Plasma screens might seem like new technology because of their heightened popularity in recent years. However, plasma screens were first created in 1964, and have been in use ever since. The basic idea behind that of a plasma display is to illuminate tiny colored fluorescent lights to form images. Each pixel is made up of three fluorescent lights — a red light, a green light and a blue light. Just like a CRT television, the plasma display varies the intensities of the different lights to produce a full range of Read More

Soil, together with water and air, is one of the three key natural reserves. Without soil, there would not be any form of natural vegetation or life. Soil comprises of layers of varying depth and form. The ratio of each of these components is vital in establishing the type of soil present in an area. Other factors such as climatic conditions, nearby topography, human activities and so on also determine the soil type. The basic types of soil layers are as follows: Organic matter This layer is the refuse layer Read More

Total Harmonic Distortion (THD) is a measured difference in audio levels between the input audio signal’s harmonics and the harmonics of the output audio signal of an amplifier or other audio device. Output Distortion Level As the signal passes through an amplifier it is always somewhat distorted at its output. The waveform at the input will not perfectly match the level at the output. How great the distortion will be depends on the amplifier’s quality and specifications, but it is usually not noticeable to the human ear. If it is, Read More

Yahoo Mail is the web-based mail client provided by the popular search engine, Yahoo. Yahoo Mail organizes the email of all Yahoo users and guarantees that users have a way to receive notifications from Yahoo concerning their services and activities. Yahoo Mail is similar to Gmail and Windows Live Mail and is compatible with a number of websites and email clients, including Windows Outlook.   What Is Outlook Windows Outlook is a desktop-based email client for Windows that is included in Windows Office and allows users to manage email accounts Read More

Desktop publishing takes WYSIWYG page layout software and combines it with a personal computer to allow the user to self-publish their own publications whether for high amounts of publishing or for small, mini-publications. However, desktop publishing doesn't just mean page layout skills needed to make a book; it can also be used to describe the design and creation of point of sale displays, outside signs and other promotional items. Types of Pages in Desktop Publishing The most important aspect to consider when desktop publishing is the type of page that Read More

In the world of ice hockey and ice skating, there is nothing more important than maintenance of the ice. Failure to properly take care of an ice rink could result in broken bones, property damage, or the loss of a game. In order to efficiently care for an ice rink, ice rink owners spend large sums of money for a machine known as a Zamboni that is able to shave the ice, collect the ice shavings, wash the ice, and resurface the ice with a fresh layer of water. This Read More

Portable radios are limited in the power at which they can transmit, usually somewhere between .5 watts and 5 watts. A very rough rule of thumb is that one watt equals one mile of range over flat and open terrain. Buildings and mountains will, of course, greatly modify effective range. When two radios communicate directly with each other, this is known as Simplex. To achieve greater range, a radio repeater is often utilized. A radio repeater is a base station radio with a large antenna. Each portable radio communicates with Read More

Windows XP introduced the limiting of the number of possible TCP connection attempts to ten per second. This is likely to affect server and P2P programs that constantly need to open as many outbound connections as they can at the same time. The Limitations Many users believe that they should have the option to disable or change this setting, making this new implementation a cause for concern. If a P2P or some other network program tries to connect to fifty sites at once, the maximum it will be able to Read More

MODx is a PHP driven content management system/framework (CMS/CMF) that is designed to help developers create and maintain sites without much programming. The CMF also includes an extendable applied programming interface to allow power users to extend the framework to fit individual or company needs. It does not have the steep learning curve that other CMSs on the Internet do. Many MODx CMSF users face the problem of getting the MODx parse error after performing a significant site upgrade/update or database modification. What is the MODx Parse Error? The MODx Read More

Yahoo Web Messenger is an instant messaging service, provided by Yahoo, which is integrated into Yahoo Mail and does not require users to download any software. Yahoo Web Messenger is the same software as the popular Yahoo Messenger, but is provided via the user’s browser instead of his/her desktop. Yahoo Web Messenger allows users to communicate with Yahoo, Facebook, and Windows Live contacts and requires users to run Internet Explorer 8 or later, Mozilla Firefox, Google Chrome, or Safari.   How Yahoo Web Messenger Works Yahoo Web Messenger is available Read More