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• Installing isolated instance of MySQL on Windows using silent install with .msi

  - by Abram

  I'm trying to write an installer for an internal application we wrote. After it installs our application it then installs MySQL using the .msi installer in silent mode. I specify the install dir and data dir to that of a directory within my application's install directory, such as: msiexec /i @@MYSQL_INSTALLER_FILE@@ /qn INSTALLDIR="@@INSTALL_DIR@@\MySQL\" DATADIR="@@INSTALL_DIR@@\MySQL\" USERNAME="@@DB_USER@@" PASSWORD="@@DB_PASS@@" (the @@variable@@'s are replace by my installer routine using InstallJammer) Once installed, I use mysqld.exe to install a windows service with a custom service name and defaults file like so: mysqld.exe --install CustomMySQL --defaults-file="@@INSTALL_DIR@@\MySQL\my.ini" This works fine as long as there is not already another instance of MySQL installed. If there is it silently fails to install MySQL. Running the msi installer manually (double-click) shows an error that a previous version is already installed and just aborts. Is there a way to automate installing MySQL as an isolated instance, regardless of whether another version/instance is already installed?

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• VirtualBox VM settings between different CPUs (Processor/Acceleration)

  - by Level1Coder

  I have 2 PCs, 1 with a INTEL-Q9550 (YES-VT-x) and another with INTEL-E2160 (NO-VT-x) I will be using the Q9550 first to create a new VM, install XP and install stuff I'll need. Once this VM is golden, I plan on migrating this VM over to the E2160 machine. The question is, while creating/preparing this VM on the Q9550, should I disable all the following settings below to make sure the E2160 can start this VM without errors? Q9550 Default VM Settings ========================= PROCESSOR [X] Enable PAE/NX ACCELERATION [X] Enable VT-x/AMD-V [X] Enable Nested Paging

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• High frequency, kernel bypass vs tuning kernels?

  - by Keith

  I often hear tales about High Frequency shops using network cards which do kernel bypass. However, I also often hear about them using operating systems where they "tune" the kernel. If they are bypassing the kernel, do they need to tune the kernel? Is it a case of they do both because whilst the network packets will bypass the kernel due to the card, there is still all the other stuff going on which tuning the kernel would help? So in other words, they use both approaches, one is just to speed up network activity and the other makes the OS generally more responsive/faster? I ask because a friend of mine who works within this industry once said they don't really bother with kernel tuning anymore-because they use kernel bypass network cards? This didn't make too much sense as I thought you would always want a faster kernel for all the CPU-offloaded calculations.

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• bluetooth doesn't recognize mouse (and other devices)... sometimes

  - by Angelo

  I have a problem with bluetooth with Vista, running on my MacBook. It often doesn't recognize my wireless Magic Mouse. And I saw that it even doesn't seem to start as the pictogram in the task-bar isn't there most of the time I run Vista. But I'm only an Apple-nerd, so I don't know to much about this issue on Vista. When reinstalling Boothcamp or other updates, then once in a while bluetooth recognizes my own mouse (and other devices from some neighbours... so that implicates that the problem must be the bluetooth function in the first place, not my mouse.) Is there some update for the bluetooth application? Angelo

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• Time randomly changing itself, internet randomly dying

