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• Enjoy the 22nd 2012 Ig Nobel Awards Ceremony [Video]

  - by Jason Fitzpatrick

  Last night was the 22nd Ig Nobel award ceremony. If you weren’t there to experience the festivities first hand, don’t despair–you can watch the entire ceremony here. If you’re unfamiliar with the Ig Nobel awards Improbable Research, the group behind the awards, is happy to explain: The Ig Nobel Prizes honor achievements that first make people laugh, and then make them think. The prizes are intended to celebrate the unusual, honor the imaginative — and spur people’s interest in science, medicine, and technology. Every year, in a gala ceremony in Harvard’s Sanders Theatre, 1200 splendidly eccentric spectators watch the winners step forward to accept their Prizes. These are physically handed out by genuinely bemused genuine Nobel laureates. Check out the above video to see the awards ceremony (jump to around the 50:00 mark to skip the setup phase) or hit up the link below to read about the 2012 winners. The 2012 Ig Nobel Prize Winners How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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• Demonstrate bad code to client?

  - by jtiger

  I have a new client that has asked me to do a redesign of their website, an ASP.NET Webforms application that was developed by another consultant. It seemed straight-forward (it never is) but I took a look at the code to make sure I knew what I was in for. This application was not written well. At all. It is extremely vulnerable to SQL Injection attacks, business logic is spread throughout the entire application, a lot of duplication, and dead end code that does nothing. On top of that, it keeps throwing exceptions that are being smothered, so it all appears to be running smoothly. My job is to simply update the html and css, but much of the html is being generated in business logic and would be a nightmare for me to sort everything out. My estimates on the redesign were longer than the client was aiming for, and they are asking why so long. How can I explain to my client just how bad this code is? In their mind, the application is running great and the redesign should be a quick one-off. It's my word against the previous consultant, so how can I actually give simple, concrete examples that a non-technical client would understand?

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• How can I improve my error checking and handling?

  - by Google

  Lately I have been struggling to understand what the right amount of checking is and what the proper methods are. I have a few questions regarding this: What is the proper way to check for errors (bad input, bad states, etc)? Is it better to explicitly check for errors, or use functions like asserts which can be optimized out of your final code? I feel like explicitly checking clutters a program with a lot of extra code which shouldn't be executed in most situations anyway-- and not to mention most errors end up with an abort/exit failure. Why clutter a function with explicit checks just to abort? I have looked for asserts versus explicit checking of errors and found little to truly explain when to do either. Most say 'use asserts to check for logic errors and use explicit checks to check for other failures.' This doesn't seem to get us very far though. Would we say this is feasible: Malloc returning null, check explictly API user inserting odd input for functions, use asserts Would this make me any better at error checking? What else can I do? I really want to improve and write better, 'professional' code.

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• how to find and filter blobs from segment image using python?

  - by Python Team

  Am trying to detect number plate from an image.I have converted an image to grayscale and segment image. Now i have to find and filter blobs from an image and to detect number plate from an image. I will explain what i did.. I jus read segment image license_plate = cv2.imread('license1_segmented.png',cv2.CV_LOAD_IMAGE_COLOR) license_plate_size = (license_plate.shape[1], license_plate.shape[0]) mask = cv2.cv.CreateImage (license_plate_size, 8, 1) cv2.cv.Set(mask, 1) thresh_image_ipl = cv2.cv.CreateImage(license_plate_size, cv2.cv.IPL_DEPTH_8U, 1) cv2.cv.SetData(thresh_image_ipl,thresh_image.tostring(),thresh_image.dtype.itemsize * 1 * thresh_image.shape[1]) min_blob_size = 100 # Blob must be 30 px by 30 px max_blob_size = 10000 threshold = 100 **myblobs = CBlobResult(thresh_image_ipl,mask, threshold, True)** myblobs.filter_blobs(min_blob_size, max_blob_size) blob_count = myblobs.GetNumBlobs() trying to find and filter blobs from an image.But am getting error while passing the parameters to CBlobResult which i highlighted above code.I mentioned the error below what i get while passing. Traceback (most recent call last): File "rectdetect1.py", line 110, in <module> myblobs = CBlobResult(thresh_image_ipl,image_area, threshold, True) File "/home/oomsys/pyblobs-read-only/blobs/BlobResult.py", line 92, in __init__ this = _BlobResult.new_CBlobResult(*args) NotImplementedError: Wrong number or type of arguments for overloaded function 'new_CBlobResult'. Possible C/C++ prototypes are: CBlobResult::CBlobResult() CBlobResult::CBlobResult(IplImage *,IplImage *,int,bool) CBlobResult::CBlobResult(CBlobResult const &) Anyone help me to find out the erros and to solve this and all... Thanks in advance...

