Computer    Necessity is the mother of revolution. The saying holds true for computers also because computers were invented as a result of main search for a fast and accurate calculating device. The earliest device that qualifies as a digital computer is the abacus. The device permits the users to represent the number by the position of beads on the rock. Although abacus was invented around 600 B.C. It is interesting...

E-Education Information Technology has made information about any even or phenomena taking place at any place in the world at any time, available to any person anywhere is the basis of knowledge acquisition process has therefore tremendously benefited by the advent of information technology. Virtual Bank of Experts—In the case of formal education, the main determining factor about the quality of education is the quality of the teaching material, curriculum and...

E-Governance Government must be able to take quick timely and correct decision. Availability of complete and detailed information about the issues involved through analysis of the available information and assessment of the impact of the decisions form the basis of correct decisions. Information technology has provided online access to all information, all matters or events, at any time and from any location. First step of e-governance is therefore establishment of infrastructure...

The Human Genome Project  The Human Genome Project launched in 1990 is biology’s first large science project and is planned with an outlay of three billion dollars and an international collaboration involving 18 countries and 250 laboratories. The main aim of the project is to create a map of the entire set of genes (genome) in the human cell by decoding three billion units or base pairs (bp) of the human...

Science in the Service of Man Essay No. 01 Facsimile (Fax)—Facsimile transfer of messages i.e. is used for transmission of weather charts, engineering drawing and even hand written notes. It transfers copies of any types of document written in any language and in any script with a great speed. The Fax employs a photo-scanning process to obtain its electrical signals which are then transmitted through the communication channels at the receiver...

Our Energy Resources Social and economic development of any country is directly proportional to the development of energy resources of that country. Industrial development is impossible without energy. Science and technology is at the root of all power development projects. However, the present stock of energy resources of the world is limited and the world can be benefited from this stock only for few decades. On the other hand, the consumption...

Modern Medical Techniques    Genes—The term Genes was coined by the Danish biologist William Johannsen. However Gregor Johann Mandel was the first to show hereditary factors in all the biological species. These genes were responsible not only for transmitting hereditary traits, but also for influencing the entire process of life. For long these genes remained an enigma, but with the discovery of the DNA (Deoxy Ribonucleic Acid) by Watson and Crick...

Modern Techniques for Crime Detection   Narco Analysis, Brain Mapping and Lie Detector Test—The term narco analysis was coined in 1936 for the use of narcotics to induce a state where the subject talk freely and is deprived of his self-control and will power to manipulate his answers. In a narco analysis test the subjects imagination is naturalised and reasoning faculty affected by making him semi-concious. In this state it becomes...