  - by Vee

  Operating System MS Windows 8 Enterprise 64-bit CPU Intel Core i7 2700K @ 3.50GHz 45 °C Sandy Bridge 32nm Technology RAM 8,00 GB Dual-Channel DDR3 @ 800MHz (8-8-8-24) Motherboard ASRock Z77 Extreme4-M (CPUSocket) 40 °C Graphics SMXL2270HD (1920x1080@60Hz) M2094D-PZ (1680x1050@60Hz) 896MB GeForce GTX 275 (CardExpert Technology) 57 °C Hard Drives 466GB FUJITSU MAXTOR STM3500320AS (SATA) 39 °C Optical Drives ASUS DRW-2014L1T Audio High Definition Audio Device Hello everyone, I installed Windows 8 RTM a few weeks ago. It's not my first time installing it, but it's the first time having two annoying problems: 1) Randomly, the system clock changes time all by itself - to fix it I have to open the time window and sync it with the internet. 2) Randomly, internet connection stops working - to fix I have to run troubleshooting. Windows will find a problem with IP on the "Ethernet" connection and fix it. 3) In rare occasions, my PC freezes and I need to restart it (a BSOD once happened, but after that only freezes) How can I permanently solve these problems? This is what I've already tried: Reset Virus scan Stop/reset the Windows Time service Disable/re-enable Windows Time automatic internet sync Change time from BIOS Change motherboard battery

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• Autoplay for USB drive keeps popping up

  - by Adam Haile

  I have a Seagate external 2TB USB drive that when I leave it plugged in, the Autoplay dialog asking what to do with the drive pops up about once every 30-60 minutes. No matter how many times I tell it to go away, it keeps coming back. I have tried multiple power supplies, USB cables, and all the USB ports on my machine...but it keeps doing the same thing. Also, this does not happen with the same drive on a different computer. Could this be some power or configuration setting that is causing this? I'm running Windows 7 x64 (the computer it works on is x86)

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• How do I search my mail and Office Communicator conversations from inside Outlook?

  - by Anthony Mastrean

  I am running Office Communicator 2007 R2 and Outlook 2010 on a Microsoft Exchange Server 2010. I am storing my conversation history from Communicator in Exchange in the default folder, "Conversation History". I'm using the conversation view in Outlook. And I have a Gmail-like macro to archive my conversations to an "Archive" folder. I want to search all my mail and conversations at once. By default, Outlook is searching in the current folder only. I tried creating a rule to move the conversations to my Archive folder, but couldn't configure it correctly.

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• Rotating wheel with touch (adding momentum and slowing down the initial rate it can be moved

  - by Lewis

  I have a wheel control in a game which is setup like so: - (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint location = [touch locationInView:[touch view]]; location = [[CCDirector sharedDirector] convertToGL:location]; if (CGRectContainsPoint(wheel.boundingBox, location)) { CGPoint firstLocation = [touch previousLocationInView:[touch view]]; CGPoint location = [touch locationInView:[touch view]]; CGPoint touchingPoint = [[CCDirector sharedDirector] convertToGL:location]; CGPoint firstTouchingPoint = [[CCDirector sharedDirector] convertToGL:firstLocation]; CGPoint firstVector = ccpSub(firstTouchingPoint, wheel.position); CGFloat firstRotateAngle = -ccpToAngle(firstVector); CGFloat previousTouch = CC_RADIANS_TO_DEGREES(firstRotateAngle); CGPoint vector = ccpSub(touchingPoint, wheel.position); CGFloat rotateAngle = -ccpToAngle(vector); CGFloat currentTouch = CC_RADIANS_TO_DEGREES(rotateAngle); wheelRotation += (currentTouch - previousTouch) * 0.6; //limit speed 0.6 } } Now once the user lets go of the wheel I want it to rotate back to where it was before but not without taking into account the momentum of the swipe the user has done. This is the bit I really can't get my head around. So if the swipe generates a lot of momentum then the wheel will carry on moving slightly in that direction until the overall force which pulls the wheel back to the starting position kicks in. Any ideas/code snippets?