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• Android threads trouble wrapping my head around design

  - by semajhan

  I am having trouble wrapping my head around game design. On the android platform, I have an activity and set its content view with a custom surface view. The custom surface view acts as my panel and I create instances of all classes and do all the drawing and calculation in there. Question: Should I instead create the instances of other classes in my activity? Now I create a custom thread class that handles the game loop. Question: How do I use this one class in all my activities? Or do I have to create a separate instance of the extended thread class each time? In my previous game, I had multiple levels that had to create an instance of the thread class and in the thread class I had to set constructor methods for each separate level and in the loop use a switch statement to check which level it needs to render and update. Sorry if that sounds confusing. I just want to know if the method I am using is inefficient (which it probably is) and how to go about designing it the correct way. I have read many tutorials out there and I am still having lots of trouble with this particular topic. Maybe a link to a some tutorials that explain this? Thanks.

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• Using gluLookAt to move camera in 2D iPhone game ?

  - by Mr.Gando

  Hey guys, I'm trying to use gluLookAt to move the camera in my iPhone game, but every time I've tried to use gluLookAt my screen just goes "blank" ( grey in this case ) I'm trying to render a simple triangle and to move the camera, this is my code: to setup my scene I do: glViewport(0, 0, backingWidth, backingHeight); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glRotatef(-90.0, 0.0, 0.0, 1.0); //using iPhone in horizontal mode glOrthof(-240, 240, -160, 160, -1, 1); glMatrixMode(GL_MODELVIEW); then my "triangle rendering" code looks like: GLfloat triangle[] = {0, 100, 100, 0, -100, 0,}; glClearColor(0.7, 0.7, 0.7, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnableClientState(GL_VERTEX_ARRAY); glColor4f(1.0, 0.0, 0.0, 1.0); glVertexPointer(2, GL_FLOAT, 0, &triangle); glDrawArrays(GL_TRIANGLES, 0, 6); glDisableClientState(GL_VERTEX_ARRAY); This draws a red triangle in the middle of the screen, when I try to apply gluLookAt ( I got the implementation of the function from Cocos2D so I asume it's correct ), i do: glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0,0,1,0,0,0,0,0,1); // try to move the camera a bit ? GLfloat triangle[] = {0, 100, 100, 0, -100, 0,}; glClearColor(0.7, 0.7, 0.7, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnableClientState(GL_VERTEX_ARRAY); glColor4f(1.0, 0.0, 0.0, 1.0); glVertexPointer(2, GL_FLOAT, 0, &triangle); glDrawArrays(GL_TRIANGLES, 0, 6); glDisableClientState(GL_VERTEX_ARRAY); This leads me to grey screen (glClearColor is grey), I've tried all sort of things and read what I've found about gluLookAt on the net, but no luck :(, if someone could explain me or show me how to move to move the camera in a top-down fashion ( zelda, etc ), I would really appreciate it. Thanks!

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• Is LINQ to objects a collection of combinators?

  - by Jimmy Hoffa

  I was just trying to explain the usefulness of combinators to a colleague and I told him LINQ to objects are like combinators as they exhibit the same value, the ability to combine small pieces to create a single large piece. Though I don't know that I can call LINQ to objects combinators. I've seen 2 levels of definition for combinator that I generalize as such: A combinator is a function which only uses things passed to it A combinator is a function which only uses things passed to it and other standard atomic functions but not state The first is very rigid and can be seen in the combinatory calculus systems and in haskell things like $ and . and various similar functions meet this rule. The second is less rigid and would allow something like sum as it uses the + function which was not passed in but is standard and not stateful. Though the LINQ extensions in C# use state in their iteration models, so I feel I can't say they're combinators. Can someone who understands the definition of a combinator more thoroughly and with more experience in these realms give a distinct ruling on this? Are my definitions of 'combinator' wrong to begin with?

