Email change World Communication  In today’s world proper communication has taken a vital role in everybody’s life, whether it is a single entity, or a corporate house or a country. With the advancement of science and technology, modes of communication are always changing and evolving. With the advent of the computers and Internet boom everything seems to a mere click away. Electronic mails have transformed the lives of the people. With...

Dreams  Dreaming is a form of mental activity, different from waking thought that occurs during sleep. The nature of dream activity has been characterized by many clinical and laboratory studies. These studies show that dreams are more perceptual than conceptual: things are seen and heard rather than being subjected to thought. In terms of the senses, visual experience is present in almost all dreams; auditory experience in 40 to 50 per...

The Big Bang Theory  Nobody knows how was the universe formed. Neither one knows that would it continue the same way or when would it end. Astronomers construct hypotheses called cosmological models that try to find the answer. There are two types of models: Big Bang and Steady State. However, through many observational evidences, the Big Bang theory can best explain the creation of the universe. In 1948 the Russian-American physicist...

Ozone Depletion  Without our atmosphere, there would be no life on Earth. A relatively thin envelope, the atmosphere consists of layers of gases that support life and provide protection from harmful radiation. Ozone Layer is a layer of the chemical ozone present in the atmosphere protecting the Earth from ultraviolet radiation. But atmospheric ozone layer depletion is a serious problem currently facing the world. The ozone layer protects humans, animals, and...

Compact Disc – CD At the beginning of the last decade of the twentieth century a new media for the storage and playback of music came into the picture. The compact disc was a phenomenon of sorts, causing people to completely rebuild record collections that had taken years to build. It was a situation of, ‘out with the old in with the new.’ There seemed to be no place for the...

India in Space In India, the space program we was formerly launched in 1972 with the setting up of the Space Commission and the Department of Space. Advancement in areas of communication, meteorology, resources survey and management, develop satellites, launch vehicles and associated ground systems were the initial objectives. Since then, India has made impressive progress in this field. Space technology has not only enhanced India’s communication capabilities, but has also...

Revolution of Multimedia  Multimedia, in computer science, the presentation of information using the combination of text, sound, pictures, animation and video. Common multimedia computer applications include games, learning software and reference materials, such as an encyclopedia. Most multimedia applications include pre-defined associations, known as hyperlinks that enable users to switch between media elements and topics. Thoughtfully presented multimedia can enhance the scope of presentation in ways that are similar to the...

Computer : Today and Tomorrow  Computers have been around for years and help a great deal at home and in the workplace. Not only can you use the computer for word-processing programs, but for games and on-line service as well. A person can spend hours on the computer whether on-line or not. After invention of internet most of us spend our time on-line because it helps us in gaining knowledge about...