Wednesday, May 09, 2007
Xenium Mod Chip attached to an Xbox. The 2x6 header interfaces the chip with the LPC bus, while the red soldered wire overrides the original BIOS's D0 line. A Mod chip, a portmanteau of 'Modification microchip', is a device used to get around the digital rights management of many popular game consoles, including those made by Microsoft, Sony, and Nintendo for the purposes of playing backup, imported, pirated, or homebrew games and/or applications. They are used mostly on systems that are CD/DVD-based due to the availability and low cost of blank media such as CD-R s and DVD+/-R s.
Almost all modern console gaming systems have hardware-based schemes which ensure that only officially authorized games may be used with the system and implement regional lockout similar to the scheme used in DVD movies. The specific technical nature of these DRM systems varies by system, and may include cryptographic signing, intentionally unreadable sectors, custom optical media, or some combination thereof. Mod chips are available also for some DVD players, to defeat region code enforcement and user.
Tuesday, May 01, 2007
Robotics is the science and technology of robots, their design, manufacture, and application.Robotics requires a functioning knowledge of electronics, mechanics, and software. A person working in the field is a roboticist. The word robotics was first used in publish by Isaac Asimov, in his science fiction short story "Runaround" (1941).
Although the exterior and capabilities of robots fluctuate enormously, all robots share the features of a mechanical, movable structure under some form of control. The chain is warped of links ,actuators and joints which can allow one or more degrees of freedom. Most contemporary robots use open serial chains in which each link connects the one before to the one after it. These robots are called serial robots and often resemble the human arm. A few robots, such as the Stewart platform, exploit closed parallel kinematic chains. Other structures, such as those that mimic the mechanical structure of humans, different animals and insects, are comparatively rare. However, the development and use of such structures in robots is an dynamic area of research. Robots used as manipulators have an end effector mounted on the last link. This end effector can be anything from a welding mechanism to a mechanical hand used to manipulate the environment.
Friday, April 27, 2007
Biography (from the Greek words bios meaning "life", and graph in meaning "write") is a type of literature and further forms of media such as film, based on the written accounts of individual lives. While a biography may focus on a subject of fiction or non-fiction, the term is frequently in reference to non-fiction. Pat Shipman however, says "I think a good biographer has to write fiction some of the time to make apparent a significant event in someone's life." This is sometimes debated. As opposed to a profile or curriculum vitae, a biography develops a complex analysis of personality, highlighting different aspects of it and including intimate details of experiences. A biography is more than a list of distant facts like birth, education, work, relationships and death. It also delves into the emotions of experiencing such events.
Ancient Greeks developed the biographical tradition which we have inherited, although until the 5th century AD, when the word 'biographic' first appears, in Damascus' Life of Isodorus, biographical pieces were called simply "lives" ("bioi"). It is quite likely that the Greeks were drawing on a pre-existing eastern tradition; certainly Herodotus' Histories contains more exhaustive biographical information on Persian kings and subjects than on anyone else, implying he had a Persian source for it.
Tuesday, April 24, 2007
100 Groundwater is water flowing within aquifers below the water table. Within aquifers, the water flows through the pore spaces in unconsolidated sediments and the fractures of rocks. Groundwater is recharged from, and ultimately flows to, the surface naturally; natural discharge often occurs at springs and seeps and can form oases or swamps. Groundwater is also often withdrawn for agricultural, municipal and industrial use through man-made wells. The study of the giving out and movement of groundwater is hydrogeology.
Relative groundwater travel times, click to view full size Groundwater can be a long-term 'reservoir' of the natural water cycle, as opposed to short-term water reservoirs like the atmosphere and fresh surface water. The figure shows how deep groundwater can take a very long time to complete its natural cycle. Groundwater is naturally replenished by surface water from precipitation, streams, and rivers when this recharge reaches the water table. It is estimated that the volume of groundwater is fifty times that of surface freshwater; the icecaps and glaciers are the only larger reservoir of fresh water on earth.
Usable groundwater is contained in aquifers, which are subterranean areas of permeable material that channel the groundwater's flow. Aquifers can be confined or unconfined. If a confined aquifer follows a downward grade from a recharge zone, groundwater can become pressurized as it flows. This can create artesian wells that flow freely without the need of a pump. The top of the upper unconfined aquifer is called the water table or paretic surface, where water pressure is equal to atmospheric pressure.