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• Now open! FY15 Global Partner Kickoff Registration - June 25 & 26

  - by Richard Lefebvre

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Register today for OPN's FY15 Global Partner Kickoff! During this year's live webcast - Rich Geraffo, SVP, Worldwide Alliances & Channels, Oracle - will shed light around Oracle's vision, strategy and opportunities for the upcoming fiscal year. You'll also have a chance to hear from other Oracle executives, thought leaders and partners! EMEA Partner KickOff: June 25, 7:00am PDT / 3:00pm BST LAD Partner KickOff: June 25, 9:00am PDT / 1:00pm BDST NA Partner KickOff: June 25, 11:00am PDT JAPAN Partner KickOff: June 25, 6:00pm PDT / June 26, 9:00am JST APAC Partner KickOff: June 25, 8:00pm PDT / June 26, 11:00am SGT & 8:30am IST Once registered, watch + participate in the live webcast via the OPN homepage or OPN Facebook page on the day of the event. /* 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";}

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• Port forwarding on D-Link DIR-615 super-slow, useless

  - by Jaroslav Záruba

  Hello I have replaced my old router with DIR-615 from D-Link, and now the port forwarding is so slow it makes the router practically useless. Accessing the router itself (admin UI) is without issues, no delay whatsoever. But when I try to access a service on another computer in the network the requests take minutes and minutes. (E.g. I can see source of my GWT-app main page, but loading additional CSS and JS files takes years.) If anyone could recommend any further diagnostics I should do to figure out what is happening it would be great. Few notes: happens with more services (web-app on Tomcat, viewing directory index via Apache) it does not make a difference whether the service is hosted on wired or wireless PC accessing the service on a localhost works fine turning off firewall on the target PC does not make difference either (makes sense) when I replace this router with the old one (both 192.168.1.1) everything works fine I see nothing suspicious in the router's log I believe I have the latest firmware (4.11) DIR-615 sucks, it already died once completely Regards Jarda Z.

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• C# Threading Background Process - Programming - How to?

  - by Magic

  Hello...I have been given the horrible task of doing this. Launch the website Take a screenshot Fill in the form details, click on Next Take a screenshot ... ... ... Rinse. Repeat. Now, with various combinations, this comes up to 300 screenshots. And I have to do this for 4 different browsers. Chrome, Firefox, IE 6 and IE 7. I cannot use tools which will capture the screenshot and store them, such as, SnagIT. I need to take a screenshot, copy it to a Word Document and take the second screenshot and take it to a Word Document. I thought, I will write a tiny utility which will help me do this. Here is the requirement spec that I put up for it - An executable which once launched seats itself in the System Tray. While it is active, all instances of Key Press (Print Scrn), it should write the contents to a Word Document as defined (either a default path or a user defined one). Save the document periodically. Now, my question is - if I am going to develop this using C# (Winforms application), how do I go about doing this. I can do a fair bit of C# programming and I am willing to learn. But I am not able to locate the references for how to do a background process so that it runs in the background. And while it runs, it has to capture the Print Scrn command. Can you folks point me to the right material where I can learn this? Theoretical references should suffice. But if there are practical references, then nothing like it. Thanks!

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• Word 2007 "Out of Memory or Disk Space" Error on launch.

  - by Adam

  Word 2007 is installed on a Vista Home Premium machine and whenever it starts up it opens what appears to be a dynamic installer to do something and then throws up the "Out of Memory or Disk Space" error. Word 2007 never completes starting up. Reinstalling Word hasn't helped and if I can avoid reinstalling Windows until Windows 7 is released and get Word working in the mean time, that would be ideal. I've been looking around for a solution, once of which seemed to point to a problem with the user account. I created a second user on the machine and Word still had the same problem. The other solution that seems possible is a corrupted normal.dot/normal.dotm file. However, even in the location it should be, I can't seem to find it. Am I going in the right direction with this? Is there another solution I haven't come across that will fix this? If it is possible that renaming normal.dot/normal.dotm how can I find it?

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• Reocurring unpack failed on git repo improted from svn

  - by xavier

  I have a git repo created from svn with git-svn. Everything converted just fine, but from time to time, when I try to git push, I get: error: unpack failed: unpack-objects abnormal exit Other repos on our server (created from scratch or imported from svn) work fine. The solution is usually to unstage, commit and push files one by one, modify the one that fails (e.g. add a whitespace or something) and commit it once again. It's obviously very irritating, for big commits it's a productivity killer - and requires a lot of server pushes. I'd be grateful for any suggestions on where to look, I couldn't google anything up.