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• Ubuntu security with services running from /opt

  - by thejartender

  It took me a while to understand what's going on here (I think), but can someone explain to me if there are security risks with regards to my logic of what's going on here as I am trying to set up a home web server as a developer with some good Linux knowledge? Ubuntu is not like other systems, as it has restricted the root user account. You can not log in as root or su to root. This was a problem for me as I have had to install numerous applications and services to /opt as per user documentation (XAMPPfor Linux is a good example). The problem here is that this directory is owned by root:root. I notice that my admin user account does not belong to root group through the following command: groups username so my understanding is that even though the files and services that I place in /opt belong to root, executing them by means of sudo (as required) does not mean that they are run as root? I imagine that the sudo command is hidden somewhere under belonging to the root user and has a 775 permission? So the question I have is if running a service like Tomcat, Apcahe, etc exposes my system like on other systems? Obviously I need to secure these in configurations, but isn't the golden rule to never run something as root? What happens if I have multiple services running under same user/group with regards to a compromised server?

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• Booting sequence. Ubuntu 12.04 installation and cohabitation with former OSes

  - by Stephane Rolland

  I am on the brink of installing Ubuntu 12.04 Precise Pengolin on the first primary partition of my hard-drive. (A day in History for me since I had always kept a MS windows at this first place). But I have some fears: This is my last computer available (In the past I used to have 2 or even 3 machines so I could always un/plug HDs for recovery operations and rescue) The current booting sequence is not straight forard. So as to explain the boot sequence let me briefly sum-up the history of this laptop computer. It was a dedicated Windows Vista computer. 1st and only Primary partition. Then I added Windows 7 (on the 2nd primary partition) letting the Windows Vista Boot Loader manage the boot sequence. Then I added Ubuntu 10.04 Lucid Lynx on the 1st sub-partition of the Extended Partitionm asking Grub to be the boot loader. But when I ask Grub to launch windows it launches the Vista BootLoader that manages the choice betzeen Vista and 7. So in theory Grub is on the MasterBootRecord - though I understand where the Vista BootLoader remains. Now, I will no longer use the Ubuntu 10.04 ( on extended partition) and also the Windows vista (on the first primary partition). I will install Ubuntu 12.04 on the First Primary, asking it to install a new bootloader. I want to keep the Windows 7 that is already on the Second Primary partition. And I want it to be loaded by the Ubuntu Boot loader(I don4t knoz zhich is included in this version)... And I am afraid the last point will not work.

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• Oracle University Seminars April/May/June 2012

  - by A&C Redaktion

  Normal 0 21 false false false DE X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Oracle University's Expert Seminars are exclusive events delivered by top experts with years of experience in working with Oracle products. The seminars topics cover the breadth of the Oracle portfolio and are aimed at helping you to get the most of your Oracle products and to stay connected with new technologies. We currently have the following events scheduled: RAC Performance Tuning Online with Arup Nanda - 30 Apr 2012 Understanding Explain Plans & Index Utilization Online with Dan Hotka - 8-9 May 2012 Writing Optimal SQL & Troubleshooting & Tuning with Jonathan Lewis, Düsseldorf, 9-10 May 2012 Flashback Techniques in Oracle11g with Carl Dudley, München, 14 May 2012 Minimize Downtime with Rolling Upgrade using Data Guard with Uwe Hesse, München, 16 May 2012 Enterprise Business Intelligence 11g Advanced Development Online with Mark Rittman – 24-25 May Mastering Backup & Recovery with Francisco Munoz Alvarez, Düsseldorf, 29-30 May 2012 Real World Java EE 6 – Re-thinking Best Practice with Adam Bien, München, 15 Jun 2012

