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  • Could we build a mega-processor out of superconductors?

    - by Carson Myers
    A superconductor, once cooled below a critical temperature, loses all of its electrical resistance and therefore becomes 100% efficient. This means that when a current flows through a superconductor, none of the energy is lost to heat or light. Theoretically, could we build a processor out of superconductive materials, that could effectively run at, oh I don't know, say, 300ghz? or 5,000ghz? Since a superconductive circuit is 100% efficient, this means that once supplied with electricity, the source of power could be completely removed from the circuit and the current would continue to flow forever. So if we made all the components inside a computer out of superconductive materials, could we get away with only supplying power to the peripherals and save a-whole-lot on energy, while dramatically increasing computing speed? Might this be one of the next big breakthroughs in computing? What do you think?

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  • Apache rewrite rules not causes a download dialog of the PHP file

    - by Shaihi
    I have Apache 2.2.17 using the WAMPServer 2.1 installation. I am debugging a website fully local on my computer. I have the following rule in the .htaccess: # Use PHP5 Single php.ini as default AddHandler application/x-httpd-php5s .php Options +FollowSymlinks RewriteEngine on Rewritebase / RewriteRule ^bella/(.*)/(.*)$ beauty.php?beauty_id=$1 [L] RewriteRule ^(argentina|brasil|chile|colombia|espana|mexico|rep_dominicana|uruguay|venezuela|peru|bolivia|cuba|ecuador|panama|paraguay|puerto_rico)/$ country.php?name=$1 [L] RewriteRule ^(argentina|brasil|chile|colombia|espana|mexico|rep_dominicana|uruguay|venezuela|peru|bolivia|cuba|ecuador|panama|paraguay|puerto_rico)/(hi5|facebook|twitter|orkut)/$ socialnetw.php?country=$1&category=$2 [L] The problem When I enable this rule and try to access http://localhost/index.php using FF I get a download dialog for the PHP file. If I comment the Rewrite* part in the .htaccess file then the index.php file loads fine, but navigation in the page is broken...

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  • Downloads on Vista Home Premium start off fast but slow down to 0 Kb/s and hang

    - by user66265
    I have Windows Vista Home Premium on my computer and everytime I go to download something, it starts out at about 1.5 Mb/s and stays there for about 3 seconds, then it slows down to 800 Kb/s and continues to drop until it gets down to 0 Kb/s and hangs. I've tried just about everything I can find such as uninstalling all firewalls/antivirus, doing the netsh rss,autotune, and chimney disable, and updating everything but it still continues to happen. I'd prefer not to reinstall but if I have to then I have to... EDIT: Figured it out, the router needed a firmware update

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  • How to keep the function key locked on Lenovo E431?

    - by Bob
    For the Lenovo e431, how do you keep the function key locked. Right now, the default is when you press F1-F12, he multimedia controls are active. To get to the standard F1-F12, you have to hold down Fn+the function key. This used to available in bios, but for this laptop model, it no longer is available. You can press Fn+esc, and it locks it for that session, but when the computer reboots, this is reset back to the default. Is there a way so that the default is not the multimedia function keys, but just the standard, legacy function keys? Thanks.

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  • Semi-random clicking sound from Macbook Pro

    - by Justin Love
    There is an occasional click sound coming from my Macbook Pro (17", 2.2 Ghz Core 2 Duo) I upgraded to Snow Leopard recently, but the computer was also in for service about week before that, so I can't be certain the OS upgrade is related. The sound has no set interval and frequency varies from rare to every few seconds. I can alleviate the sound by turning up the fan speed with smcFanControl. Turning the right fan up about half way seems to be sufficient. Unfortunately, turning up the left fan also causes the right to turn on, because the sound seems to be slightly more to the left. The cause seems to be either a fan or heat-related.

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  • how to print labels from UPS printer on UPS website

    - by paynes_bay
    I have several computers, in my office, that have UPS printers attached to them. On most of these computers if you go to ups.com, login, and print a shipping label out, it prints out just fine. The website somehow selects the appropriate printer and prints to it. It doesn't present a prompt, asking you to select the printer, the number of pages, etc - it just prints it. Only problem: there's one computer on which it's not doing this and I don't know why. I can see the printer in Printers and Faxes and can print out test pages from the Properties tab, so the printer clearly works - it just isn't printing out from UPS's website. Any ideas?

