Saturday, June 30, 2007

Electrostatic induction theory:

Another theory is that opposite charges are driven apart by the above mechanism and power is stored in the electric field between them. Cloud electrification appears to necessitate strong updrafts which hold water droplets upward, supercooling them to -10 to -20 C. These have a collision with ice crystals to form a soft ice-water mixture called graupel. The collisions result in a slight positive charge being transferred to ice crystals, and a slight negative charge to the graupel. Updrafts drive lighter ice crystals upwards, causing the cloud top to accumulate increasing positive charge. The heavier negatively charged graupel falls towards the middle and lower portions of the cloud, building up an increasing negative charge. Charge separation and accumulation continue until the electrical potential becomes sufficient to initiate lightning discharges, which occurs when the gathering of positive and negative charges forms a adequately strong electric field.

Monday, June 25, 2007


Software basically is the distinct image or representation of physical or material position that constitute configuration to or functional identity of a machine, usually a computer. As a substance of memory, software in principle can be changed without the alteration to the static paradigm of the hardware thus without the remanufacturing thereof. generally software is of an algorithmic form which translates into being to a progression of machine instructions. Some software, however, is of a relational form which translate into being the map of a recognition network.

Software is a program that enables a computer to achieve a specific task, as contrasting to the physical components of the system . This include application software such as a word processor, which enables a user to achieve a task, and system software such as an operating system, which enables other software to run suitably, by interfacing with hardware and with other software.

The term "software" was first used in this intellect by John W. Tukey in 1957. In computer science and software engineering, computer software is all computer program. The perception of reading different sequences of instructions into the memory of a apparatus to control computations was invented by Charles Babbage as part of his difference engine. The theory that is the source for most modern software was first projected by Alan Turing in his 1935 essay Computable numbers with an application to the Entscheidungs problem.

Practical computer systems partition software into three major classes: system software, programming software and application software, although the division is subjective, and often blurred.

* System software is one of the major class helps run the computer hardware and computer system. It includes working systems, device drivers, analytical tools, servers, windowing systems, utilities and more. The intention of systems software is to protect the applications programmer as much as possible from the details of theexacting computer complex being use, especially memory and other hardware features, and such accessory procedure as communications, printers, readers, displays, keyboards, etc.

* Programming software usually provide tools to support a programmer in writing computer programs and software with different programming languages in a more suitable way.The tools comprise text editors, compilers, interpreters, linkers, debuggers, and so on, An incorporated development environment merge those tools into a software bundle, and a programmer may not need to type various command for compiling, interpreter, debugging, tracing, and etc., because the IDE typically has an sophisticated graphical user interface, or GUI.

* Application software allows humans to complete one or more explicit tasks. typical applications include manufacturingautomation, business software, educational software, medical software, databases and computer games. Businesses are possibly the biggest users of application software, but approximately every field of human action now uses some form of application software. It is used tocomputerizeall sorts of functions.

Wednesday, June 20, 2007


A game is a prepared or semi-structured activity, generally undertaken for enjoyment and sometimes also used as an learning tool. (The term "game" is also used to explain recreation of different activities e.g., for the purposes of training, study or prediction, etc,) Games are generally different from work, which is usually accepted out for payment, and from art, which is more concerned with the term of ideas. However, the distinction is not clear-cut, and a lot of games may also be considered work and/or art. Key components of games are goals, policy, challenge, and interactivity. Games generally involve mental or objective stimulation, and often both. Many games help develop useful skills, serve as a form of exercise, or else perform an educational, simulation or emotional role.

Thursday, June 14, 2007


The act of travel from one place to the other for the purpose of recreation and business, and provision of service s known as tourism.
Tourism can be defined as a service industry, comprising a number of tangible and intangible components. Transport systems like air, rail, road, water and now, space and other services like, hospitality services — accommodation, foods and beverages, tours, souvenirs; and related services such as banking, insurance and safety and security are said to be as tangible elements. The intangible elements include: rest and relaxation, culture, escape, adventure, new and different experiences.

Saturday, June 09, 2007

History of Egypt

The history of Egypt is the fastest constant history, as a unified state, of every country in the world. The Nile valley forms a natural geographic unit, surrounded to the east and west by deserts, to the north by the sea and to the south by the Cataracts of the Nile. They require having a single ability to manage the waters of the Nile led to the making of the world's first state in Egypt in about 3000 BC. Egypt's peculiar geography made it a hard country to attack, which is why Pharaonic Egypt was for so long an sovereign and self-contained state.

Once Egypt did yield to foreign rule, yet, it proved unable to escape from it, and for 2,400 years Egypt was governed by foreigners. (The Hyksos were among the first foreign rulers of Egypt, but the ancient Egyptians regained organize of their country after the Hykso period.)

Monday, June 04, 2007


One universal issue is control over who could wear what jewellery, a point which indicate the powerful symbolism the wearing of jewellery evoked. In ancient Rome, for instance, only convinced ranks could wear rings; later, sumptuary laws dictated who could wear what type of jewellery; again based on rank. Cultural dictate have also played a important role; for example, the wearing of earrings by Western men was considered "effeminate" in the 19th and early 20th centuries. on the other hand, the jewellery industry in the early 20th century launched a crusade to popularize wedding rings for men — which caught on — as well as appointment rings for men , going so far as to make a false history and claim that the practice had Medieval roots. By the mid 1940s, 85% of weddings in the U.S. feature a double-ring ceremony, up from 15% in the 1920s.Religion has also played a role: Islam, for instance, consider the wearing of gold by men as a social taboo,and many religions have edicts against extreme display.