mtamorfosis

Firewall

2008-05-07T04:45:00.000-07:00

The Firewalls FAQ (http://www.faqs.org/faqs/firewalls-faq/) defines a firewall as "a system or group of systems that enforces an access control policy between two networks." In the context of home networks, a firewall typically takes one of two forms:

* Software firewall - specialized software running on an individual computer, or
* Network firewall - a dedicated device designed to protect one or more computers.

Both types of firewall allow the user to define access policies for inbound connections to the computers they are protecting. Many also provide the ability to control what services (ports) the protected computers are able to access on the Internet (outbound access). Most firewalls intended for home use come with pre-configured security policies from which the user chooses, and some allow the user to customize these policies for their specific needs.

Videophone

2008-05-06T21:36:00.001-07:00

The widest use of video telephony occurs in mobile phones, as nearly all mobile phones supporting UMTS networks work as videophones using an internal camera, and are able to make video calls wirelessly to other UMTS users in the same country or internationally. As of Q2 2007, there are more than 131 million UMTS users on 134 networks in 59 countries
Videophones can also be used by the deaf to communicate with sign language over a distance. In US the FCC pays companies for providing Video Relay Service to deaf and hard-of-hearing individuals, where they use a videophone to talk through a sign-language translator to people using audio phones. Videophones are used to do on-site sign-language translation. The relatively low cost and widespread availability of mobile phones with video calling capabilities have given the deaf people new possibilities to communicate with the same ease as others, with some wireless operators even starting up free sign language gateways.
Videotelephony is also used in large corporate conferencing setups, and is supported by systems such as Cisco Unified Communications Manager, and similar systems from companies such as Tandberg, Radvision, and Polycom.

Latest Version Of Mobile

2008-05-06T21:36:00.000-07:00

Mobile phones plays a major role in our daily modern life..Because they are the better,
cheaper and easier ways to communicate.
Technology and fashion have given a number of latest and advanced handsets to suit the needs of every segment of mobile users. Orange mobile phones rock the world of mobile phone with their stunning looks and advanced features and also with the quality.
Every manufacturer trying the best to insert advanced technology in the mobile phones for the sake of users. Orange mobile phones really have done miracle in the market with their stunning features, as well as functions. Orange mobile phones come with 3G technology, which offers wireless voice telephony with broadband wireless data, in addition with, video calling capabilities.
SPV M 5000 is also another latest endeavour from Orange, it possesses the Microsoft windows, which enables you to work with word, excel and power point on your mobile phone.This is one of the advance version.. It also has a large memory and the latest Active Sync 4.0 weighing 285g.. Orange Mobile Phones provide better communication services ,Rather than any other ordinary handset. They also have made communication impulsive and easily available part of day to day life.

Digital Wireless Phone Service

2008-04-30T05:06:00.000-07:00

Digital wireless phone service is the premier means of accessing the Internet today. Digital wireless phone service is like the kinds of digital communications that you can find in other sectors today.

Digital wireless phone service provides a person who regularly uses a wireless phone a wide range of option in regard to that cell phone. First of all, digital wireless phone service allows a person to have crisper and clearer and more constant wireless phone service. Again, digital technology represents the premier and most up to date means of accessing cell phone service today.

In addition to allowing for better wireless phone connectivity, digital wireless phone service also expands the manner in which you can utilize your wireless phone today. Digital wireless phone service also allows a person to access other technological services through a wireless phone unit. This can include such things as allowing a person the ability to surf and use the Internet and World Wide Web more effectively through a wireless phone unit.

In addition, a person is able to use other types of video and audio services through a wireless phone thanks to the advent of digital wireless phone technology.

Brushes for Oil Painting

2008-04-23T16:46:00.000-07:00

You will need two sorts of paint brushes: stiff for handling most painting tasks, and soft for adding fine details.

Stiff brushes are made of hog hackle and come in three shapes: round, flat and filbert. Get a small range of sizes to begin with. Synthetic bristles make an acceptable alternative for most purposes, but the natural article is better.

The best soft brushes are sable, and the substitutes are much less satisfactory. A fan-head brush (sable or hog hair) may be needed to blend paint in a smooth way on the canvas.

