The heart of the Java Platform is the concept of a "virtual machine" that carries out Java bytecode programs. This bytecode is the same despite what hardware or operating system the program is running under. There is a JIT (just-in-time compilation) compiler inside the Java Virtual Machine, or JVM. The JIT compiler converts the Java bytecode into native processor instructions at run-time and caches the native code in memory during the tome of the execution.
The use of bytecode as an intermediary language that allows Java programs to run on any platform that has a virtual machine accessible. The use of a JIT compiler means that the applications in Java, after a small delay throughout loading and once they have "warmed up" by being all or mostly JIT-compiled, tend to run about as speed as native programs. Because JRE version 1.2, Sun's JVM execution has included a just-in-time compiler as an alternative of an interpreter.
Wednesday, November 28, 2007
Wednesday, November 21, 2007
Difference between C and C++ programming language
This C language was the C++ predecessor. Even though not actually being more powerful than C, C++ lets the programmers to more easily deal with and operate with Objects, using an OOP (Object Oriented Programming) concept.
The C++ allows the programmer to create classes, which are a bit alike to C structures. Although it is possible to apply anything which C++ could implement in C, C++ aids to standardize a means in which objects are created and managed, whereas the C programmer who implements the same system has alot of liberty on how to really implement the internals, and the style among programmers will differ alot on the design choices made in a program.
In C, some will choose the handler-type, where a main function initializes a handler, and that handler can be provided to other functions of the library as an object to manage on/through. Others will even want to have that handler link all the associated function pointers within it which then must be called using a convention closer to C++.
The C++ allows the programmer to create classes, which are a bit alike to C structures. Although it is possible to apply anything which C++ could implement in C, C++ aids to standardize a means in which objects are created and managed, whereas the C programmer who implements the same system has alot of liberty on how to really implement the internals, and the style among programmers will differ alot on the design choices made in a program.
In C, some will choose the handler-type, where a main function initializes a handler, and that handler can be provided to other functions of the library as an object to manage on/through. Others will even want to have that handler link all the associated function pointers within it which then must be called using a convention closer to C++.
Wednesday, November 14, 2007
A short note on the history of Honda
The Honda VTR1000F is a motorcycle invented by Honda. In 1997 Honda started producing a street-oriented GT motorcycle using a traditionally important name: Superhawk. The earlier (60's) Superhawk was a parallel twin motorcycle that Robert M. Pirsig rode in "Zen and the Art of Motorcycle Maintenance". The original Superhawk was a profitable success, that's why the name is being recycled. The latest Superhawk was introduced after the Ducati 916 made V-twin sport bikes well-liked again. The new Superhawk uses an all new 90 degree V-twin. The bike introduced numerous new design concepts for example the "pivotless frame", side radiators, single casting engine case, involving rods with cap screws rather than nuts, and the biggest carburetors Honda ever put on a motorcycle. "Pivotless frame" intended that engine was a stressed member with the swing arm bolted straightforwardly to the engine. The bike was come into public in 1997 as an early release 1998 model year. One motorcycle magazine recommended (circa 2000) that this bike was the fastest 0-60 mph production bike at that time. A racing version of the bike was anticipated from Honda. The Honda produced in 2000 the RVT1000R (RC51) recognized outside the United States as the VTR1000SP, though the bike had only four engine parts in general with the modern Superhawk. The RC51 was completely new V-twin racing platform that won the World Superbike championship its first year racing with the Colin Edwards and Castrol team.
Thursday, November 01, 2007
Long jump athletic game
The long jump (previously called as broad jump) is an athletic (track and field) event or game in which athletes attempt to land as far from their take-off points as possible.
The Competitors sprint down a runway (at elite level, generally coated with the same rubberized surface as running tracks), jump to the extent that they can off a somewhat raised wooden board into a pit filled with fine gravel or sand. The minimum distance from the board to the indentation made by the participant in the gravel is measured. If the participant starts his leap with any part of his foot facing the board the jump is affirmed illegal and no distance is recorded.
The correct format of the competition differs, but normally each competitor will get a number of attempts to make his or her longest jump, and simply the longest legal jump counts towards the results. The participant with the longest legal jump at the end of competition is confirmed or declared as the winner. The Speed in the run-up and a high leap off the board are the fundamentals of achievement at the discipline, and it is unsurprising that many sprinters, especially including Carl Lewis, as well compete successfully in the long jump.
