Cavitation happens when water moves at extremely high speed around an obstruction in its normal flow. This causes the water pressure around the propeller to drop, creating air bubbles which dissolve after a few moments and causing water to rush in on the empty space created previously by the bubbles then crashing against the obstruction. Cavitation is considered a nuisance because it creates noise which can pinpoint the location of ships and submarines. The principles of cavitation have become the foundation for developing a whole new class of weapons. Understanding Read More

In order to protect computers, servers, networks, and files, millions of individuals and organizations all over the world use security software of some kind. Security software can come in many different forms but they all have the same goal in mind: to protect the user's information. The five main types of security software are firewall, antivirus, antispyware, end-point security, and network. This article will explain each of these types of security software and list several examples of such. Firewall A firewall is exactly what it sounds like: a wall that Read More

uTorrent is a torrent download software that allows users to download content from other users that have been referenced within a torrent. A torrent is effectively a document that is able to keep track of content as well as all other users who are downloading and uploading that content. uTorrent then uses the information found in the torrent to download content from other users. uTorrent is a 300 KB program that includes its own uninstaller and features many options for controlling how uTorrent accesses torrents and how operations are carried Read More

Auditing Overview Auditing enables you to determine which activities are occurring on your system and allows you to track access to objects, files and folders; and modifications made to the objects, files and folders. Auditing also enables you to collect information associated with resource access and usage on your system by allowing you to audit system logon, file access, and object access. Security auditing events are written to the Security log of the system and can be accessed from the Event Viewer tool. Because event logs grow over time and Read More

People often need to transfer files from one computer to another but sometimes it is necessary to clone the contents of an entire hard drive onto another computer. It may seem like a large task, but there are many methods that you can use to accomplish this goal. In this article, we will go over a number of methods and programs that allow you to copy an entire hard drive onto another computer, server, or device. Automatic Backup Automatic backup programs are great for cloning the contents of your hard Read More

The “Server Not Found” error message (“404” error) indicates that the web browser (or client) can communicate with the web server, but cannot find the requested information. An error similar to the “404” is the “Server Not Found” error. This error results from the desired destination server not being able to establish a connection with the requesting client, typically due to a domain name server problem. What Does the 404 Error Mean? The 404 error is generated in order to provide a “readable” error message to inform users that the Read More

Charter Communications is the third largest cable TV provider in the United States. Besides cable TV, Charter Communications also offers high-speed Internet and a variety of phone services. While Charter’s service is not available in all areas within the United States, the company does have over 5 million customers in 29 states. When you sign up for Charter Communication’s high speed Internet service which is categorized as cable broadband, you will either receive or be able to create a user name. This user name not only gives you access to Read More

Just like every other technology, video home system (VHS) recording tapes are being affected by technological change. Just as consumers become used to one form of home technology, a new and better technology comes along. Unfortunately, consumers have already recorded many precious moments on their VHS tapes and are increasingly finding that they do not have the same quality as the new technologies being offered today. In some cases, the tapes themselves are beginning to deteriorate. Generally, this deterioration takes place because of incorrect storage, but overall, it usually happens Read More

Connection Manager Overview If you want to configure clients to connect to a RRAS server, you can use the Connection Manager to do this. Using the network connection properties to configure clients to connect to a RRAS server works well in situations where you need to configure a small number of clients, and when the default security settings are being utilized. Connection Manager is a Windows application and client dialer included in Windows 2000, Windows XP Professional, and Windows Server 2003 that you can use to allow a client to Read More

Adobe Flash Player or simply “Flash Player” is an Adobe product that allows users to watch flash based content on the web. Flash allows websites to perform a wide variety of tasks that they would not be able to do via simple browser programming languages. For example, the popular video hosting website, YouTube, is run on Flash and provides interactivity within the videos themselves, such as the ability to click on in-video links to external websites and other YouTube videos. Flash is also used in many browser based games such Read More