Rayleigh scattering refers to a phenomenon in which light is scattered by particles in the atmosphere that are much smaller than its wavelength. It can also apply to other forms of electromagnetic radiation as well as other media, but can be seen most directly in the sky. Rayleigh scattering is responsible for the sky’s many different colors, such as blue during the day, orange at sunset, and even the yellow hue of the Sun. Different wavelengths of light that are reflected off of small molecules, dust, and other particles in Read More

HDTV stands for High Definition TV and while the FCC does not have a standard definition for HDTV, it is widely agreed upon that HDTV is defined as having higher quality video, audio and a wider image aspect ratio than standard television broadcast signals. HDTV is part of a larger set of standards called ATSC. The FCC (Federal Communications Commission) has mandated that all licensed television stations be capable of broadcasting DTV by 2007. To understand how much higher the quality HDTV is, you need to know the quality of Read More

In order to appreciate the full details of a specific selection of information, companies must use data profiling software to analyze the data in question. Data profiling software is excellent for when you want to know more about the quality of the data that you are working with in order to maximize data potential and ensure that the data is organized correctly. In this article, we will go over data profiling and review a number of data profiling software. What is Data Profiling Data profiling is used to ensure file Read More

A video scaler converts an existing video signal or stream from one resolution to another. It is normally used to upscale or convert a signal from a standard definition to a higher definition broadcast. Video scalers are commonly found in televisions, computer monitors, video editing equipment, audio/visual periphery devices, and broadcasting equipment. A video scaler is not always embedded in a device, however, as it can convert standard definition displays or movies into HD format on its own. Today, most video scalers are digital devices. However, they can also be Read More

Setting up a static IP address on a computer network can be very helpful, especially if port forwarding is required on the network. A static IP address makes it possible for a port configuration to work, but since dynamic IPs create a new IP address each time a computer starts up, port forwarding on a network can become inoperable. Before tips on how to set up a static IP address are discussed, here is some information regarding IPs in general. What is an IP Address? Internet Protocol (IP) address is Read More

Hydrometers measure a liquid’s density and specific gravity, and rely on Archimedes’ principle of buoyancy. They are made up of a sealed glass bulb with a long, narrow tube connected to one end and a lead or mercury shot under the bulb so it can float in the upright position. The tube has a scale that displays the specific gravity of the liquid being measured. Hydrometers are normally calibrated to measure a liquid’s density at a predesignated temperature and the scale varies based on the instrument’s intended use. What is Read More

The Play Station 3 (PS3) is a popular video game and multimedia console that Sony Corporation produced. The PS3 competes directly with the Nintendo Wii and Xbox 360. It is unique in that it was the first gaming console to also serve as a multimedia suite as it can play blue-ray discs and be connected to the Internet. Despite the console's maturity, consumers still find a need to fix a number of common PS3 issues including corrupt hard disks, PS3 hard drive errors, and DNS issues that arise for online Read More

SSE stands for Streaming SIMD Extensions. Introduced by Intel in its line of Pentium III processors, SIMD technology allows for "Single Instruction Multiple Data." While older processors could only process one data element per instruction, SIMD technology allows instructions to handle multiple data elements, making processing much quicker. SSE's use of SIMD technology allows for data processing in applications such as 3D graphics to benefit greatly from the use of SSE. In contrast to MMX, a fairly similar technology, SSE registers have much larger bits, allowing SSE to work even Read More

People have many reasons for  restoring the iTunes library. These include purchasing a new computer, reloading an operating system, or suffering a hard drive crash. Once the computer is restored, the iTunes program has to be reinstalled if it is not backed up via alternative means. Once installed, music in the previous iTunes library will not be restored automatically. In fact, if an iPod, iPhone, or iPad is connected to and synced with the new iTunes installation, the entire music library stored on the portable device can be lost. When Read More

Multimedia is simply multiple forms of media integrated together. Media can be text, graphics, audio, animation, video, data, etc. An example of multimedia is a Mozart web page that has text regarding the composer, an audio file of some of his music, and even a video of his music being played in a hall. Besides multiple types of media being integrated with one another, multimedia can also stand for interactive types of media such as video games, CD ROMs that teach a foreign language, or an information Kiosk at a Read More