Care of Brushes

Paint brushes are costly — most particularly sable brushes — and justify to be looked after. A used but cared-for paint brush will in fact perform much better than a new one. Remember:

1. Use painting knives to mix paint, not brushes.

2. Do not stand brushes point down in jars or containers: the hairs or bristles will be permanently bent out of shape.

3. Think before adding paint to a brush. Add the correct amount and apply according to needs: carefully or briskly, with the right pressure and action, holding the brush some distance from the tip.

4. Don't use the brush as a scoop, which will clog the ferrules. This paint has to be cleaned out, and will eventually spoil the handling property of the brush.

5. Clean brushes as soon as possible after use, and certainly at the end of the day's painting. Use turps followed by normal soap and water. Or wash in turps and give a final rinse in turpentine. Soft brushes can be dipped in milk, gently shaped, and allowed to dry, tips up, for a couple of days.

A Mobile Game

2008-03-23T19:01:00.000-07:00

A mobile game is a video game has fun on a mobile phone, Smartphone, PDA, handheld computer or any type of handheld or wireless device.

Mobile games are played using the technologies current on the device itself. For networked games, there are different technologies in common use. Examples contain text message (SMS), multimedia message (MMS) or GPRS location identification.

However, there are non networked applications, which simply use the machine platform to run the game software. The games may be installed over the air, they may be side loaded onto the receiver with a cable, or they may be embedded on the handheld devices by the OEM or by the mobile operator.

Mobile games are generally downloaded via the mobile operator's radio network, but in some cases are also loaded into the mobile handsets when purchased, or via infrared connection, Bluetooth or memory card.

Whole-house fan

2008-03-16T20:35:00.000-07:00

Whole-house fan is a kind of fan installed in a building's ceiling, designed to suck hot air out of the building. It is occasionally confused with an attic fan.

A whole-house fan sucks hot air out of a structure and forces it into the attic. This displaces the very hot air attentive in the attic (which is pushed out the gable-end or soffit vents). Then, with windows and/or doors open to the external, the whole-house fan draws cooler outside air into the building to replace the hot air (creating a cooling breeze whilst doing so).

Attic fans, by comparison, only serve to remove some hot air from the attic; no cooling effect is supply to the actual living space.

Origin of ice age theory

2008-03-09T21:11:00.000-07:00

The plan that, in the past, glaciers had been far more extensive was folk knowledge in some alpine regions of Europe (Imbrie and Imbrie, p25, quote a woodcutter telling de Charpentier of the former extent of the Swiss Grimsel glacier). No single person imaginary the idea. Between 1825 and 1833, Jean de Charpentier assembled proof in support of this idea. In 1836 Charpentier influenced Louis Agassiz of the theory, and Agassiz published it in his book Étude sur les glaciers of 1840.

At this early stage of knowledge, what were being studied were the glacial periods within the past few hundred thousand years, during the present ice age. The far previous ice ages' very existence was unsuspected.

2008-02-25T18:18:00.000-08:00

Paper Density

The paper density of a type of paper or cardboard is the collection of the product per unit of area. Two ways of expressing paper density are usually used:

* Expressed in grams per square metre (g/m²), paper density is also called as grammage. This is the evaluate used in most parts of the world.

* Expressed in conditions of the mass (in pounds) of a ream of 500 (or in some cases 1000) sheets of a specified (raw, still uncut) basis size, paper density is called as basis weight. The base size and area used here based on the product type. This convention is used in the United States, and (to a lesser degree) in a very little number of other countries that use United States paper sizes. Japanese paper is articulated as the weight in kg of 1000 sheets.

2008-02-19T18:07:00.000-08:00

Barcode Printer

A barcode printer (or bar code printer) is a computer peripheral for printing barcode labels or tags that can be fond of to physical objects. Barcode printers are normally used to label cartons before shipment, or to label retail items with UPCs or EANs.