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  • proxy/vpn by dns entry

    - by rcourtna
    I've been using a service by unblock-us.com, which provides a proxy to Canadians/others allowing access to services that are locked down to only US ip addresses. This is easy enough to achieve by setting up a reverse proxy (eg: squid) on a US-hosted server, and then configuring your browser or OS to use that proxy. However, there is something that unblock-us does that I'm not sure how to duplicate. Rather than configuring your OS to use them as a proxy, you can simply change the DNS Server settings on your router to point to their addresses. Any requests to services they support are automatically proxied. The advantage to this is that you don't have to set up every computer in your house, and it "just works" with clients like ps3, xbox, android, etc. Disadvantage is you really don't have control over what gets proxied, as well as there are privacy concerns I suppose. How can I achieve this same functionality on my own us-based slice?

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  • Can't SSH to remote server,how to avoid this

    - by snow8261
    From time to time,we suffer problems like we can not remote connect to our server via ssh.So we have to send someone on site to restart the computer for this problem.It causes a lot of pain.The situation is we have to remote connect to our server,which are very important like database server and application server and etc.We have met problems like ssh hang,like command ssh [email protected] with no response. when using ssh -v debug mode, it says : debug1: Connection established. debug1: identity file /.ssh/identity type -1 debug1: identity file /.ssh/id_rsa type -1 debug1: identity file /.ssh/id_dsa type -1 debug1: loaded 3 keys and we met this situation many times with no clue how to solve it.Is any log which can identify this problem? or Is there a tool for this problem? help needed!Any idea are appreciated.

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  • Unable to sync the Zune software with my HTC HD7

    - by Varpi
    I have a brand new HTC HD7 with Windows Phone 7, with no Software installed. I am running on Windows 7 64 bit. Whenever I try to sync my Mobile Device with Zune- I get this message: Can't connect to your phone. Disconnect it, restart it, then try connecting again I've downloaded latest Zune software and all updates. I don't have any certificates on my personal certificates. My phone is listed under Portable devices in Device manager (It shows as phone with driver version 4.7.965.0). I've restarted both my computer and the mobile device few times. I tried unlocking the device during the Zune sync Any ideas as to how I can sync my phone ?

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  • Unable to copy files previously extracted from archives created on a Mac, even after claiming ownership

    - by Maxim Zaslavsky
    I reinstalled Windows on my computer today, and backed up my music to a USB drive. Now, I'm trying to copy the files onto my fresh Windows partition, but I'm unable to copy files that I obtained within my previous Windows installation from zip archives created on Macs. When I try to copy those previously-extracted files, I get an error saying that I need permission from S-1-5-21-...-1000 (a bizarre long ID). The first thing I tried was to take ownership of the files by setting my new user account as the owner, but that resulted in errors saying that I need permission from myself! Some Googling suggested adding antivirus suggestions, so I excluded the relevant folders from Microsoft Security Essentials, but the issue persists. For what it's worth, it seems that some program (so far I've only installed Chrome, Microsoft Security Essentials, and the latest Windows updates) created an empty folder named 601c8c7f0e0c03f725 at the root of my external USB hard drive. What gives?

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  • "Show In Finder" won't open a new finder window

    - by Gavin Miller
    The "Show In Finder" action isn't working on Mac OS X Mountain Lion. The problem has just started to occur all the time, before it was a bit sporadic, but now it happens all the time. Things that don't work: In the chrome Downloads page clicking any of the "Show in Finder" links. Right clicking a file in XCode and choosing "Show in Finder" Things that work: open . in terminal command-n after command tabbing to Finder. Things I've tried to fix the issue: Opt - Right Click finder in the dock and relauching Restarting my computer Anybody ever experienced this issue?

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  • How share internet connection between two laptops

    - by danielgratzz
    I have what appears to be a cable modem plugged into the wall with only ONE ethernet port on it. Therefore i can only connect one computer to it. Also, it has no wireless capability. I have to dialup the connection and enter a username and password on my laptop. But how can i share this internet connection between two laptops running windows 7 ultimate? I have spare ethernet cables if that would help... Please help, thank You.

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  • How do i use a USB wifi device properly?

    - by acidzombie24
    I'll just say a few random things One usb wifi device i notice only worked when it plugged into my usb hub Another one worked but couldnt get full speed. It came with an extention cord and when i had it a few feet away i was able to (usually) get full speed I had a wifi card in a tower in the past and just about all laptops have it built in How do i use a USB wifi adapter properly? The first device didnt come with an extention cord and made no mention of bringing it away from the computer. When someone else tested the device he said he was getting full speed while it was plugged into his tower so i was pretty surpised. How do i use USB wifi devices properly?