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• Packard Bell EasyNote MZ35 freezes when AC unplugged and wireless on

  - by Sense Hofstede

  I would like to ask for some help debugging an irritating problem I'm having with my Packard Bell EasyNote MZ35 and Ubuntu 10.10. Always when the laptop is connected to a wireless network and the AC power lead is unplugged—so it's running on battery power—the system freezes. The screen turns black and shows the error GLib-WARNING **: getpwuid_r(): failed due to unknown user id (0), although this error is completely unrelated to the actual problem. Previous searches on the internet indicate that this error is unrelated to the bug I'm experiencing. It is suggested that Ubuntu tries to hibernate or suspend and that you're seeing the black screen running 'behind' the X server. That would explain the fact that curiously you still see—but cannot move—the mouse cursor. I've already set all the values of the GConf keys in /apps/gnome-power-manager/actions/ to 'nothing', disabled all power management actions I could find, but it didn't solve the problem. It is important to note that the freeze doesn't happen immediately after you unplug the AC power lead. The icon in the notification area may have changed already, but the freeze only occurs when the Notify OSD bubble appears that tells you how many time is left with your battery. Does anyone here have a clue about this problem? A workaround or the cause? If anyone could help me with disabling possible suspend/hibernate behaviour that might be related to this issue, that would be appreciated too. This issue has been reported as bug #666852.

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• How old is "too old"?

  - by Dori

  I've been told that to be taken seriously as a job applicant, I should drop years of relevant experience off my résumé, remove the year I got my degree, or both. Or not even bother applying, because no one wants to hire programmers older than them.1 Or that I should found a company, not because I want to, or because I have a product I care about, but because that way I can get a job if/when my company is acquired. Or that I should focus more on management jobs (which I've successfully done in the past) because… well, they couldn't really explain this one, except the implication was that over a certain age you're a loser if you're still writing code. But I like writing code. Have you seen this? Is this only a local (Northern California) issue? If you've ever hired programmers:2 Of the résumés you've received, how old was the eldest applicant? What was the age of the oldest person you've interviewed? How old (when hired) was the oldest person you hired? How old is "too old" to employed as a programmer? 1 I'm assuming all applicants have equivalent applicable experience. This isn't about someone with three decades of COBOL applying for a Java guru job. 2 Yes, I know that (at least in the US) you aren't supposed to ask how old an applicant is. In my experience, though, you can get a general idea from a résumé.

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• How to organize a programming course?

  - by Bogdan Gavril

  I've been given the task to train our manual testers to become developers in test (write test automation!). some have basic programing knowledge (either dabbling in PHP or reading stuff) and some who have no experience. Note that I do have teaching experience, but with real students, not employees, and one concern is that they will not put extra hours except the 20% management gave them for the transition. Language to be taught and used: C# We have 8 hours per week to do this and should decide if they will make it in 2 months. I am thinking of a combined approach: use a manual such as Head First C# (although I'm not happy with the labs, they're mostly games and I don't want to add UI complexities) have them read from the manual do labs with them, solving more and more difficult problems and explain the theoretical stuff as well have them do a bigger project towards the end Some questions: do you have a better suggestion as far as manuals go? do you have a better aproach? Focus less on labs? what kind of assesments should I use and how often? should I let them do a bigger project (bank system or small game) and how much time should I invest in that? ideeas on labs? other resources ? Any other tips would be most welcomed! Thanks!

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• How to practice object oriented programming?

