The opening of the terms "philosopher" and "philosophy" has been qualified to the Greek thinker Pythagoras. The ascription is base on a way in a lost work of Herakleides Pontikos, a follower of Aristotle. It is measured to be part of the widespread myths of Pythagoras of this time. "Philosopher" replaces the word "sophist”, which was used to explain "wise men," teachers of rhetoric, who were significant in Athenian democratic system.
The history of philosophy is normally divided into three periods: Ancient philosophy, medieval philosophy, and Modern philosophy.
To give a thorough list of the main branches of philosophy is difficult, because there have been dissimilar, equally acceptable divisions at different times, and the division are often relative to the concern of a particular period. However, the following branches are usually established as the main ones.
* Metaphysics investigate the nature of being and the world. Usual branches are cosmology and ontology.
* Epistemology is concerned with the nature and scope of awareness, and whether knowledge is achievable. Among its central concern has been the challenge posed by skepticism and the relationships among truth, belief and justification.
* Ethics, or 'moral philosophy', is concerned with questions of how persons ought to act or if such question are answerable. The major branches of ethics are meta-ethics, normative ethics and applied ethics.
* Political Philosophy is the study of government and the association of individuals and communities to the state. It includes question about law, property, and the rights and obligation of the citizen.
* Aesthetics deal with beauty, art, enjoyment, sensory-emotional values, perception, and matters of taste and response.
* Logic deals with pattern of thinking that lead from true premises to true conclusion. Beginning in the late 19th century, mathematicians such as Frege began a mathematical action of logic, and today the subject of logic has two broad divisions are mathematical logic and what is now called philosophical logic.
* Philosophy of Mind deals with the natural world of the mind and its relationship to the body, and is typified by disputes among dualism and materialism. In recent years there is an increasing link between this branch of philosophy and cognitive discipline
* Philosophy of language is the reasoned query into the nature, origins, and usage of language.
Most studious subject has a philosophy, for example the philosophy of science, the philosophy of mathematics, and the philosophy of history. In addition, a range of academic subject has emerged to deal with areas which would have in history been the subject of philosophy. These comprise Psychology, Anthropology and Science.
Philosophy is the study of common and fundamental troubles regarding matters such as continuation, knowledge, truth, justice, beauty, validity, mind, and language. Philosophy is renowned from other ways of address these questions by its critical, usually systematic advance and its reliance on consistent argument. The word philosophy born from Ancient Greek origin its meaning "love of knowledge", "love of wisdom".
A Trailer is normally an unpowered vehicle pulled by a powered vehicle, because powered trailers are more explicitly called potrailers. Commonly, the term trailer refers to such vehicles used for transport of goods and materials.
Trailer winches are intended to load (or unload) boats and other cargo to and from a trailer. The are invented a ratchet mechanism and cable. The handle on the ratchet mechanism is twisted to tighten or loosen the tension on the winch cable. There are both manual and motorized trailer winches
Popup campers are trivial, aerodynamic trailers that can be towed by a small car, such as the BMW Air Camper and the Coleman Bayside. They are built to be shorter than the tow vehicle, minimizing drag.
Others range from two-axle campers that can be pulled by most mid-sized pickups to trailers that are as long as the host country's law allows for drivers without individual permits. Larger campers tend to be fully integrated leisure vehicles, which often are used to tow single-axle dolly trailers to allow the driver to bring small cars on their travels.
Technology is a large concept that deals with a species' procedure and information of tools and crafts, and how it affects a group' capability to control and get used to its environment. In human culture, it is an importance of science and engineering, although several technical advances predate the two concepts.
Technology has affected society and its environment in a number of ways. In many societies, technology has helped increase more advanced economies and has allowed the rise of a spare time class. Yet, many technological processes create unwanted by-product, known as pollution, and reduce natural resources, to the detriment of the Earth and its environment. Various implementations of technology control the values of a society and new technology raises new moral questions. Examples include the rise of the concept of effectiveness in terms of human productivity, a term originally useful only to machines, and the challenge of traditional norms.
Most diamonds are over three billion years old, two-thirds the age of the Earth. There are a few "youngsters," though, which are only 100 million years old. Most diamonds were formed more than 100 miles below the surface of the Earth, some from perhaps 400 miles down.
The most recent kimberlite volcano eruption was approximately 53 million years ago - just a few ticks of the geologic clock - but there is no reason to believe there will not be more in the future.
