Inserting an Element To insert an element in the list, the first task is to allocate memory for a new node, assign the element to be inserted to the info field of the node, and then the new node is placed at the appropriate position by adjusting appropriate pointers. Insertion in the list can take place at the following positions: At the beginning of the list At the end of the list After a given element Before a given element Insertion at the Beginning of the List First, test whether Read More

Wind is a direct effect of air trying to get from high pressure to low pressure. Because there is such high pressure, it is natural for air (or anything for that matter) to move into an area of lower pressure. Water does it. If it is in a cup and then a straw is connected to the side of the cup and attached to another, the water goes because there is space for it; less pressure. However, because the Earth is spinning, that flowing air can't just go from high Read More

A signal is a message that can be sent to a running process. Programs, users, or administrators can initiate signals. For example, the proper method of telling the Internet Daemon (inetd) to re-read its configuration file is to send it a SIGHUP signal. For example, if the current process ID (PID) of inetd is 4140, type: kill -SIGHUP 4140 Another common use of signals is to stop a running process. To stop the inetd process completely, use this command: kill 4140 By default, the kill command sends the SIGTERM signal. Read More

Firefox Add-Ons are additional features and tool sets that are available for use in the popular web browser, Mozilla Firefox. Firefox Add-Ons include Firefox Extensions, Firefox Plugins, and Firefox Themes. Together, these three Add-Ons allow users to customize virtually everything in Mozilla Firefox, from text editing to multimedia support and appearance. Firefox Add-Ons may be used for a wide variety of purposes and are essentially what distinguishes Mozilla Firefox from other web browsers such as Internet Explorer and Google Chrome.   How to Find Firefox Add-Ons Firefox Add-Ons can be Read More

The crystal radio is a rudimentary radio receiver that can be made from a few easy-to-obtain and inexpensive parts. It is unique for this type of radio does not require a battery pack, has no moving parts, and can be built using ordinary household materials, yet it actually works. The only power it receives comes from the radio signals. Radio Broadcasting Basics It should not be surprising that crystal radios work. The basic principles of radio broadcasting make radio crystal operations more than possible. First, the function of a radio Read More

A generator (electrical) is a device that converts mechanical or chemical energy into electrical energy. Generators often use motors, turbines, engines, cranks, pistons, or other sources of mechanical energy. Likewise, generators may use chemicals or other materials that produce electricity when mixed or ignited. Generators do not produce electricity itself, but simply produce a flow of electricity by forcing electrons from an external source to flow through an electrical circuit. Generators are used for a wide variety of purposes and are available in many different forms. How a Generator Works Read More

The Internet, or World Wide Web, was first created to help connect geographically distant laboratories and research centers conducting government research. Since 1994, technology has evolved to the point that it now connects individuals and networks run by private companies, individuals, industry, government, and other organizations world-wide. Unlike other communications mediums, the Internet has become the source of information and sharing for anyone who finds a way to connect to the Web. A common question that arises amongst computer and mobile user is how does the Internet work? Understanding Internet Read More

The rock cycle is an essential geological model that depicts the unique changes that rock undergoes during a set time period. The three major rock types are sedimentary, metamorphic and igneous. Rocks are formed and obliterated in cycles. The rock cycle depicts the formation, destruction and restoration of rocks. These changes take place due to atmospheric changes or changes in the earth’s core structure itself. The first suggestion of the rock cycle was conceptualized by the eighteenth century geologist, James Hutton; he is considered as the father of modern geology. Read More

Creating a newspaper can be a personal project for a circle of friends and family or a serious project that is meant for publication, distribution, or sale. Whatever the purpose, creating a professional looking newspaper is something for which most newspaper creators strive. Prospective newspaper creators do not need publishing software to pull it off and can actually make a great newspaper with Microsoft Word. The process of creating a generic newspaper style in Microsoft Word that can then be customized is generally simple and may be accomplished with the Read More

Musicam (MPEG-1 Audio Layer II) is a lossy audio format that was created alongside MPEG-1 Audio Layer I and Audio Layer III. While MPEG-1 Audio Layer III (MP3) is a very popular audio format that is used for PCs, gaming, and stereo applications, Musicam is still the primary audio format used in audio broadcasting systems such as radio stations and recording studios. Although the original Musicam format is no longer in use, the MPEG-1 Audio Layer II (MP2 format) is still widely accepted as the most popular audio broadcasting codec Read More