The most regular barcode printers employ one of two different printing technologies. Direct thermal printers use a printhead to produce heat that causes a chemical reaction in specially designed paper that turns the paper black. Thermal transfer printers also use heat, but instead of reacting the paper, the heat melts a waxy or resin material on a ribbon that runs over the label or tag material. The heat transfers ink starting the ribbon to the paper. Direct thermal printers are normally less expensive, but they produce labels that can become illegible if exposed to heat, direct sunlight, or chemical vapors.

Barcode printers are designed for various markets. Industrial barcode printers are used in big warehouses and manufacturing facilities. They have big paper capacities, operate faster and have a longer service life. For retail and office environments, desktop barcode printers are most regular.

2008-02-11T17:43:00.000-08:00

Obsolete And Special-Purpose Printing Technologies

The following technologies are either obsolete, or limited to particular applications though most were, at one time, in widespread use.

Thermal printers work by selectively heating regions of particular heat-sensitive paper. These printers are limited to special-purpose applications such as money registers and the printers in ATMs and gasoline dispensers. They are also used in some older reasonably priced fax machines.

Impact printers rely on a forcible impact to transfer ink to the media, like to the action of a typewriter. All but the dot matrix printer rely on the use of shaped characters, letterforms that represent each of the characters that the printer was capable of printing. In addition, most of these printers were restricted to monochrome printing in a single typeface at one time, although bolding and underlining of text could be done by overstriking, that is, printing two or more impressions in the same character position. Impact printers varieties contain, Typewriter-derived printers, Teletypewriter-derived printers, Daisy wheel printers, Dot matrix printers and Line printers. Dot matrix printers remain in general use in businesses where multi-part forms are printed, such as car rental service counters.

Pen-based plotters were an alternate printing technology once general in engineering and architectural firms. Pen-based plotters rely on contact with the paper (but not impact, per se), and particular purpose pens that are mechanically run over the paper to create text and images.

2008-02-06T18:22:00.000-08:00

Integrated circuit

Integrated circuit viewing memory blocks, logic and input/output pads around the periphery Microchips with a transparent window, showing the integrated circuit inside. Note the fine silver-colored wires that attach the integrated circuit to the pins of the package. A monolithic integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mostly of semiconductor devices, as well as passive components) that has been contrived in the surface of a thin substrate of semiconductor material.

A hybrid integrated circuit is a miniaturized electronic circuit build of individual semiconductor devices, as well as passive components, bonded to a substrate or circuit board.

2008-01-28T17:58:00.000-08:00

Minicomputer

Minicomputer is a mostly outmoded term for a class of multi-user computers which generate the middle range of the computing spectrum, in between the largest multi-user systems (traditionally, mainframe computers) and the smallest single-user systems (microcomputers or personal computers). Formerly this class created a distinct group with its own hardware and operating systems notably having smaller address space (notice the cited numbers of bits in a data word, ranging from 8 to 24 bits commonly around 16-bits). While the distinction between mainframe computers and smaller computers residue fairly clear, contemporary middle-range computers are not well differentiated from personal computers, being typically just a more powerful but still compatible version of a personal computer. More modern conditions for such machines consist of midrange systems (common in IBM parlance), workstations (common in Sun Microsystems and general UNIX/Linux parlance), and servers.

2008-01-20T18:19:00.001-08:00

Microcomputer

A microcomputer is mostly often taken to mean a computer with a microprocessor (µP) as its CPU. Another common characteristic of these computers is that they take up physically small amounts of space. Desktop computers, video game consoles, laptop computers, tablet PCs, and a lot of handheld strategy may all be considered examples of microcomputers. Most microcomputers serve only a particular user at a time, but some, in the form of PCs and workstations running e.g. a UNIX(-like) operating system, may cater to a number of users concurrently. The µP does the greater part of the job of calculating on and manipulating data that all computers do.

2008-01-07T18:48:00.000-08:00

Mainframes

Mainframes (often colloquially referred to as big iron) are enormous and expensive computers used mostly by government institutions and large companies for mission critical applications, usually bulk data processing such as censuses, industry/consumer statistics, ERP, and financial transaction processing.