Although diamonds are perceived as a white—actually colorless—gem, they come in a spectrum of colors; colored diamonds are called "fancies."
India was the only known source of diamonds before the sixth century and the predominant source for over 2,000 years, until the mid-eighteenth century.
Romans believed that diamonds had the power to ward off evil and wore them as talismans. They inherited this belief from Indian mythology.
A law in thirteenth-century France decreed that only the king could wear diamonds.
Diamonds were not used as gems in European jewelry until the late 13th century. They were initially used for such purposes as engraving other gems, such as sapphire cameos, and for drilling holes in hardstone beads (such beads drilled by diamonds have been dated to archaeological sites as early as 400 BCE).
The most recent diamond discoveries have been made in North America—in the Northwest Territories of Canada and in Colorado—where explorers found diamond pipes in 1990.
Some diamonds are composed of carbon, that is recycled organic matter, previously incorporated in marine organisms.
"One-hour eyeglasses" have only become possible with the use of diamond tools, which can quickly and accurately shape the lenses.
Because diamonds can withstand extremely high temperatures and corrosive conditions, and because they are transparent to most forms of light and electromagnetic radiation, they are ideal for use as windows in industry and in space probes, including the 1978 Pioneer space probe to the surface of Venus.
Every copper wire in your computer, television, and house has been shaped with a die—the device that squeezes wire to the desired diameter—made from diamond.
Diamond scalpels are particularly effective because their sharp, hard edges never dull, and, because diamond's hydrophobic surface—its resistance to being wetted—ensures that wet tissue does not adhere to the blade.
The largest rough diamond ever found was the Cullinan, 3,106 carats, discovered on January 26, 1905 in the Premier mine of South Africa. It was cut into nine major stones, including the largest gem diamond, the Cullinan 1, or Star of Africa, 550.20 carats. This is mounted in the British Royal Scepter and housed in the Tower of London.
In the 1950s, Gemological Institute of America developed the first internationally accepted diamond grading system. This system provides unbiased opinions of the quality of polished diamonds by applying uniform criteria to their grading.
The GIA Gem Trade Laboratory Diamond Grading Report has become the benchmark for the international gem and jewelry industry, and can be found accompany diamonds worldwide
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.
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.
Bluetooth is a technology that allows devices to communicate with each other without cables or wires. It is an electronics "standard," which means that manufacturers that want to include this feature have to incorporate specific requirements into their electronic devices. These specifications ensure that the devices can recognize and interact with other devices that use the Bluetooth technology.
Many popular manufacturers are making devices that use Bluetooth technology. These devices include mobile phones, computers, and personal digital assistants (PDAs). The Bluetooth technology relies on short-range radio frequency, and any device that incorporates the technology can communicate as long as it is within the required distance. The technology is often used to allow two different types of devices to communicate with each other. For example, you may be able to operate your computer with a wireless keyboard, use a wireless headset to talk on your mobile phone, or add an appointment to your friend's PDA calendar from your own PDA.
Korean Food is casually represented by bulgogi and kimchi. In fact, however, Koreans are proud of their diet, quite varied and full of nutrition. It is richly endowed with fermented foods, vegetables and grains, soups, teas, liquors, confectionery and soft drinks. Kimchi and doenjang paste made of soybeans are the best-known examples of Korean fermented foods, and these have recently become highly valued for their disease-prevention effects. Korea boasts hundreds of vegetable and wild green dishes. The Korean meal is almost always accompanied by a big bowl of hot soup or stew, and the classic meal contains a variety of vegetables. Korean foods are seldom deep-fried like Chinese food; they are usually boiled or blanched, broiled, stir-fried, steamed, or pan-fried with vegetable oil.
Korean Etiquette
Korean families usually eat rice, soup, and three to four side dishes including the sine qua non, kimchi. From each person's left are arranged rice, soup, spoon, and chopsticks, while stews and side dishes are placed in the center to be shared by all members. Koreans use a spoon to eat rice, soup, and stews and chopsticks for rather dry side dishes, but spoon and chopsticks are not used simultaneously. Koreans also do not hold their bowls and plates while eating. When the meal is over, the spoon and chopsticks are placed back where they were. Koreans generally believe that sharing food from one bowl makes a relationship closer. Still, one who does not wish to share the one-for-all dish can courteously ask the host for an individual bowl or plate. Today most Korean restaurants offer individual bowls and plates. In the olden days, talking was not allowed at the dinner table, but today, eating etiquette has become more liberal. Chopsticks may be used to eat rice.