Wednesday, April 18, 2007
A mobile phone or cell phone is an electronic telecommunications device. Most current mobile phones connect in its place to the network using a wireless radio wave transmission technology. These mobile phones communicate via a cellular network of base stations, which is in turn connected to the conventional telephone network. In the late 1970s and early 1980s the car phone was the only mobile phone available.In addition to the standard voice function of a telephone, a mobile phone can support many additional services such as SMS for text messaging, packet switching for access to the Internet, and MMS for sending and receiving photos and video.Some of the world's largest mobile phone manufacturers include Alcatel, Audiovox, Fujitsu, Kyocera, LG, Motorola, NEC, Nokia, Panasonic, Philips, Sagem, Samsung, Sanyo, Sharp, Siemens, SK Teletech, Sony Ericsson, and Toshiba.There are also specialist communication systems linked to, but distinct from mobile phones, such as satellite phones and Professional Mobile Radio. Mobile phones are also separate from cordless telephones, which generally operate only within a limited range of a specific base station.
Monday, April 09, 2007
A freeway is a multi-lane highway designed for high-speed travel by large numbers of vehicles, and having no traffic lights, stop signs, nor other regulations requiring vehicles to stop for cross-traffic.
In general Design features
Freeways have high speed limits and multiple lanes for travel in each direction. The number of lanes may vary from four or six in rural areas to as high as sixteen or eighteen in certain global cities.
A median or central reservation separates the lanes traveling in opposite directions. Partition may be achieved through distance or through the use of high crash barriers like cable barriers and Jersey barriers.
Crossroads are bypassed by grade division using underpasses and overpasses. In addition to the sidewalks attached to roads that go over or under a freeway, nearly all countries also supply specialized pedestrian bridges and underground tunnels. Such structures enable pedestrians and cyclists to cross the freeway without having to make a long detour to the nearest road for which a grade separation has been provided.
Freeway entrances and exits are limited in number, and are designed with special onramps and off ramps, so as to ensure that vehicles do not disrupt the main flow of traffic as they enter or leave the freeway. In some countries, the exits are numbered. Exit numbering may be by mile or kilometer, or in a simple chronological fashion.
Monday, April 02, 2007
A lightning rod is a metal narrow piece or rod, typically of copper or similar conductive material, used as part of lightning security to guard tall or isolated structures from lightning damage. Its formal name is lightning finial. Sometimes, the system is informally referred to as:
A lightning conductor,
A lightning arrester, or
A lightning discharger.
However, these terms really refer to lightning guard systems in general or specific mechanism within them.
Lightning rod dissipaters make a structure less nice-looking by which charges can flow to the air around it. This then reduces the voltage between the point and the storm cloud, making a strike less likely. The most common charge dissipaters appear as slightly-blunted metal spikes sticking out in all information from a metal ball. These are mounted on short metal arms at the very top of a radio antenna or tower, the area by far most likely to be struck. These devices diminish, but do not eradicate, the risk of lightning strikes.
Arrestors
A lightning arrestor is a mechanism that shunts or diverts the huge voltage and electrical current of a lightning hit to an earthed ground. Electrical equipment can be protected from lightning by an arrester, a device that contains one or more gas-filled spark gaps between the equipment's cables and earth. An arrester is designed to handle much higher jolts of electricity than a surge protector, which cannot handle a direct strike at all.
When lightning exceeds the arrestor's breakdown voltage, the currents arcs to the ground and prevents arcing around inside sensitive electronic equipment joined further down line. The glimmer gap may be filled with a noble gas, or with air. Other types may work by overcrowding normal irregular current, but allowing the direct current from a lightning discharge.
Lightning arrestors are normally installed on electric power broadcast lines, and on radio tower feed lines between the radio antenna and spreader. Smaller ones can also be installed on the mains electricity service coming into a building, just before the circuit breaker panel. Telephone wires also have fusible links sometimes where they enter a building, joined by carbon which will vaporize with very high current.
Thursday, March 29, 2007
100 The Sun is the VIP at the centre of our Solar system. It is infrequently referred to as Sol to distinguish it from other "suns". Planet Earth orbits the Sun, as do a lot of other bodies, including other planets, asteroids, meteoroids, comets and dust. Its heat and light support almost all life on Earth.
The Sun has a mass of about 2×1030kg, which is not at all higher than that of an average star. About 74% of its mass is hydrogen, with 25% helium and the respite made up of trace quantities of heavier rudiments. It is thought that the Sun is about 5 billion years old, and is about half way through its key sequence evolution, during which nuclear fusion reactions in its core fuse hydrogen into helium. In about 5 billion years time the Sun will turn into a planetary nebula.