The term originated during the early 1970s with the introduction of lesser, fewer complex computers such as the DEC PDP-8 and PDP-11 series, which became known as minicomputers or in a minute minis. The industry/users then coined the term "mainframe" to describe bigger, earlier types (previously known simply as "computers").

2008-01-01T02:22:00.000-08:00

The first bullets

Advances in one either resulted beginning or precipitated advances in the other. Originally, bullets were surrounding metallic or stone balls placed in front of an explosive charge of gun powder at the end of a closed tube. As firearms became more scientifically advanced, from 1500 to 1800, bullets changed very little. They remained uncomplicated round lead balls, called rounds, differing only in their diameter.

The development of the hand culverin and matchlock arquebus brought regarding the use of cast lead balls as projectiles. "Bullet" is consequential from the French word "boulette" which roughly means "little ball". The original musket bullet was a spherical lead ball two sizes slighter than the bore, wrapped in a loosely-fitted paper patch which served to hold the bullet in the barrel firmly upon the powder. (Bullets that were not firmly upon the concentrate upon firing risked causing the barrel to explode, with the condition known as a "short start".) The loading of muskets was, therefore, easy with the old smooth-bore Brown Bess and comparable military muskets. The original muzzle-loading rifle, on the other hand, with a more intimately fitting ball to take the rifling grooves, was loaded with difficulty, particularly when the bore of the barrel was dirty from previous firings ("fouled"). For this reason, early rifles were not generally used for military purposes. Early rifle bullets necessary cloth patches to grip the rifling grooves, and to hold the bullet securely against the powder.

The first half of the nineteenth century saw a different change in the shape and function of the bullet. In 1826, Delirque, a French infantry officer, imaginary a breech with abrupt shoulders on which a spherical bullet was rammed down until it caught the rifling grooves.

2007-12-25T18:32:00.000-08:00

Bullet

A bullet is a rock-hard projectile propelled by a firearm or air gun and is normally made from metal (usually lead). A bullet (in contrast to a shell) does not contain explosives, and damages the intended target solely by imparting kinetic energy upon impact. Modern bullets for firearms are generally part of a cartridge, also known as a round. In contrast, bullets for air guns are not part of a cartridge. The word "bullet" is sometimes used to refer to the grouping of bullet, case, gunpowder and primer more properly known as a cartridge or round.; the Oxford English Dictionary definition of a bullet is "a projectile of lead ... for firing from a rifle, revolver etc."

2007-12-17T18:45:00.000-08:00

JAR Files

A JAR file has a manifest file situated in the path META-INF/MANIFEST.MF. The entries in the manifest file conclude how the JAR file will be used. JAR files which are intended to be executed as separate programs will have one of their classes specified as the "main" class. The obvious file would have an entry such as

Main-Class: myPrograms.MyClass

Such JAR files are characteristically started with a command similar to

java -jar foo.jar

These files can also include a Classpath entry, which identifies other JAR files to be overloaded with the JAR. This entry consists of a list of absolute or relation paths to other JAR files. Although intended to simplify JAR use, in practice, it turns out to be infamously brittle as it depends on all the relevant JARs being in the exact locations specified when the entry-point JAR was built. To change versions or locations of libraries, a new manifest is required.

2007-12-12T18:24:00.000-08:00

JAR

In computing, a JAR file (or Java ARchive) file used to deal out a set of Java classes. It is used to store compiled Java classes and connected metadata that can constitute a program.

* WAR (file format) (Web Application aRchive) files are also Java archives which store XML files, java classes, Java Server Pages and extra objects for Web Applications.

* EAR (file format) (Enterprise ARchive) files are also Java archives which store XML files, java classes and additional objects for Enterprise Applications.

* RAR (file format) (Resource Adapter aRchive) files are also Java archives which store XML files, java classes and added objects for J2EE Connector Architecture (JCA) applications.

JAR files can be created and extracted by the "jar" command that comes with the JDK. It can be done using zip tools, but as WinZip has a custom of renaming all-uppercase directories and files in lower case, this can raise support calls with whoever shaped the JAR or the tool authors themselves. WinRAR, on the additional hand, retains the original case of filenames.