Nokia is the world's largest manufacturer of mobile phones, with a global device market share of approximately 40% in Q4 of 2007. Other major mobile phone manufacturers include Samsung (14%), Motorola (12%), Sony ericsson (9%) and LG Mobile (7%).[5] These manufacturers account for over 80% of all mobile phones sold and produce phones for sale in most countries.. these are all some of the important mobile phones manufacturers.
Other manufacturers include Apple Inc., Audiovox Benefon, BenQ-Siemens, CECT, High Tech Computer Corporation ,Fujitsu, Kyocera, Mitsubishi Electric, NEC, Neonode, Philips, Research In Motion, Sagem, Sanyo, Sharp, Siemens, Sierra Wireless, SK Teletech, Sonim Technologies, T&A Alcatel, and Toshiba. There are also specialist communication systems related to (but distinct from) mobile phones.
Now a days there are number of mobile phones manufacures are mainly concentrating on some factors,like style,power consumption,storage capacity etc….
Games played on a mobile piece of equipment using localization technology like GPS are called location-based games. In other words: while it does not matter for a normal mobile game where exactly you are (play them anywhere at anytime), the player's coordinate and movement are main elements in a Location-based game. The best-known example is the treasure hunt game Geocaching, which can be played on any mobile appliance with integrated or external GPS receiver. External GPS receivers are generally connected via Bluetooth. More and more mobile phones with integrated GPS are expected to come.
Besides Geocaching, there exist several other location-based games which are somewhat in the stage of research prototypes than a commercial success.
Mobile phones commonly obtain power from batteries which can be recharged from mains power, a USB port or a cigarette lighter socket in a car. Formerly, the most regular form of mobile phone batteries were nickel metal-hydride, as they have a low size and weight. Lithium-Ion batteries are sometimes used, as they are lighter and do not have the voltage depression that nickel metal-hydride batteries do. Many mobile phone manufacturers have now switched to using lithium-Polymer batteries as different to the older Lithium-Ion; the main advantages of this being even lower weight and the possibility to make the battery a shape other than strict cuboids. Mobile phone manufacturers have been experimenting with alternate power sources, together with solar cells.
Monday, March 10, 2008
Uses & Design of Supercomputer
Uses
Supercomputers are used for extremely calculation-intensive tasks such as weather forecasting, climate research (including research into global warming), molecular modeling (computing the structures and properties of chemical compounds, biological macromolecules, polymers, and crystals), physical simulations (such as simulation of airplanes in wind tunnels, simulation of the detonation of nuclear weapons, and research into nuclear fusion), cryptanalysis, and the like. Military and scientific agencies are important users.
Design
Supercomputers traditionally gained their speed over conventional computers through the use of inventive designs that allow them to perform many tasks in parallel, as well as complex detail engineering. They tend to be specialized for certain types of computation, generally numerical calculations, and perform poorly at more general computing tasks. Their memory hierarchy is very carefully designed to make certain the processor is kept fed with data and instructions at all times—in fact, much of the performance difference between slower computers and supercomputers is due to the memory hierarchy design and componentry. Their I/O systems have a propensity to be designed to support high bandwidth, with latency less of an issue, because supercomputers are not used for transaction processing.
As with all highly parallel systems, Amdahl's law applies, and supercomputer designs devote huge effort to eliminating software serialization, and using hardware to accelerate the remaining bottlenecks.
Software tools
Software tools for distributed processing contain standard APIs such as MPI and PVM and open source-based software solutions such as Beowulf and openMosix which facilitate the creation of a sort of "virtual supercomputer" from a collection of ordinary workstations or servers. Technology like Rendezvous pave the way for the making of ad hoc computer clusters. An example of this is the distributed rendering function in Apple's Shake compositing function. Computers running the Shake software simply need to be in proximity to each other, in networking terms, to automatically discover and use each other's resources. While no one has yet built an ad hoc computer cluster that rivals even yesteryear's supercomputers, the line between desktop, or even laptop, and supercomputer is beginning to blur, and is probable to continue to blur as built-in support for parallelism and distributed processing increases in mainstream desktop operating systems. An easy programming language for supercomputers remains an open explore topic in Computer Science.
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