The Competitors sprint down a runway (at elite level, generally coated with the same rubberized surface as running tracks), jump to the extent that they can off a somewhat raised wooden board into a pit filled with fine gravel or sand. The minimum distance from the board to the indentation made by the participant in the gravel is measured. If the participant starts his leap with any part of his foot facing the board the jump is affirmed illegal and no distance is recorded.
The correct format of the competition differs, but normally each competitor will get a number of attempts to make his or her longest jump, and simply the longest legal jump counts towards the results. The participant with the longest legal jump at the end of competition is confirmed or declared as the winner. The Speed in the run-up and a high leap off the board are the fundamentals of achievement at the discipline, and it is unsurprising that many sprinters, especially including Carl Lewis, as well compete successfully in the long jump.
Saturday, October 27, 2007
An overview on Traffic calming
The Traffic calming is a set of strategies used by inner-city planners and traffic engineers which intends to slow down traffic and get better safety for pedestrians and bicyclists, even though some of these features can also be unsafe to cyclists. It is currently comparatively common in Europe, particularly Northern Europe; less so in North America.
The Traffic calming has customarily been justified on the grounds of pedestrian security and lessening of noise and local air pollution which are side effects of the traffic. On the other hand, it has become ever more apparent that streets have many social and recreational functions which are strictly impaired by fast car traffic. For instance, residents of streets with light traffic had, on normal, three more friends and twice as numerous acquaintances as the people on streets with heavy traffic which was or else similar in dimensions, income, etc. For much of the twentieth century, streets were intended by engineers who were charged simply with ensuring traffic flow and not with fostering the other functions of streets. The underlying principle for traffic calming is currently broadening to contain designing for these functions.
One most important side effect of traffic calming is the impedance to urgent situation services. A police car can effortlessly navigate most traffic calming measures. The same cannot be believed for fire trucks and ambulances, yet. They time and again have to slow down to securely cross speed bumps or chicanes. In several locales, the law prohibits traffic calming measures by the side of the routes used by the emergency services.
The Traffic calming has customarily been justified on the grounds of pedestrian security and lessening of noise and local air pollution which are side effects of the traffic. On the other hand, it has become ever more apparent that streets have many social and recreational functions which are strictly impaired by fast car traffic. For instance, residents of streets with light traffic had, on normal, three more friends and twice as numerous acquaintances as the people on streets with heavy traffic which was or else similar in dimensions, income, etc. For much of the twentieth century, streets were intended by engineers who were charged simply with ensuring traffic flow and not with fostering the other functions of streets. The underlying principle for traffic calming is currently broadening to contain designing for these functions.
One most important side effect of traffic calming is the impedance to urgent situation services. A police car can effortlessly navigate most traffic calming measures. The same cannot be believed for fire trucks and ambulances, yet. They time and again have to slow down to securely cross speed bumps or chicanes. In several locales, the law prohibits traffic calming measures by the side of the routes used by the emergency services.
Thursday, October 18, 2007
Definition of Glass
The materials meaning of a glass is a uniform amorphous solid material, generally produced when a rightfully viscous molten material cools very quickly to below its glass transition temperature, thus not giving enough time for a regular crystal lattice to form. A simple instance is when table sugar is melted and cooled quickly by dumping the liquid sugar onto a cold surface. The resulting solid is amorphous, not crystalline similar to the sugar was originally, which can be seen in its concordat fracture.
The word of glass comes from Latin glacies (ice) and corresponds to German Glass, M.E. glas, A.S. gales. Germanic tribes used the word gales to say amber, recorded by Roman historians as glaesum. Anglo-Saxons used the word glaer for amber.
The residue of this article will be concerned with a definite type of glass—the silica-based glasses in common make use of as a building, container or pretty material.
In its pure form, glass is a clear, relatively strong, hard-wearing, basically inert and biologically inactive material which can be shaped with very smooth and impervious surfaces. These pleasing properties lead to a great many uses of glass. Glass is, on the other hand, brittle and will break into sharp shards. These properties can be modified, or even changed completely, with the addition of other compounds or heat treatment.
Common glass is generally amorphous silicon dioxide (SiO2), which is the same chemical compound establish in quartz, or in its polycrystalline shape, sand.
The word of glass comes from Latin glacies (ice) and corresponds to German Glass, M.E. glas, A.S. gales. Germanic tribes used the word gales to say amber, recorded by Roman historians as glaesum. Anglo-Saxons used the word glaer for amber.