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  • Accessing localhost on my iPhone

    - by mohabitar
    I've found similarly titled questions, but none that directly address my issue. I'm running Google App Engine server on my Macbook, and it was configured to use port 8080 on localhost. And so anytime I wanted to run my site, I'd just go to localhost:8080/saveuser and everything worked fine. Now, I want to access this same site on my iPhone. I can't just do localhost on my iPhone, so I set up Web Sharing on my mac, and it's set up to http://192.168.1.106/~mohabitar. I can access this from my iPhone, but it only displays a directory of my files, and doesn't actually run the Python script. The only way my Python scripts actually run is if I do localhost:8080 on my computer. What can I do about this?

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  • HDD vanished after wakeup from standby

    - by Sam
    In my computer I got two hard drives: One 80GB Intel X25 Postville SSD for the system and a 1,5TB Sata HDD for data. When I put the system into standby, and wake it up again, roundabout 50% of the time the 1,5TB HDD is not found. It just vanished from the system (wreaking havok to all programs running which had open files on it). Even going into the system management and refreshing the drives does not find the lost HDD. There are no messages about this in the event log. After a warm reboot the hdd is found again, just like it should. The system is a Shuttle SP35P2 Pro with 8GB Ram and DualCore CPU, OS is Windows 7 Ultimate. I even set up the OS anew, didn't help. Any ideas what might cause this? How to debug, or maybe even fix it?

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  • Unleash AutoVue on Your Unmanaged Data

    - by [email protected]
    Over the years, I've spoken to hundreds of customers who use AutoVue to collaborate on their "managed" data stored in content management systems, product lifecycle management systems, etc. via our many integrations. Through these conversations I've also learned a harsh reality - we will never fully move away from unmanaged data (desktops, file servers, emails, etc). If you use AutoVue today you already know that even if your primary use is viewing content stored in a content management system, you can still open files stored locally on your computer. But did you know that AutoVue actually has - built-in - a great solution for viewing, printing and redlining your data stored on file servers? Using the 'Server protocol' you can point AutoVue directly to a top-level location on any networked file server and provide your users with a link or shortcut to access an interface similar to the sample page shown below. Many customers link to pages just like this one from their internal company intranets. Through this webpage, users can easily search and browse through file server data with a 'click-and-view' interface to find the specific image, document, drawing or model they're looking for. Any markups created on a document will be accessible to everyone else viewing that document and of course real-time collaboration is supported as well. Customers on maintenance can consult the AutoVue Admin guide or My Oracle Support Doc ID 753018.1 for an introduction to the server protocol. Contact your local AutoVue Solutions Consultant for help setting up the sample shown above.

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  • Get hard drive to spin up upon mouse movement

    - by John
    My storage drive which does not contain the OS stops spinning after a few minutes. This is annoying and totally defeats the purpose of having a fast access drive. The drive will NOT spin up when I use the mouse! It only spins up when accessed. However, I don't want it to spin all the time. I would like it to spin up anytime there is mouse activity so it is at the ready when I am using the computer, but go to sleep during inactivity. Can anyone think of a trick to get a secondary drive to spin up on a mouse movement?

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  • ASP.NET Connections Spring 2012 Talks and Code

    - by Stephen.Walther
    Thank you everyone who attended my ASP.NET Connections talks last week in Las Vegas. I’ve attached the slides and code for the three talks that I delivered:   Using jQuery to interact with the Server through Ajax – In this talk, I discuss the different ways to communicate information between browser and server using Ajax. I explain the difference between the different types of Ajax calls that you can make with jQuery. I also discuss the differences between the JavaScriptSerializer, the DataContractJsonSerializer, and the JSON.NET serializer.   ASP.NET Validation In-Depth – In this talk, I distinguish between View Model Validation and Domain Model Validation. I demonstrate how you can use the validation attributes (including the new .NET 4.5 validation attributes), the jQuery Validation library, and the HTML5 input validation attributes to perform View Model Validation. I then demonstrate how you can use the IValidatableObject interface with the Entity Framework to perform Domain Model Validation.   Using the MVVM Pattern with JavaScript Views – In this talk, I discuss how you can create single page applications (SPA) by taking advantage of the open-source KnockoutJS library and the ASP.NET Web API.   Be warned that the sample code is contained in Visual Studio 11 Beta projects. If you don’t have this version of Visual Studio, then you will need to open the code samples in Notepad. Also, I apologize for getting the code for these talks posted so slowly. I’ve been down with a nasty case of the flu for the past week and haven’t been able to get to a computer.