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• IRC News from #netbeans on FreeNode

  - by Geertjan

  I joined the #netbeans channel on FreeNode last week and the discussions there are really great. It's so cool to not have the endless back and forth of an e-mail exchange. Instead, you can hammer out a complete solution to a problem while chatting live in the channel. A case in point was yesterday, when someone named 'charmeleon' wanted to create a NetBeans Platform based application that includes the "image" module from the NetBeans IDE sources. That way, he'd have a starting point for his own image-oriented application, since he'd not only have the NetBeans Platform, but also the sources of the "image" module. Had we been communicating via e-mail, it would have taken weeks, at least, to come to a solution. Instead, we hashed it out together live, including some very specific problems that would have been hard to communicate about via e-mail. In the end, I made a movie showing exactly the scenario that charmeleon was interested in: And, right now, in the #netbeans channel, charmeleon said: "NetBeans RCP feels like cheating once you start getting over the hump." I'm sure the fact that the hump was handled within a few hours of chatting on irc is a big contributor to that impression.

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• How to deal this situation

  - by user198725878

  I would like to ask you some guidance here. Once I finished my graduation I join a company for Ruby On Rails. They trained me and put into project for ROR. I have spent 1 year of ROR development. I have done basic things in the given project. Then my company got a project for QT, learned and worked for nearly 7 months. Then my company put into me in iOS development. For the past 1 1/2 years, I have been working in the iOS development till date. Also my main worry is, changing the technology I am working makes me not having in depth knowledge on anything. I mean I can't make myself as expert in any language. What is your opinion? Now my company is going to put me into the cross-platform mobile application development. I am worried now, will this affect my growth path by leaving native development? I am ready to learn Android. As I left web development before 2 year ago, I am finding some odds with me. Should look for iOS job change now? Please let me know your advices.

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• nginx static file buffer

  - by Philip

  I have a nfs which several frontend-servers are connected to for making the files stored on the nfs available for http downloads. It looks like I have problems with the way apache is serving the files, there seems to be a very small buffer or no buffer at all which results in a lot disk seeks. I did some testing with loading the whole requested file into memory at once and serve it to the client from memory. With this technique I need less disk seeks for a download stream. Since I don't want to implement this by myself for production use I thought that I could maybe use nginx for that because the documentation says that it uses buffers for static file serving. Is it possible to increase the buffer size to a few mb, if so which config parameter do I have to change for this? Has anyone experience with large buffers for static file serving? Is there a better way to reduce disk seeks?

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• Random shut down? Asus N53J Laptopi

  - by Mr.Y

  My Laptop is pretty new and today it random shut down on its own. I was surfing the net and the computer shut down on its own (Like losing power, without any warning). It was the 2nd time, the first time was 3 weeks ago. Btw it happens during cold days. I remember one time I was unable to turn on my laptop at all. So I'm pretty sure it's not related to heat issue... could it be the laptop is too "cold"? My room temperature is around 17=18 degree on average :P edit -I use Windows 7 Professional. -I run memtest86 once and it passed. -I run my laptop WITHOUT battery all the time.

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• Using a random string to authenticate HMAC?