Although it is the bordering star to Earth and has been intensively studied by scientists, many questions about the Sun remain unanswered, such as why its outer atmosphere has a temperature of over 106 K when its able to be seen surface has a temperature of just 6,000 K.
Sunday, March 25, 2007
A cellular network is a radio network made up of a number of radio cells (or just cells) each served by a fixed transmitter, normally known as a (base station). These cells are used to cover dissimilar areas in order to provide radio coverage over a wider area than the area of one cell. Cellular networks are naturally asymmetric with a set of fixed main transceivers each serving a cell and a set of distributed transceivers which provide services to the network's users.
Cellular networks offer a number of advantages over alternative solutions,
increased capacity
reduced power usage
better coverage
A good (and simple) example of a cellular system is an old taxi driver's radio system where a city will have some transmitters based around a city. We'll use that as an example and assume that each transmitter is handled independently by a different operator.
Tuesday, March 20, 2007
The view camera is a type of camera with a very long history, but they are still used today by professional and amateur photographers who want full control of their images. The view camera is essentially a light-tight assembly comprised of a flexible mid-section, or bellows, attached to a device that holds a film sheet, photo plate or digital imager at one end (the rear standard) and a similar one that holds the lens at the other end (the front standard). The front and rear standards are not fixed relative to each other (unlike most cameras). Movement of the front and rear standards allows the photographer to move the lens and film plane separately for precise control of the image's focus, depth of field and perspective.
Wednesday, March 14, 2007
Eye color is a polygenic trait and is determined mainly by the amount and type of pigments present in the eye's iris. Humans and animals have many phenotypic variations in eye color. In humans, these variations in color are credited to varying ratios of eumelanin produced by melanocytes in the iris.The brightly colored eyes of many bird species are mostly determined by other pigments, such as pteridines, purines, and carotenoids.
Three main elements within the iris add to its color: the melanin content of the iris pigment epithelium, the melanin content within the iris stroma, and the cellular density of the iris stroma.In eyes of all colors, the iris pigment epithelium contains the black pigment, eumelanin.Color variations among different irises are normally attributed to the melanin content within the iris stroma.The density of cells within the stroma affects how much light is absorbed by the underlying pigment epithelium.
Friday, March 09, 2007
Kerala is a state on the tropical Malabar Coast of southwestern India. Nicknamed as one of the "10 paradises of the world" by the National Geographic traveller Kerala is famous particularly for its ecotourism initiatives. Its unique culture and traditions, joined with its varied demography, has made it one of the the majority popular tourist destinations in India. Growing at a rate of 13.31%, the tourism industry considerably contributes to the state's economy. The Kerala Tourism Development Corporation, the government agency that oversees the tourism prospects of the state, has adopted the brand God's Own Country for its campaigns. The slogan holds global Superbrand status.Popularly visited attractions in the state include the beaches at Kovalam, Cherai and Varkala, the hill stations of Munnar, Nelliampathi, and Ponmudi, and national parks and wildlife sanctuaries such as Periyar and Eravikulam National Park. The "backwaters" region — an extensive network of interlocking rivers, lakes, and canals that center on Alleppey, Kumarakom, and Punnamada — also see heavy tourist traffic. Examples of Keralite architecture, such as the Padmanabhapuram Palace, Padmanabhapuram, are also visited. Kochi, the commercial capital of the state, is known as the "Queen of the Arabian Sea". Alappuzha, the first planned town in Kerala, is called the "Venice of the East".
Monday, March 05, 2007
The word deaf is used in a different way in different contexts, and there is some controversy over its meaning and implications. In scientific and medical terms, deafness normally refers to a physical condition characterized by lack of sensitivity to sound. Notated as deaf with a lowercase d, this refers to the audiological experience of someone who is partly or wholly lacking hearing In legal terms, deafness is defined by degree of hearing loss. These degrees include profound or total deafness (90 dB - 120 dB or more of hearing loss), severe (60 dB - 90 dB), moderate (30 dB - 60 dB), and mild deafness(10 dB - 30 dB of hearing loss). Both severe and moderate deafness can be referred to as partial deafness or as hard of hearing, while mild deafness is usually called hard of hearing.