  - by user1620696

  I've always programmed in procedural languages and currently I'm moving towards object orientation. The main problem I've faced is that I can't see a way to practice object orientation in an effective way. I'll explain my point. When I've learned PHP and C it was pretty easy to practice: it was just matter of choosing something and thinking about an algorithm for that thing. In PHP for example, it was matter os sitting down and thinking: "well, just to practice, let me build one application with an administration area where people can add products". This was pretty easy, it was matter of thinking of an algorithm to register some user, to login the user, and to add the products. Combining these with PHP features, it was a good way to practice. Now, in object orientation we have lots of additional things. It's not just a matter of thinking about an algorithm, but analysing requirements deeper, writing use cases, figuring out class diagrams, properties and methods, setting up dependency injection and lots of things. The main point is that in the way I've been learning object orientation it seems that a good design is crucial, while in procedural languages one vague idea was enough. I'm not saying that in procedural languages we can write good software without design, just that for sake of practicing it is feasible, while in object orientation it seems not feasible to go without a good design, even for practicing. This seems to be a problem, because if each time I'm going to practice I need to figure out tons of requirements, use cases and so on, it seems to become not a good way to become better at object orientation, because this requires me to have one whole idea for an app everytime I'm going to practice. Because of that, what's a good way to practice object orientation?

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• Implementing Light Volume Front Faces

  - by cubrman

  I recently read an article about light indexed deferred rendering from here: http://code.google.com/p/lightindexed-deferredrender/ It explains its ideas in a clear way, but there was one point that I failed to understand. It in fact is one of the most interesting ones, as it explains how to implement transparency with this approach: Typically when rendering light volumes in deferred rendering, only surfaces that intersect the light volume are marked and lit. This is generally accomplished by a “shadow volume like” technique of rendering back faces – incrementing stencil where depth is greater than – then rendering front faces and only accepting when depth is less than and stencil is not zero. By only rendering front faces where depth is less than, all future lookups by fragments in the forward rendering pass will get all possible lights that could hit the fragment. Can anyone explain how exactly you need to render only front faces? Another question is why do you need the front faces at all? Why can't we simply render all the lights and store the ones that overlap at this pixel in a texture? Does this approach serves as a cut-off plane to discard lights blocked by opaque geometry?

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• My Windows 8 App in Windows Store

  - by Stephen.Walther

  Finally, you have a good reason to upgrade to Windows 8! My Brain Eaters app was just accepted into the Windows Store. Just in time for Halloween! The Brain Eaters app is a sample app from my soon to be released book Windows 8 Apps with HTML5 and JavaScript. The game illustrates several important programming concepts which you need when building Windows 8 games with JavaScript such as using HTML5 Canvas and the new requestAnimationFrame() method. If you are looking for Halo or Call of Duty then you will be disappointed. If you are looking for PAC-MAN then you will be disappointed. I created the simplest arcade game that I could imagine so I could explain it in the book. All of the code for the game is included with the book. The goal of the game is to eat the food pellets while avoiding the zombies while running around a maze. Every time you get eaten by a zombie, you can hear my six year old son saying “Oh No!”. Here’s the link to the game: http://apps.microsoft.com/webpdp/app/brain-eaters/e283c8d0-1fed-4b26-a8bf-464584c9de6d

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• checking for collision detection

  - by bill

  I am trying to create a game where you have a player and you can move right,left, and jump. kind of like mario but its not a side scroller. also i want to use 2d array to make a tile map. my big problem is that i dont understand how to check for collision. i spend about 2 week thinking about this and i came up with 2 solution but they both have problems. let say my map is: 0 = sky 1 = player 2 = ground 00000 10002 22022 Solution 1: move the '1'(player) and update the map less say player wants to move right, then x+=grid[x+1][y] this make the collision easy bc you can just check if if(grid[x][y+1] == 2){ //player is standing on top of ground } problem with this when u hit right key player will move (x*Titlewidth) to right. and as you can see the animation wont look smooth. Solution 2: move player and dont update map player_x += 2 this will make the animation more smoother bc i am just moving 2 pixels. problem1: i cant update map bc if player some times will be middle of int(2d array). but thats ok sinces its not a side scroller so updating the map is not a big deal. problem2: only way to check for collision is to use java intersection method. but then player have to be atleast 1 or 2 pixel in ground in order to check for collision. and as you can see that wont look good too. plz note this is my first collision game in java. so plz try to explain alot otherwise i wont understand it.