  - by mrwooster

  I am designing a simple webservice and want to use HMAC for authentication to the service. For the purpose of this question we have: a web service at example.com a secret key shared between a user and the server [K] a consumer ID which is known to the user and the server (but is not necessarily secret) [D] a message which we wish to send to the server [M] The standard HMAC implementation would involve using the secret key [K] and the message [M] to create the hash [H], but I am running into issues with this. The message [M] can be quite long and tends to be read from a file. I have found its very difficult to produce a correct hash consistently across multiple operating systems and programming languages because of hidden characters which make it into various file formats. This is of course bad implementation on the client side (100%), but I would like this webservice to be easily accessible and not have trouble with different file formats. I was thinking of an alternative, which would allow the use a short (5-10 char) random string [R] rather than the message for autentication, e.g. H = HMAC(K,R) The user then passes the random string to the server and the server checks the HMAC server side (using random string + shared secret). As far as I can see, this produces the following issues: There is no message integrity - this is ok message integrity is not important for this service A user could re-use the hash with a different message - I can see 2 ways around this Combine the random string with a timestamp so the hash is only valid for a set period of time Only allow each random string to be used once Since the client is in control of the random string, it is easier to look for collisions I should point out that the principle reason for authentication is to implement rate limiting on the API service. There is zero need for message integrity, and its not a big deal if someone can forge a single request (but it is if they can forge a very large number very quickly). I know that the correct answer is to make sure the message [M] is the same on all platforms/languages before hashing it. But, taking that out of the equation, is the above proposal an acceptable 2nd best?

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• what's a good way to share a value in multiple places in a word doc?

  - by jcollum

  Let's say I have a value: \\myServer\dir1\dir2\dir3. I'd like this value to appear in multiple places in an MSWord document. However I only want to write it down once. What's a good way to do this? Fields seem like the answer but I can't get it to work; maybe it's not the answer. I'd like to be able to do this without any macros; it adds too much complexity. I need something more like Excel -- write a cell value here, reference it there, change the original value and the reference gets updated too.

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• Ubuntu 12.04 won't shut down - stopping winbind daemon

  - by jan

  My Precise Pangolin sometimes won't shut down - the screen is black with text on it. Mostly last line says something like "stopping winbind deamon" (sometimes also virtualbox, which is above winbind daemon; edit: sometimes the last line says "running unattended updates") and it stays like this for about ten miutes. Then I usually hold the power button for 5s to shut it down. It's very unpredictable - sometimes the computer shuts down without problem and sometimes it hangs. I've tried many ways to shut it down: HW button, panel applet, sudo shutdown -h now, sudo poweroff, sudo halt, etc. even sudo reboot or restart from panel applet have this problem. Sometimes it works ok but every method named hung at least once on the same (damned) line. My specs: FUJITSU SIEMENS LIFEBOOK E8310, Intel Core2 Duo T7300 @ 2.00GHz, 3GB RAM, GPU: Mobile Intel(R) 965 Express Chipset Family Ubuntu 12.04.2 32bit, 3.5.0-41-generic kernel (but it did it on older kernels and 12.04.x systems too). Any ideas what should I try next? Thanks a lot! Jan

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• Unable to detect windows hard drive while running Ubuntu 12.04 from USB

  - by eapen jacob

  I am completely new to Ubuntu. I experimented with Ubuntu 12.04 by running it from a USB drive, in-order to recover files from my hard disc. History: My laptop is an IBM R60 running windows 7. Suddenly it gave me an error stating "error 2100 - Hard drive initialization error". I have read all the forums and most of them suggested that I remove and replace my HDD and that did not work. And one site suggested to try using Ubuntu to recover files. I booted my system from USB, and once Ubuntu came up, I choose "Try Ubuntu". It came up fine and I was able to surf ,and do other things, etc. I was unable to to access my files which are on the hard disc and "Attached Devices" is grayed out. 1- Is there any way to gain access to my hard disc to recover the files? How do I navigate to search for my files. 2- Is it just simply not possible if the hard disc themselves are not working? Is that why I`m unable to find the drives. I know its a very novice question, but hoping someone would help me out. Thank you, Eapen

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• The advantages & disadvantages to be had from using a Web Framework?