Within the Deaf community, the term "Deaf" is often capitalized when written, and it refers to a tight-knit cultural group of people whose primary language is signed, and who practice social & cultural norms which are different from those of the surrounding hearing community. This community does not mechanically include all those who are clinically or legally deaf, nor does it exclude every hearing person. According to Baker & Padden, it includes any person or persons who "identifies him/herself as a member of the Deaf community, and other members accept that person as a part of the community"
Thursday, March 01, 2007
A spear is an ancient weapon used for hunting and war, consisting of a shaft, generally of wood, with a sharpened head. The head may be just the sharpened end of the shaft itself, as is the case with bamboo spears, or it may be of one more material fastened to the shaft. The most common design is of a metal spearhead, shaped somewhat like a dagger.
Spears were arguably one of the most general personal weapons from the late Bronze Age until the advent of firearms. They may be seen as the ancestor of such weapons as the lance, the halberd, the naginata and the pike. One of the initial weapons fashioned by human beings and their ancestors, it is still used for hunting and fishing, and its influences can still be seen in contemporary military arsenals as the rifle mounted bayonet.
Spears can be used as both melee and ballistic weapons. Spears used mainly for thrusting tend to have heavier and sturdier designs than those intended exclusively for throwing. Two of the most well-known throwing spears are the javelin thrown by the ancient Greeks and the pilum used by the Romans.
Friday, January 26, 2007
That's not all, though. In addition to dedicated training in writing, editing, and reporting, Journalism wants a working knowledge of history, culture, and current events. You'll more than likely be required to take up a broad range of courses that runs the range from statistics to the hard sciences to economics to history. There would also be a lot of haughty talk about professional ethics and civic responsibility too - and you'll be tested on it. To top it all off, you'll perhaps work on the university newspaper or radio station, or possibly complete an internship with a magazine or a mass media conglomerate.
Thursday, November 02, 2006
Gold is a extremely sought-after valuable metal that for many centuries has been used as money, a store of value and in ornaments. The metal occurs as nugget or grains in rocks and in alluvial deposits and is one of the coinage metals. It is a soft, glossy, yellow, dense, malleable, and ductile (trivalent and univalent) change metal. Modern manufacturing uses include dentistry and electronics. Gold forms the basis for a financial typical used by the International Monetary Fund (IMF) and the Bank for International resolution (BIS). Its ISO currency code is XAU.
Gold is a tinny element with a trait yellow color, but can also be black or ruby when finely alienated, while colloidal solutions are intensely tinted and often purple. These colors are the effect of gold's plasmon frequency lying in the visible range, which causes red and yellow glow to be reflected, and blue light to be engrossed. Only silver colloids show the same interactions with light, albeit at a shorter occurrence, making silver colloids yellow in color.
Gold is a good conductor of temperature and electricity, and is not precious by air and most reagents. Heat, damp, oxygen, and most corrosive agents have very little chemical effect on gold, making it well-suited for use in coins and jewelry; equally, halogens will chemically alter gold, and aqua regia dissolve it.
Pure gold is too soft for ordinary use and is hard-boiled by alloying with silver, copper, and other metals. Gold and its lots of alloys are most often used in jewelry, coinage and as a typical for monetary exchange in various countries. When promotion it in the form of jewelry, gold is calculated in karats (k), with pure gold being 24k. However, it is more commonly sold in lower capacity of 22k, 18k, and 14k. A lower "k" indicates a higher percent of copper or silver assorted into the alloy, with copper being the more typically used metal between the two. Fourteen karat gold-copper alloy will be almost identical in color to definite bronze alloys, and both may be used to produce polish and added badges. Eighteen karat gold with a high copper content is establish in some traditional jewelry and will have a distinct, though not dominant copper cast, giving an attractively warm color. A comparable karat weight when alloyed with silvery metals will appear less humid in color, and some low karat white metal alloys may be sold as "white gold", silvery in exterior with a slightly yellow cast but far more resistant to decay than silver or sterling silver. Karat weights of twenty and higher is more general in modern jewelry. Because of its high electrical conductivity and confrontation to decay and other desirable combinations of physical and chemical properties, gold also emerged in the late 20th century as an vital industrial metal, particularly as thin plating on electrical card associates and connectors.