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• ecryptfs - decrypt and mount at boot with USB key

  - by Josh McGee

  I have a system running Ubuntu Server as a testbed for some services that I want to get familiar with. I decided to let the installation procedure set up encryption. I knew all along that I would have to decrypt it with the passphrase in order to get the system booted, but I assumed it wouldn't matter since it will only boot once or twice a month. However, my brother has informed me that he is a victim of power outages at the residence where this server is located. This means we have to explain to his girlfriend how to turn on the computer, attach a keyboard, connect a monitor (she just can't understand that she can type to the computer without a display, so whatever) and input the passphrase for us, while we are at work. I have arrived at the conclusion that I should just put together a USB key that can be plugged in before powering on the computer, to avoid all the trouble. Is this possible with ecryptfs? Is there a tutorial or simple list of instructions available so that I can knock this out and focus back on the stuff I care about? EDIT: I am aware that this is possible with LUKS and dm-crypt, but unfortunately the magical encryption that Ubuntu hands you during the installation is only ecryptfs so my question is specific to that.

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• Are copyright notices really required?

  - by Alasdair

  Ever since I made my first web page 13 years ago I have followed the pattern of showing a copyright notice in the footer of each page. Over the years the format of this notice has changed in the following way; Copyright © <NAME> yyyy. All rights are reserved. Copyright © <NAME> yyyy © yyyy <NAME> © <NAME> This has generally mirrored the format used by Google. However, I recently noticed that they no longer display a copyright notice on their home page nor have one in their source code/meta tags. I see they still display it on most (if not all) other pages. I understand that Google are very keen to keep the word count down on their homepage, which could be the reason for this sacrafice, but my question is more general and relates to all websites. Since I've always just done it out of habit, I'm hoping someone can explain if/when I a copyright notice is actually required to protect your content and rights. Also, when it is required, is there a format in which the notice must adhere to in order to be valid?

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• 2D platformers: why make the physics dependent on the framerate?

  - by Archagon

  "Super Meat Boy" is a difficult platformer that recently came out for PC, requiring exceptional control and pixel-perfect jumping. The physics code in the game is dependent on the framerate, which is locked to 60fps; this means that if your computer can't run the game at full speed, the physics will go insane, causing (among other things) your character to run slower and fall through the ground. Furthermore, if vsync is off, the game runs extremely fast. Could those experienced with 2D game programming help explain why the game was coded this way? Wouldn't a physics loop running at a constant rate be a better solution? (Actually, I think a physics loop is used for parts of the game, since some of the entities continue to move normally regardless of the framerate. Your character, on the other hand, runs exactly [fps/60] as fast.) What bothers me about this implementation is the loss of abstraction between the game engine and the graphics rendering, which depends on system-specific things like the monitor, graphics card, and CPU. If, for whatever reason, your computer can't handle vsync, or can't run the game at exactly 60fps, it'll break spectacularly. Why should the rendering step in any way influence the physics calculations? (Most games nowadays would either slow down the game or skip frames.) On the other hand, I understand that old-school platformers on the NES and SNES depended on a fixed framerate for much of their control and physics. Why is this, and would it be possible to create a patformer in that vein without having the framerate dependency? Is there necessarily a loss of precision if you separate the graphics rendering from the rest of the engine? Thank you, and sorry if the question was confusing.

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• Android threads trouble wrapping my head around design

  - by semajhan

  I am having trouble wrapping my head around game design. On the android platform, I have an activity and set its content view with a custom surface view. The custom surface view acts as my panel and I create instances of all classes and do all the drawing and calculation in there. Question: Should I instead create the instances of other classes in my activity? Now I create a custom thread class that handles the game loop. Question: How do I use this one class in all my activities? Or do I have to create a separate thread each time? In my previous game, I had multiple levels that had to create an instance of the thread class and in the thread class I had to set constructor methods for each separate level and in the loop use a switch statement to check which level it needs to render and update. Sorry if that sounds confusing. I just want to know if the method I am using is inefficient (which it probably is) and how to go about designing it the correct way. I have read many tutorials out there and I am still having lots of trouble with this particular topic. Maybe a link to a some tutorials that explain this? Thanks.

