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Most Recent Articles
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- HP ProLiant DL380 G4 Data Protection Storage Server
The HP ProLiant DL380 G4 Data Protection Storage Server is a network attached storage (NAS) appliance that utilizes Microsoft System Center Data Protection Manager 2006 (DPM) to provide rapid & reliable recovery, near continuous data protection, and operational simplicity for disk-based backup of Windows file servers in an Active Directory domain. Disk based backup and simple end-user file recovery deliver a low total cost of ownership. - Fed up with tape, hospital moves to storage jukebox
(Computerworld) -- When Cabell Huntington Hospital installed a new image and
records archiving system late last year, it was given a choice of sticking with
its optical disk jukebox and its spinning disk arrays or going back to magnetic
tape. - Developing a storage reference architecture
good architect knows that you don't start planning a building at the blueprint stage. You develop representations of what the building will look like after getting a good understanding of the goals and requirements - pictures and models come before creating the actual building plan. Once the concept is defined and agreed upon, the detailed plan is developed. - QUANTUM THEORY
Quantum theory was established in the early 1900s in response to the failure of Newton's . mechanics to describe the absorption and emission of light by atoms and molecules. - AIRCRAFT - So how do they fly
Aircraft designers think of the air like we think of water it is fluid and it has mass. So, just as a lake will support a water skier, air will support a flying machine – as long as it keeps moving fast enough. - How does a Hovercraft work?
The hovercraft was invented in 1959 by Sir Christopher Cockerell. He recognized the fact that vehicles which are in contact with the ground are impeded by bumps and are largely restricted to even surfaces such as roads and rails. In the sea, boats are slowed down because they have to push their way through the water. - What is a MAGLEV TRAIN?
These high-speed magnetically levitating (maglev) trains are being built in Germany and Japan and a cut-down version already connects Birmingham airport to its traditional railway station. As they do not make contact with the rails there is no friction to slow maglevs down and no moving parts to wear out. However, their sophisticated electrical systems are not easy to build. - How does the telephone actually work?
Capturing speech and sending it halfway round the world in a fraction of a second is a modern wonder. The telephone is the beginning and end of a worldwide communications network. It has four basic parts – a microphone, an earpiece, a dial and a ringer. - What is the technology behind the light bulb
The light bulb is the most familiar, useful and widespread electrical invention on Earth.
This everyday brainwave is based on the simple fact that very thin wires get hot when an electric current is passed through them, and some even glow. The trick is to find the best material that will glow the brightest, for longest. Today, the metal tungsten is used in nearly all bulbs – it does not melt until it reaches 3382°C and as it approaches this temperature little of the metal evaporates. - How Does the Microwave Oven Actualy Work?
As they fall between light and ordinary radio waves, they share some of the characteristics of both. Like light they travel in straight lines and can be blocked by solid objects. They can also be focused, beamed and reflected. Microwaves made their first major impact on the modern world when it was discovered that they were ideal for radar. - What is Fibre Optic Cable and How does it Work?
Optical fibres are sometimes called ‘light pipes’ because that is how they behave any light that enters one end is trapped in the pipe until it falls out of the other end. However, there is no hole down the middle. An optical fibre is a thin strand of transparent material (glass or plastic), coated with a thin sheath of a different transparent material. It is usually less than one millimetre in diameter and can be as fine as 0.0004 mm. The glass or plastic is so pure that light is not impeded by it – but the boundary between the core and the sheath. From the light’s point of view, is like the wall of a pipe.
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