The residue of this article will be concerned with a definite type of glass—the silica-based glasses in common make use of as a building, container or pretty material.
In its pure form, glass is a clear, relatively strong, hard-wearing, basically inert and biologically inactive material which can be shaped with very smooth and impervious surfaces. These pleasing properties lead to a great many uses of glass. Glass is, on the other hand, brittle and will break into sharp shards. These properties can be modified, or even changed completely, with the addition of other compounds or heat treatment.
Common glass is generally amorphous silicon dioxide (SiO2), which is the same chemical compound establish in quartz, or in its polycrystalline shape, sand.
Thursday, October 11, 2007
The facts about Mercury
Mercury is the nearby planet to the Sun and the eighth biggest. Mercury is somewhat smaller in diameter than the moons Ganymede and Titan but more than twice as enormous.
Mercury's orbit is extremely eccentric; at perihelion it is just 46 million km from the Sun but at aphelion it is 70 million. The position of the perihelion processes about the Sun at a very slow rate. 19th century astronomers made extremely careful observations of Mercury's orbital parameters but could not sufficiently explain those using Newtonian mechanics. The tiny differences between the observed and predicted values were a slight but nagging problem for many decades. It was thought that one more planet (sometimes called Vulcan) slightly nearer to the Sun than Mercury might account for the discrepancy. But in spite of much effort, no such planet was found. The real reply turned out to be much more dramatic: Einstein's General Theory of Relativity! Its right prediction of the motions of Mercury was a main factor in the early acceptance of the theory.
Mercury is greatly denser than the Moon (5.43 gm/cm3 vs. 3.34). Mercury is the second densest most important body in the solar system, after Earth. Actually Earth's density is due in part to gravitational density; if not for this, Mercury would be denser than Earth. This signifies that Mercury's dense iron core is comparatively larger than Earth, probably comprises the greater part of the planet. Mercury therefore has only a comparatively thin silicate mantle and crust.
Mercury's inner is dominated by a big iron core whose radius is 1800 to 1900 km. The silicate outer shell (analogous to Earth's mantle and crust) is just 500 to 600 km thick. At least some of the core is perhaps molten. Mercury truly has an extremely thin atmosphere consisting of atoms blasted off its surface by the solar wind. Because Mercury is so hot, these atoms quickly flee into space. Thus on the contrary, to the Earth and Venus whose atmospheres are stable, Mercury's atmosphere is always being replenished.
Mercury's orbit is extremely eccentric; at perihelion it is just 46 million km from the Sun but at aphelion it is 70 million. The position of the perihelion processes about the Sun at a very slow rate. 19th century astronomers made extremely careful observations of Mercury's orbital parameters but could not sufficiently explain those using Newtonian mechanics. The tiny differences between the observed and predicted values were a slight but nagging problem for many decades. It was thought that one more planet (sometimes called Vulcan) slightly nearer to the Sun than Mercury might account for the discrepancy. But in spite of much effort, no such planet was found. The real reply turned out to be much more dramatic: Einstein's General Theory of Relativity! Its right prediction of the motions of Mercury was a main factor in the early acceptance of the theory.
Mercury is greatly denser than the Moon (5.43 gm/cm3 vs. 3.34). Mercury is the second densest most important body in the solar system, after Earth. Actually Earth's density is due in part to gravitational density; if not for this, Mercury would be denser than Earth. This signifies that Mercury's dense iron core is comparatively larger than Earth, probably comprises the greater part of the planet. Mercury therefore has only a comparatively thin silicate mantle and crust.
Mercury's inner is dominated by a big iron core whose radius is 1800 to 1900 km. The silicate outer shell (analogous to Earth's mantle and crust) is just 500 to 600 km thick. At least some of the core is perhaps molten. Mercury truly has an extremely thin atmosphere consisting of atoms blasted off its surface by the solar wind. Because Mercury is so hot, these atoms quickly flee into space. Thus on the contrary, to the Earth and Venus whose atmospheres are stable, Mercury's atmosphere is always being replenished.
Monday, September 10, 2007
A Snapshot of Macro-Economics
Economics is the learning of making choices. High school and college students all over required to take economic courses in order to achieve a diploma. Why is economics so important because it provides a guide for students for real-world situations Economics is divided into two types microeconomics and macroeconomics. Microeconomics is the study of economics at a slim level. For example absorbed on how a detailed business functions is microeconomics.