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  • Nvidia Ion HDMI output problems with Acer Revo

    - by Techfeeler
    I bought an Acer Revo. First I connected it to my Sony TV via HDMI output. For a few days it worked very well. Then one day when switching on the computer, it boots and the TV screen turns black and the TV displays the error message "no input signal". I connected the Revo to a Samsung LED TV, and it did the same. What do you guys think the problem is? How do I tackle this issue? Any help is deeply appreciated.

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  • Removing a custom vim configuration

    - by Hovercouch
    I've added a lot of small mappings to my vimrc that help me work, like noremap H ^ and inoremap jk <esc>. It's diverged enough from vanilla vim that other people at work have trouble coding on my computer. This has been making it harder to pair program with people and get help reviewing code. What I'd like is a way to quickly toggle on/off all of my custom mappings and switch between my vim config and a more 'conventional' one (like relative vs absolute numbering). What would be the best way to do this?

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  • Linux: How to delay hddtemp service start at boot until all hdd are visible?

    - by Atis
    I live in a hot and humid environment, therefore I monitor the hdd temperature using hddtemp and gkrellm. There is an LSI9211 8i sata/sas controller in my computer. I have drives connected to both my motherboard and the LSI. hddtemp monitors only the drives directly connected to my motherboard after booting the system, therefore gkrellm displays the temperature of those drvies only. Logging in and restarting hddtemp before starting gkrellm fixes my issue, i.e. drives connected to the LSI controller are also visible. It seems that the drives connected to the LSI controller become visible only after hddtemp is started in the boot sequence. I think delaying it would help. How can I delay the starting of hddtemp till all drives are visible? I prefer a way to check if drives are visible to the delay of a specific amount of seconds.

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  • CPU installation

    - by David Oneill
    I'm in the midst of building a computer (this is my first time). When I first put the heatsink on the CPU, I was a little off center. Some of the thermal compound came off, so when I re-centered it, it isn't completely evenly distributed. So here's my question: how picky are CPUs in terms of how evenly the thermal compound is? Should I take it apart, clean it, and apply a new layer of compound? Or can I just keep an eye on the CPU temperature? (I'm not overclocking or anything, if that matters)

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  • UDP packets to IP addresses other than specific ones not arriving and not shown in Wireshark

    - by Max
    I'm writing a service using UDP, but I can't manage to reply to the client. When sending to the client via the DHCP-assigned IP (192.168.1.143) Wireshark shows no sent packets. The server receives and Wireshark shows any packet sent by the client (broadcasted). If I send to a random, unassigned IP Wireshark doesn't show it. I thought the NIC would happily send it, since there is a router in the way - shouldn't Wireshark show it, even though it cannot possibly be received by a remote endpoint? If I send to either the router IP or another (specific, there is only one other) computer, the packet is shown in Wireshark. I am running Windows 7, the firewall is turned off using the control panel. Does the fact that wireshark doesn't show these packets mean that they aren't sent? What reason could there be for showing packets to one IP, but not another, on the same subnet?

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  • Permission denied when copying on a fileshare in Finder, but copying via command line works

    - by smokris
    I'm trying to copy files on a SMB fileshare. When I attempt to copy the files in Finder, I get the following error: The operation can’t be completed because you don’t have permission to access some of the items. Copying via Terminal.app (using a simple cp command) works just fine. Permissions on the folders (as seen from the computer attached to the fileshare) are as follows: Source: dr-xr-x--- 2 smokris staff 16384 Oct 13 10:55 . dr-xr-x---@ 61 smokris staff 16384 Oct 13 10:56 .. -r--r----- 1 smokris staff 53970 Oct 13 10:55 ._IMG_3823.JPG -r--r-----@ 1 smokris staff 3135600 Oct 13 10:55 IMG_3823.JPG Destination: drwxrwx--- 2 smokris staff 16384 Apr 9 10:17 . drwxrwx--- 3 smokris staff 16384 Apr 9 10:15 .. Any ideas?

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  • How to simulate slow internet connection

    - by V-Light
    I currently deploy with GAE (google app engine) and I try to implement some AJAX validation. So I got a couple text-fields and "spinners" (ajax loaders) which should be displayed when an AJAX request is sent. But I deploy on my local computer (localhost), so the GAE SDK reacts very fast on any request. It takes about 50-70 ms(miliseconds) to perform the whole ajax request, which is far far away from the real. Is there a way to somehow simulate slow Internet connection? I just want to see how my "spinners" work. I want to test some ajax setting (jquery) about timeouts, errors and so on... Any ideas ?

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