJD Creative

  This question already has an answer here: How can I prevent my mail from being classified as spam? 10 answers I have an admin form that I have setup for a client, that generates an email confirmation from a template I have designer... It works really well but it ends up in spam some of the time, and this is real frustrating as it is just confirming some details for the customer of what they have just booked, not at all spam, and is accessed via a page where the admin requires login. Any suggestions as to why this may end up in spam. It does have dollar signs ($$) as it is confirming a price, im assuming this is one problem, the rest of it is just general dates and info about the confirmation. Is there any suggestions on how to get this out of spam? thanks in advance

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• How can calculus and linear algebra be useful to a system programmer?

  - by Victor

  I found a website saying that calculus and linear algebra are necessary for System Programming. System Programming, as far as I know, is about osdev, drivers, utilities and so on. I just can't figure out how calculus and linear algebra can be helpful on that. I know that calculus has several applications in science, but in this particular field of programming I just can't imagine how calculus can be so important. The information was on this site: http://www.wikihow.com/Become-a-Programmer Edit: Some answers here are explaining about algorithm complexity and optimization. When I made this question I was trying to be more specific about the area of System's Programming. Algorithm complexity and optimization can be applied to any area of programming not just System's Programming. That may be why I wasn't able to came up with such thinking at the time of the question.

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• Game of Thrones Style Sigils for Video Games

  - by Jason Fitzpatrick

  What would the video game families of the Mushroom Kingdom, Hyrule, and more look like if they were represented by Game of Thrones style sigils? Dorkly shows us the House of Mario, Link, and more. Hit up the link below to check out the imagined sigils for a variety of video games families–if you’re in the mood for wallpapers based on the actual Game of Thrones families, makes sure to check out the Extras section for the show on HBO.com. Game of Thrones House Sigils for Video Game Families [via Neatorama] 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• At what visitor share do you stop supporting a given browser?

  - by adam

  I'm lead dev for a large website which has a higher than average percentage of IE6 users - about 4.4% of our audience. Our new version is going to make use of progressive enhancement - including transitions and effects as well as rounded corners, gradients, web fonts and other CSS techniques. Obviously there are cross-browser ways to achieve most of these things which require various amounts of work to implement. What I'm currently looking into - and what I'd like your experiences of - is how to decide at what point we draw the line between providing an enhanced experience vs just supporting the functionality. FYI, I believe that this question meets the six guidelines for great subjective questions as defined in the FAQ. I'm after answers detailing why and how, not too short, with constructive comments, experiences, facts and references. Thanks! Adam

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• Dynamic audio score/music

  - by Joel Martinez

  I'm interested in developing a game who's background music changes with the mood and scenario of the game's action. Of course many existing games do this (halo for example), but I was interested in any resources/papers/articles talking about the techniques to develop a system like this. I have some ideas, and I understand that this will be equally challenging to implement at the code level as it will be to come up or acquire music that fits this model. Any links or, answers with ideas in them would he appreciated. Edit: this is the kind of info I'm looking for :) http://halo.bungie.org/misc/gdc.2002.music/

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• What are the appropriate mount options for a shared NTFS partition on an SSD in a dual boot Ubuntu/Windows setup?

  - by Andreas Jonsson

  I have Ubuntu 13.10 and Windows 7 installed in dual boot on a single SSD. In addition they share an NTFS partition where I put all my data and documents. What is the optimal way to mount this NTFS partition in /etc/fstab (considering performance and minimizing wear of the SSD)? Similar questions have been asked, but I could not find answers to this particular scenario. As I understand it, the mount option 'discard' is not supported for NTFS and so should not be used (although it is recommended here). Another often quoted mount option is 'noatime'. I use it for my ext4 partitions. Does it apply to NTFS? My current /etc/fstab line is: UUID=XXXXXXXXXXXXXXXX /dos ntfs defaults,nls=utf8,uid=1000,gid=1000 0 0

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• Need new developers-laptop, with ubuntu. Multiple ext displays, ssd, dock, NO DVD [closed]

  - by Ole Morten Amundsen

  I'm having a really hard time finding a great alternative for Macbook Pro (I have a MB pro '08). I'd like to return to ubuntu and need a kick-ass laptop. If you help, you've lead me back to linux :) Req: ubuntu friendly lots of memory 8G+ ssd 160GB+ great processor (intel sandy?) connect up to three external displays. this triple display looks cool No optical drive, NO DVD 13-17" dock. In place of the ridiculous optical drive (It's like having a floppy drive IMO): extra battery? 2nd ssd? extra graphics card? your suggestion The laptop should be designed for not having dvd. I can't find many, unless they are tiny 11"... I'm exited to know your answers!

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• What is the easiest (preferably) graphical way to clone a hard drive to an image that I can open later?

  - by Roland Taylor

  I need to make a (preferably) mountable image of an 80GB Hdd, and store it on another hard drive. Is there some way that I can do this without losing data? Thanks for the answers I've received so far. The system in question cannot be used right now due to a problem with the power button :( [ugh!], but the information will really be useful =)! Thanks to all who answered so far, if anyone else wants to give me some tips I'll leave this open for a bit, as I still have not yet been able to clone the drive.

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• How to chose a develop method?

  - by Martin

  There are many academic/industrial researchs about various development methods (Scrum, XP, waterfall, ect.), telling us how to do it right and stuff. But I never saw something that suggest how to choose a method, what will be better for a given project. I know that what the developers are used to is an very important aspect. But lets say that I am assembling a new group from scratch, and that every programmer in the world is willing to work with me. :) What aspects of the project should I consider to decide between Scrum, XP, TDD, ect.? Or is that an entirely human thing, regardless of what is being developed? I said that all programmers are available, but you may comment they're knowledge about the domain, or other characteristics in the answers. E.g. "If you chose to hire people with no domain knowledge, MethodX is better than MathodY, beacause ...." is a completely welcomed answer.

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• Boot path not found, cannot start OS

  - by Dustin

  My desktop is 12.04 64bit, and it cannot boot from the hard drive anymore. When I attempt to it just is stuck on a blank screen with an blinking dash, and nothing happens. I checked with the bios trouble shoot for problems and it said that no boot path could be found. I do not know why this is happening, but need to fix it because it used to boot up normally. What I need to know is how to fix it. I can boot into a live DVD. Also, there were a few boots I would attempt to boot into a live USB, then it would boot to the hard drive, but that does not work any more. So with the live DVD (it is an 10.04 LTS 32bit), is there any means to correct the boot path from the live DVD? Thank you for your time and answers.

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