Wednesday, October 18, 2006
It is possible to perform an immoral act against non-human animals. In order to perform an immoral act against a non-human animal, one must define the word "morality". According to the definition it means conformity to the rules of right conduct, on the other hand immorality means wickedness or evil. So in absorption a wicked or an evil act against an animal is an immoral act also. I believe that it may be possible to perform an immoral act against an animal because they are creatures just like us. They also feel pain and emotions just like us humans. When someone breaches our rights, we get hurt which often results in some kind of action. But the animals were helpless, it can't take any action because they are less intelligent then humans. However the humans are the supreme and superior beings on this planet and that we are on the highest evolutionary scale, but still that does not give us the right to perform wrong acts to the animals. Some of the worst or immoral acts that I strongly oppose to are animal experimentation, entertainment involving animals, hunting and finally habitat destruction.
When religious leaders were decided finally lifted these prohibitions, it was too late, vivisection was already entrenched in medical and educational institutions. Now imagine ourselves in animals’ shoes, whose homes are destroyed everyday by the minute. As an evil in nature as animal experimentation sounds, so is the entertainment business involving animals.
Monday, October 09, 2006
All over life people are faced with a variety of hurdles. Let us try to know How they choose to overcome these hurdles determines whether they become successful or not, it would be nice if there was an instruction manual to tell one how to be successful, how to overcome these hurdles. Among the most difficult hurdles facing people today is college. For Often times people go into college with their eyes closed tightly, meaning they are totally unprepared for what lye’s ahead. There may be a variety of aspects that determine whether students are successful in college. To meet the basic requirements to enter college, selecting the right courses, learning how to study on the college level, and managing time are all key factors in becoming a successful college student.
And for the enrolment in college, one must first meet the basic requirements of that institution. The requirements for some colleges are more difficult than others. To become a successful student in college, one must choose a college in which they meet the basic requirements. For the most all academically based colleges, a basic requirement is a high school diploma or G.E.D. Some of the colleges base acceptance on the student’s high school grade point average. The colleges with difficult admission requirements are looking not only for the meritorious and intelligent students.
More often, student feels that there just are not enough hours in a day. Often in the time the counselors can send students in the right direction for achieving their goals, as well as helping them to select courses to go along with their intended major.
College courses may require more effort and studying than high school.
When a student is accepted into a college, one of the most difficult decisions is ahead, course selection. BY having a talk with a counselor at this point is extremely helpful for a student. The above are just four examples of the various skills it takes to become successful. And also many classes require several hours per day of studying. Various classes require different methods of studying. The languages English requires writing essays and elaborate reading. Now he or she may faces with choosing his or her major. It all depends upon the students’ interest.
Friday, October 06, 2006
Women and Education:
Acceding women and men equal access to education in light of the Fourteenth Amendment’s pledge of equal protection.
Although taken for granted by many, co-sex educational institutions for higher learning are really just recent occurrences. And For the most part, in the colleges and universities, particularly elite ones, taught either men or women. So the reasons for this separation date back to early American history, when a woman’s place was seen as “in the home.” And In addition, education was seen, though ridiculously, as having detrimental effects on the woman.
And the some of these ludicrous, yet back then “scientific” beliefs, included that women’s brains were smaller than men’s were therefore, making them “less capable of academic learning.” And It was also said that if women utilized their brains at the time of their adolescent years, then their reproductive organs would not develop correctly causing possible sterility.
The motherhood has always been seen as a strong link for women to their personal identities. However, the greatest oppression would be to threaten its existence.
Take an example, in 1971 after a congressional hearing reported that in
Tuesday, October 03, 2006
Every day we must take decisions that affect our lives. To Choose a college is one of the very most important decision in life, exceeded only by the choice of a wife or a husband. By looking the decision through financially speaking, college can easily be the second largest expenditure in life, surpassed only by the cost of a house. For four years the colleges’ cost far more than the average expense of a house in some states. College is just more than a preparation for a career. By Often, the person who graduates becomes a different person from what he or she was as an entering first year student. Furthermore, the imprint of a particular college or university can remain for life. After some decades later, people may say knowingly, "He was a “hawk,” or “She went to Monmouth University.” And also for better or worse, the choice of a college has lifelong implications.
To choose a right college was a very stressful process. Another important factor in choosing college was looking for in a college, was that I was receiving a good education for a reasonable price. It will cause you to grow as an individual and learn to become more independent. The process may help you to believe in yourself and in your abilities.
Choosing a college is a biggest decision in your life. You have to go through the whole process by yourself receiving assistance only when needed. Choosing a college may impact your life immensely. What helps to make the process much easier was narrowing your search down to the colleges that possesses qualities for which you were looking. There was so much going on in your life that you may felt like you had no time to think about your future.