2007-12-04T19:29:00.000-08:00

Grape

A grape is the non-climacteric fruit that grows on the permanent and deciduous woody vines of the folks Vitaceae. Grapes develop up in clusters of 6 to 300, and can be black, blue, golden, green, purple, red, pink, brown, peach or white. They can be eaten raw or used for producting jam, grape juice, jelly, wine and grape germ oil. Development of grapevines occurs in vineyards, and is called viticulture. One who studies and practises increasing grapes for wine is called a viticulturist. The leaves of the grape vine itself are painstaking safe to eat and are used in the production of dolmades

2007-11-26T17:49:00.000-08:00

Lighthouse of Alexandria

The Pharos of Alexandria was a large tower built in the 3rd century BC (between 285 and 247 BC) on the island of Pharos in Alexandria, Egypt to give out as that port's landmark, and later, its lighthouse.

With a height variously expected at between 115 and 150 meters (383 - 450 ft) it was among the tallest man-made structures on Earth for many centuries, and was recognized as one of the Seven Wonders of the World by Antipater of Sidon. It was the third big and tallest building after the two Great Pyramids (of Khufu and Khafra) for its whole life. Some scientists calculate approximately a much taller height exceeding 180 metres that would make the tower the tallest building up to the 14th century.

2007-11-19T17:49:00.001-08:00

Traffic Claming

Traffic calming is a set of strategies used by urban planners and traffic engineers which aims to slow down traffic and get better safety for pedestrians and bicyclists, although some of these features can also be hazardous to cyclists. It is now comparatively common in Europe, especially Northern Europe; less so in North America.Traffic calming has conventionally been justified on the grounds of pedestrian safety and reduction of noise and local air pollution which are side effects of the traffic. However, it has become more and more apparent that streets have many social and recreational functions which are severely impaired by fast car traffic. For much of the twentieth century, streets were designed by engineers who were charged only with ensuring traffic flow and not with development other functions of streets. The rationale for traffic reassuring is now broadening to include designing for these functions.

2007-11-12T17:56:00.001-08:00

Bareboat charter

A bareboat charter is an arrangement for the hiring of a boat, whereby no crew or provisions are contained as party of the agreement; instead, the people who rent the boat from the owner are responsible for taking care of such things.

There are legal differences between a bareboat charter and another types of charter arrangement, such as crewed or luxury yacht charter, commonly called time or voyage charters. In these charters the charterer can direct where the ship will go but the owner of the ship tells possession of the ship through its employment of the master and crew. In a bare-boat or demise charter, on the other hand, the owner gives possession of the ship to the charterer and the charterer retriew its own master and crew. The bare-boat charterer is sometimes known as a "disponent owner".

2007-11-05T18:32:00.001-08:00

Banana boat

A banana boat (or a boat made of bananas), often referred to simply as a banana, is an unpowered recreational boat designed to be pulled by a bigger boat. Riders sit astride a big tube which is supported by two smaller tubes which provide balance and footrests, permit them to experience some of the thrill of moving fast and close to the water much more easily and safely than by water-skiing or surfing and they are therefore a popular ride for children. Many large motor yachts or luxury yachts have a banana as one of their onboard "toys", but any powered boat can pull a banana, and they are sometimes available as a commercial ride at holiday resorts. Most models seat middle of three and ten people. Two models with two seating tubes side by side are available. Banana boats are often yellow and are sometimes actually builted into the shape of a banana.

2007-10-29T21:19:00.000-07:00

Types of boats

Airboat

Airboats are needlly flat-bottomed vessels propelled in a forward direction by an aircraft type propeller and powered by either an aircraft or automotive engine. The engine and propeller are covered in a protective metal cage that prevents objects, i.e., tree limbs, branches, clothing, beverage containers, wildlife from coming in contact with the whirling propeller, which could cause devastating falt to the vessel and traumatic injury to the operator and passengers.

The propeller gives a rearward column of air that propels the airboat forward. Steering is accomplished by forced air passing across vertical rudders. There must be a forceful airflow in order to the vessel to be steered. Airboats not have brakes and are incapable of traveling in reverse. Stopping and reversing direction are dependent upon operator/pilot/driver skill.