Studying the world economy is classified as Macroeconomics; its center on a much broader level. All students must understand the concept of insufficiency. Scarcity is a condition that occurs because society has unlimited wants and needs however the amount of property is limited. Unlimited wants and needs are what encourage us to create goods and services. We are never satisfied therefore we always have a want or need. On the other hand our income is limited.
Studying the world economy is classified as Macroeconomics; its center on a much broader level. All students must understand the concept of insufficiency. Scarcity is a condition that occurs because society has unlimited wants and needs however the amount of property is limited. Unlimited wants and needs are what encourage us to create goods and services. We are never satisfied therefore we always have a want or need. On the other hand our income is limited.
Monday, September 03, 2007
Jakarta Slide
Slide is an open-source content management system from the Jakarta project. It is written in Java and implements the WebDAV protocol. Slide is a set of APIs to implement the Web DAV client. Due to this Slide can also be seen as a Content Management Framework. The use of Web DAV, which is a superset of HTTP, makes Slide an ideal candidate for web-based content management. Among the applications of Slide are their uses as a file server, in intra net applications, and as an excellent repository for XML both as properties and versioned files for persistence of JavaBeans. It also has an extensible storage device that can be used for incorporation and adaptation.
Monday, August 27, 2007
Entertainment
Entertainment is an occasion, piece, or movement designed to give enjoyment or leisure to an audience. The audience may join in the entertainment passively as in actively as in computer games. The playing of sports and reading of journalism are usually included in entertainment, but these are regularly called activity more specifically, because they involve some energetic participation past mere leisure.
While people have laughing themselves since the beginning of time, the entertainment industry first became a leading force in culture in the 20th century with the development of latest electronic technologies of recording and spreading. Western peoples, tired of serious purposes and gathering massacre, turned to popular culture following the two world wars. The financial basis of this new culture was advertising of free or inexpensive entertainment program. In their peak, television networks were great selling machines which, besides entertaining people, prohibited both commercial and political markets by providing direct access to the group of customers. This "territory" is now in danger by the explosion and segmentation of media and especially by the growing importance of communication by computer which allows the consumer to look for out the informational message as an alternative of having it broadcast to him or her. A new system of world history sees Americans in changeover between a fourth, entertainment-based "society" and a future fifth evolution based on computer communication.
While people have laughing themselves since the beginning of time, the entertainment industry first became a leading force in culture in the 20th century with the development of latest electronic technologies of recording and spreading. Western peoples, tired of serious purposes and gathering massacre, turned to popular culture following the two world wars. The financial basis of this new culture was advertising of free or inexpensive entertainment program. In their peak, television networks were great selling machines which, besides entertaining people, prohibited both commercial and political markets by providing direct access to the group of customers. This "territory" is now in danger by the explosion and segmentation of media and especially by the growing importance of communication by computer which allows the consumer to look for out the informational message as an alternative of having it broadcast to him or her. A new system of world history sees Americans in changeover between a fourth, entertainment-based "society" and a future fifth evolution based on computer communication.
Monday, August 20, 2007
Carriage clock
Carriage clock is a minute, spring-driven clock, designed for traveling, developed in the early 19th century in France. The case, usually plain or gilt-brass, is rectangular with a carrying handle and often set with glass or more rarely enamel or porcelain panels. A feature of carriage clocks is the platform escapement, sometimes visible through a glazed aperture on the top of the case.
Monday, August 13, 2007
Flak jacket
A flak jacket or flak vest is a type of protective clothing. Today it frequently refers to bulletproof vests, particularly Type III and on top of which have added steel, titanium, ceramic or polyethylene plates which can resist high-powered rounds such as from rifles.
Tuesday, August 07, 2007
Planetary ring
A planetary ring is a ring of dirt and other small particles orbiting around a planet in a flat disc-shaped region. The most spectacular and famous planetary rings are those around Saturn, but the other three gas giants of the solar system possess ring systems of their own.
Tuesday, July 31, 2007
subwoofer
A subwoofer refers to either a driver, or a complete amplifier dedicated to the reproduction of bass audio frequencies, typically from 150 Hz down to 20 Hz. In the case of a rotary woofer, it is possible to reproduce frequencies down to 1 Hz. Bass frequencies below about 80Hz become increasingly difficult for typical floor standing or bookshelf loudspeakers to reproduce at high playback levels because they do not have large enough drivers to generate the required amount of air displacement. Therefore, subwoofers are useful for augmenting main loudspeakers by providing playback of low bass frequencies at high levels.
