Selenographers are those who study the features of the moon. This includes all physical features which are viewable with the eyes by using tools such as telescopes and imaging devices. The practice is a smaller part of selenology which is the science of the moon. Selenographers of today study the changes that occur on the moon when we visit as well as map important information for the government about what we have done on the moon. Famous Selenographers in History There has been a large selection of selenographers in history. The famous ones are Read More

Cell phone text messages typically use the SMS (Short Message Service) protocol. Most cellular service providers charge fees to send and receive text messages. There are numerous ways to send text messages for free, but they vary among cell service providers. Send Free Text Messages by Purchasing the Right Service Plan Some cell service plans include free text messaging. That is the simplest solution. Send Text Messages for Free via the Web Many websites allow visitors to send text messages to cell phones at no cost. We provide such a Read More

Anodizing/anodized aluminum refers to both a specific type of aluminum alloy as well as the process that is used to produce this alloy. The term “anodizing” is used to describe a technique for expanding the natural oxide layer of metals, especially aluminum. Anodizing changes the texture of aluminum by creating a much more porous surface that provides more adhesion for dyes and glues than a smooth surface does. Anodizing also increases aluminum’s wear and corrosion resistance, making the aluminum object much stronger in virtually all environments. How does Anodizing Aluminum Read More

The Type "N" connector, commonly known as the N connector, is used to join coaxial cables using a threaded RF connector. It was one of the first connectors to be capable of carrying microwave-frequency signals. Invented by Paul Neill of Bell Labs in the 1940s, the connector is named after him. Design Details These connectors were devised to carry signals that could reach 1 GHz in certain military applications. The Type N connector that is commonly used today can easily handle up to 11 GHz. However, that was just the Read More

As plastic is not biodegradable like other items that are thrown away on a daily basis, landfills often accumulate large amounts of plastic jugs, bottles, and bags. In order to reduce the amount of plastic material in these landfills, a plastic granulator is used to shred the plastic into tiny flakes called granules. The plastic granules are then resold to industrial facilities as raw material to be reshaped into new plastic products. To better illustrate the design and process of plastic granulators, this article will describe how they work and Read More

Before one can truly appreciate how to convert a video graphics array (VGA) to a High-Definition Multimedia Interface (HDMI), one has to first understand what they are. Why make the change if one doesn't even understand what the two are. What is VGA? VGA started as a chip in the IBM computers. It was meant as a way of providing graphics. However, as time has gone on, it has gained a second name, replacing array with adapter. Therefore, adapters like the 15-pin adapter is a VGA adapter. It pushes VGA through Read More

Digital Rights Management (DRM) refers to a system of access control techniques that digital systems manufacturers implemented. DRM allows companies to protect their assets from being copied or otherwise unlawfully distributed by either analog or digital means, with more emphasis on the latter. DRM can be used in any digital system and can function in a variety of ways to restrict users from simply copying a digital file or accessing a digital system altogether. How Digital Rights Management Works There are many different types of DRM, but most fall under Read More

Digital watermarks are invisible or visible marks on an electronic image, music, video, text, or any material that serve the purpose of protecting the copyright of a material’s owner. In this sense, digital watermarks are like the watermarks used in currencies for counterfeit security. Stenography can also be applied in digital watermarks if one wants to make the watermark less detectable. A digital watermark is primarily a transparent image overlaid on the actual image. In some cases, though, digital watermarks cannot be detected by the human eye and includes important Read More

A Firefox Theme is a type of Firefox Add-On that can be installed in order to change the appearance and/or functionality of Mozilla Firefox. Firefox Themes allow users to customize the “look and feel” of their web browser without removing any of the basic functions provided by Mozilla Firefox. Firefox Themes can be created by any Firefox user, but are most commonly created by Firefox developers, and are the Firefox equivalent of Google Chrome Themes or Windows Live Themes.   How To Get Firefox Themes Users can download and install Read More

A Nouse is a new computer technology that has been invented and is being developed by Dr. Dmitry Gorodnichy from the Institute of Information Technology in Ottawa. The project is called Nouse Perceptual Vision User Interfaces, and is under the Video Recognitions Project. This is also known as Perceptual Vision Technology. This technology will enable computer users to use their eyes and nose as pointers in place of a conventional mouse pointer and will serve as a hands-free alternative for computer users. How It Works The face, most especially the Read More