A pneumatic actuator is a device that is capable of converting energy from a pressurized gas into motion. There are several different types of pneumatic actuators and each of them are designed in a slightly different way. Pneumatic actuators can be used to produce both rotary and linear motion and are usually powered by an electric compressor. While motion can be created through other means, such as a hydraulic or electric motor, pneumatic actuators are safer, cheaper, more reliable, and often provide more power. How Pneumatic Actuators Work Pneumatic actuators Read More

To change your tmnet password, visit the tmnet e-view Home Page. In the upper right side of the page, you will see a sign-in field (it’s orange and says “SIGN IN HERE”). Click on it and it will take you to the next page where you will enter your Username and Password. After this, click “LOG IN”. You will be directed to your account. Select “CHANGE PASSWORD”. Make sure you don’t forget your new password. However, if that happens, you will still be able to access your account. It is Read More

An excerpt from Hackers: Heroes of the Computer Revolution by Steven Levy: Access to computers – and anything which might teach you something about the way the world works – should be unlimited and total. Always yield to the Hands-On imperative. All information should be free. Mistrust Authority. Promote Decentralization. Hackers should be judged by their hacking, not bogus criteria such as degrees, age, race, or position. You can create art and beauty on a computer. Computers can change your life for the better.

A Root Certificate is a self-signed certificate or an unsigned public key certificate which forms an important part of the PKI (public key infrastructure). The most common commercial type of root certificates is based on the ISO X.509 standard. Such a certificate (a X.509 certificate) usually carries the digital signature of a certification authority (CA), which is the authorized body for validating the embedded data. In most enterprise-scale public key infrastructure systems, certificate chains prove or verify the identity of a party. When the certificate is issued by a certification Read More

Local and international networks require information to be constantly updated in order to properly route communications. Routing protocols were developed in order to help keep information flowing to the proper locations and to maintain network connectivity on both LAN and WAN. The Enhanced Interior Gateway Routing Protocol (EIGRP) is one of the most popular internal routing protocols used on medium to large businesses and education networks today. EIGRP Basics EIGRP was developed as a hybrid distance vector routing protocol that uses many of the same composite metrics as the Interior Read More

My Web Search is a malware toolbar distributed by Mindspark Interactive Network via their extensive network of spam sites, most of which are targeted towards young people.  This rapidly expanding list of sites includes Zwinky, Zwinky Cuties, GirlSense, Webfetti, Kazula, iWon, SmileyCentral, MyFunCards, CursorMania, and CardBoiled. These sites trick people, mainly children, into installing the My Web Search toolbar. The toolbar is spyware.  Mindspark admit as much in their EULA (End User License Agreement): “The My Web Search Toolbar, in the course of processing a given search query, sends a Read More

To delete your Myspace account, the first thing you need to do is log in to your account. Once your page loads, go to the top right hand corner of the screen and click “My Account.” Unlike Facebook, Myspace has it very clearly labelled where the delete account button is and that makes the process considerably easier than other social networking sites available on the web. From the My Account section, click Account. This will take you to a page where all the account decisions are made such as privacy Read More

Timekeeping devices usually contain or are connected to a machine that swings back and forth or oscillates at a constant rate to control the movement of hands or the rate of change of digits. Mechanical or analog clocks use balance wheels, pendulums and tuning forks as well as quartz crystals as their oscillating machinery for time measurement. Atomic clocks operate in much the same way – except that they use the frequency of the oscillation of atoms or molecules to measure time – thus the name 'atomic clocks'. How an Read More

As society is trying to slowly ween itself off of oil-dependency, the search for alternative fuels continues. One source of alternative "fuel" that already exists, however, is the electric motor. Electric motors are commonly found in vehicles, toys, and other electronic devices but there is still a campaign to improve the quality and efficiency of the electric motor through innovative contributions. Before the electric motor can be improved, though, people must learn how electric motors work. This article will explain what electric motors do and define the parts that make Read More

Opteron is a name for AMD's line of server-class CPUs. The Opteron line is designed to complete against the Intel Xeon server-class CPUs. Opteron processors are designed to execute 32-bit and 64-bit instuctions simultaneously. This enables them to directly address more than 4GB of RAM. Opteron CPUs feature an L1 cache with 64KB of RAM for data and 64KB of RAM for instructions. The 1024KB L2 cache in an Opteron CPU operates at the full speed of the CPU. These L1 and L2 cache numbers are per core. In a Read More