Sunday, July 22, 2007
Extranet
An extranet is a personal network that uses Internet protocols, network connectivity, and possibly the public telecommunication system to securely share part of an organization's information or operations with suppliers, vendors, partners, customers or other businesses. An extranet can be viewed as part of a company's Intranet that is extended to users outside the company. It has also been described as a "state of mind" in which the Internet is professed as a way to do business with other companies as well as to sell products to customers.
Friday, July 13, 2007
Neem cake
Neem cake natural manure is the by-product obtained in the process of cold pressing of Neem fruits and kernels, and the solvent removal process for neem oil cake. It is a potential source of organic manure under the Bureau of India Standards, Neem has established considerable potential as a fertilizer. For this purpose, neem cake and neem leaves are particularly promising. Puri , in his book on neem has given details about neem seed cake as manure and nitrification inhibitor. The author has described that after processing neem cake can be used for partial replacement of poultry and cattle feed.
Sunday, July 08, 2007
Web portal
A Web portal is a site that functions as a point of admittance to information on the World Wide Web. Portals present information from diverse sources in a united way. Popular portals are MSN, Yahoo, and AOL. Aside from the search engine standard, web portals offer other services such as news, stock prices, infotainment and various other features. Portals provide a way for enterprises to provide a steady look and feel with access control and procedures for multiple applications, which otherwise would have been different entities altogether.
Sunday, July 01, 2007
Malai
Malai is a South Asian term for clotted cream or Devonshire cream. It is made by heating non-homogenized whole milk to about 80ºC (180ºF) for about one hour and then allowing to cool. A thick yellowish layer of fat and coagulated proteins forms on the surface, which is skimmed off. The process is typically repeated to remove most of the fat. Malai has about 55% butterfat. Buffalo milk is thought to produce better malai because of its high fat content.Malai is used in such recipes as Malai Kofta dumplings and the sweet Malai Kulfi.
Tuesday, June 26, 2007
History of Motorola
Motorola started as Galvin developed Corporation in 1928. The name Motorola was adopted in 1947, but the word had been used as a trademark since the 1930s. Founders Paul Galvin and Joe Galvin came up with the name Motorola when his company started manufacturing car radios. A number of early companies making phonographs, radios, and other audio tackle in the early 20th century used the suffix "-ola," the most famous being Victrola; RCA made a "radiola"; there was also a company that made jukeboxes called Rock-Ola, and a film editing device called a Moviola. The Motorola prefix "motor-" was chosen because the company's first focus was in automotive electronics.
Most of Motorola's crop has been radio-related, starting with a battery eliminator for radios, through the first walkie-talkie in the world, defense electronics, cellular infrastructure equipment, and mobile phone manufacturing. The company was also strong in semiconductor technology, including integrated circuits used in computers. Motorola has been the key supplier for the microprocessors used in Commodore Amiga, Apple Macintosh and Power Macintosh personal computers. The chip used in the latter computers, the PowerPC family, was developed with IBM and in a partnership with Apple. Motorola also has a diverse line of communication products, including satellite systems, digital cable boxes and modems.
Most of Motorola's crop has been radio-related, starting with a battery eliminator for radios, through the first walkie-talkie in the world, defense electronics, cellular infrastructure equipment, and mobile phone manufacturing. The company was also strong in semiconductor technology, including integrated circuits used in computers. Motorola has been the key supplier for the microprocessors used in Commodore Amiga, Apple Macintosh and Power Macintosh personal computers. The chip used in the latter computers, the PowerPC family, was developed with IBM and in a partnership with Apple. Motorola also has a diverse line of communication products, including satellite systems, digital cable boxes and modems.
Saturday, June 23, 2007
Fish food
Fish food is plant or animal material intended for consumption by pet fish kept in aquariums or ponds. Fish foods usually contain macro nutrients, trace elements and vitamins necessary to keep captive fish in good health. Approximately 80% of fishkeeping hobbyists feed their fish exclusively prepared foods that most commonly are produced in flake, pellet or tablet form.Pelleted forms, some of which sink rapidly, are often used for larger fish or bottom feeding species such as loaches or catfish. Some fish foods also contain additives, such as beta carotene or sex hormones, to artifically enhance the color of ornamental fish.
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