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• Whats the greatest most impressive programing feat you ever witnessed? [closed]

  - by David Reis

  Everyone knows of the old adage that the best programmers can be orders of magnitude better than the average. I've personally seen good code and programmers, but never something so absurd. So the questions is, what is the most impressive feat of programming you ever witnessed or heard of? You can define impressive by: The scope of the task at hand e.g. John single handedly developed the framework for his company, a work comparable in scope to what the other 200 employed were doing combined. Speed e.g. Stu programmed an entire real time multi-tasking app OS on an weekened including its own C compiler and shell command line tools Complexity e.g. Jane rearchitected our entire 10 millon LOC app to work in a cluster of servers. And she did it in an afternoon. Quality e.g. Charles's code had a rate of defects per LOC 100 times lesser than the company average. Furthermore he code was clean and understandable by all. Obviously, the more of these characteristics combined, and the more extreme each of them, the more impressive is the feat. So, let me have it. What's the most absurd feat you can recount? Please provide as much detail as possible and try to avoid urban legends or exaggerations. Post only what you can actually vouch for. Bonus questions: Was the herculean task a one-of, or did the individual regularly amazed people? How do you explain such impressive performance? How was the programmer recognized for such awesome work?

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• Cocos2d sprite's parent not reflecting true scale value

  - by Paul Renton

  I am encountering issues with determining a CCSprite's parent node's scale value. In my game I have a class that extends CCLayer and scales itself based on game triggers. Certain child sprites of this CCLayer have mathematical calculations that become inaccurate once I scale the parent CCLayer. For instance, I have a tank sprite that needs to determine its firing point within the parent node. Whenever I scale the layer and ask the layer for its scale values, they are accurate. However, when I poll the sprites contained within the layer for their parent's scale values, they always appear as one. // From within the sprite CCLOG(@"ChildSprite-> Parent's scale values are scaleX: %f, scaleY: %f", self.parent.scaleX, self.parent.scaleY); // Outputs 1.0,1.0 // From within the layer CCLOG(@"Layer-> ScaleX : %f, ScaleY: %f , SCALE: %f", self.scaleX, self.scaleY, self.scale); // Output is 0.80,0.80 Could anyone explain to me why this is the case? I don't understand why these values are different. Maybe I don't understand the inner design of Cocos2d fully. Any help is appreciated.

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• How to Change the Default Application for a File Type in Mac OS X

  - by The Geek

  If you’re a recent Mac OS X convert, you might be wondering how to force a particular file type to open in a different application than the default. No? Well, we’re going to explain it anyway. This is most useful when you’ve installed something like VLC and want to open your video files in that instead of the default, which is QuickTime Player. Latest Features How-To Geek ETC RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image Vintage Posters Showcase the History of Tech Advertising Google Cloud Print Extension Lets You Print Doc/PDF/Txt Files from Web Sites Hack a $10 Flashlight into an Ultra-bright Premium One Firefox Personas Arrive on Firefox Mobile Focus Booster Is a Sleek and Free Productivity Timer What is the Internet? From the Today Show January 1994 [Historical Video]

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• Share on: FB, Tweet, Digg, Linkedin, Delicious, My mother, ... it's just on fashion, or some real value?

  - by Marco Demaio

  Nowadays your site is not in fashion if you don't show at least a couple of share buttons like these: Is this just fashion, or do people actually get something good out of it? When I say "something good" I mostly mean something that you could measure, and not just the feeling that was good. Maybe I can better explain with an example: did you notice (in some way) that many people clicked on those links to share your page/s on those web 2.0 social sites? And in such a case on which social networks did you see they mostly share your pages? BTW I'm not talking about Google PR, i know all web 2.0 social sites use nofollow everywhere and even hidden links, so they are useless by themselves for PR. UPDATE: According to this video, Google's Alter Ego says that they now use in some way data from social sites in ranking. If this is true, it's obvious that the Share on button for FB, Tweet, etc are definitely of some values. But again my question is more about what you noticed in your real experience to be a direct benefit of adding those type of "Share On" links on your webisite? I.e. did you see more traffic coming in form FB, or some users who bought your products because of FB or Twitter? Or any other benefits? Thanks

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