  - by JHarley1

  Hello, This question is focused on extracting the advantages and disadvantages of using Web based Frameworks: such as Cake PHP, Zend, jQuery, ASP.NET). This question is completely language agnostic. Let me start with the notion of "Standing on the shoulders of Giants". Advantages: Empowers Developers - by taking features that would have previously have taken 100's of lines of code and compressing them into one simple function call empowers developers to integrate more complex features into their Web Sites. Allow for Quicker development of applications - this is very relevant for people that need websites created in a very small window (has anyone any examples of this?) Lower Costs - allows programmers to pass cost savings onto the customer, a whole new range of customers generated that wanted a website but previously could not afford the higher development costs. Disadvantages: Lost Understanding - by relying on the features of a framework a developer is in danger of loosing understanding on how things work (underneath the hood). The configuration cliff - once you go further than the configuration of your framework your productivity drops right off, it can be difficult to implement features outside of a frameworks configuration. Developer tramlines - you (the developer) has to do things the way that the developer want you to do things. Security issues - giving people these tools to develop professional looking websites fast is a potential risk, people can quickly create professional looking websites for fraudulent companies. I wonder what people make of my points, and whether any body disagrees with them? Also if people have additional points I would be grateful. Many Thanks, J

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• OWA no longer accessing 1 backend exchange server

  - by Morchuboo

  We have IIS hosting OWA that is the web frontend to 3 backend exchange servers. Yesterday we got a lot of event 9791 warnings: "Cleanup of the DeliveredTo table for database 'Second Storage Group\Mailbox Store EUROPE 2' was pre-empted because the database engine's version store was growing too large. 0 entries were purged. At this point the server was crawling. Our Mail admin is currently away and not contactable so we rebooted the server. Everything seems ok when reading mail from outlook and evolution-mapi clients but OWA and active-sync connections cannot access. When logging into OWA, users whos mailboxes are not on this backend server are fine but users on this server can log into the OWA frontend but once submitting their credentials the page returns a 503 service unavailable error. We have since rebstarted the affected exchange server and the IIS server as well as iisreset /noforce but problem persists. Can anyone suggest what we should look at...

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• How to Use Vim-Style Keyboard Shortcuts for OS X Tab Navigation

  - by The Geek

  After switching to OS X when I got a new MacBook Air, one of the first things I needed to duplicate was my extremely customized AutoHotkey setup — the most important of which is using the J and K keys to navigate throughout tabbed windows easily. Yeah, I’m a Vim user. I’ve never been a fan of having to use CTRL + TAB to switch from one tab to the next — to start with, you have to move your hands from the home row, and it’s awkward, and why should I have to do that just because somebody decided that keyboard shortcut before tabs became popular? If you think about it, if tabbed browsers were popular back when keyboard shortcuts were being invented, they would have definitely reserved some of the good shortcuts for switching tabs. On Windows, I’ve always used an AutoHotkey script to make things the way I wanted it:  ALT + J and ALT + K for selecting previous and next tabs. Once you get used to it, it’s extremely awesome, and so much faster than using CTRL + TAB. Of course, I also hacked CTRL + T and CTRL + W into ALT + T and ALT + W so I could open new tabs and close them without moving my hands from the home row. Over on OS X, it turns out that it’s incredibly simple and easy to use CMD + J and CMD + K for next/previous tab navigation, and it works in most applications that support tabs, like Terminal, Safari, or Google Chrome.    

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• Impact Earth Lets You Simulate Asteroid Impacts

  - by Jason Fitzpatrick

  If you’re looking for a little morbid simulation to cap off your Friday afternoon, this interactive asteroid impact simulator makes it easy to the results of asteroid impacts big and small. The simulator is the result of a collaboration between Purdue University and the Imperial College of London. You can adjust the size, density, impact angle, and impact velocity of the asteroid as well as change the target from water to land. The only feature missing is the ability to select a specific location as the point of impact (if you want to know what a direct strike to Paris would yield, for example, you’ll have to do your own layering). Once you plug all that information in, you’re treated to a little 3D animation as the simulator crunches the numbers. After it finishes you’ll see a breakdown of a variety of effects including the size of the crater, the energy of the impact, seismic effects, and more. Hit up the link below to take it for a spin. Impact Earth [via Boing Boing] How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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